Sleep Apnea and the Risk of Dementia: A Population-Based 5-Year Follow-Up Study in Taiwan
Events
Loading … Spinner

Mendeley | Further Information

{"title"=>"Sleep Apnea and the Risk of Dementia: A Population-Based 5-Year Follow-Up Study in Taiwan", "type"=>"journal", "authors"=>[{"first_name"=>"Wei-Pin", "last_name"=>"Chang"}, {"first_name"=>"Mu-En", "last_name"=>"Liu"}, {"first_name"=>"Wei-Chiao", "last_name"=>"Chang"}, {"first_name"=>"Albert C.", "last_name"=>"Yang"}, {"first_name"=>"Yan-Chiou", "last_name"=>"Ku"}, {"first_name"=>"Jei-Tsung", "last_name"=>"Pai"}, {"first_name"=>"Hsiao-Ling", "last_name"=>"Huang"}, {"first_name"=>"Shih-Jen", "last_name"=>"Tsai"}], "year"=>2013, "source"=>"PLoS ONE", "identifiers"=>{"pmid"=>"24205289", "doi"=>"10.1371/journal.pone.0078655", "isbn"=>"1932-6203", "issn"=>"1932-6203"}, "id"=>"f92c1a29-f090-327f-b7b6-229d1b77b636", "abstract"=>"BACKGROUND Sleep apnea (SA) has been associated with cognitive impairment. However, no data regarding the risk of dementia in patients with SA has been reported in the general population. This retrospective matched-control cohort study was designed to estimate and compare the risk of dementia in SA and non-SA patients among persons aged 40 and above over a 5-year period follow-up. METHODS We conducted a nationwide 5-year population-based study using data retrieved from the Longitudinal Health Insurance Database 2005 (LHID2005) in Taiwan. The study cohort comprised 1414 patients with SA aged 40 years who had at least 1 inpatient service claim or 1 ambulatory care claim. The comparison cohort comprised 7070 randomly selected patients who were matched with the study group according to sex, age, and index year. We performed Cox proportional-hazards regressions to compute the 5-year dementia-free survival rates after adjusting for potentially confounding factors. RESULTS The SA patients in this study had a 1.70-times greater risk of developing dementia within 5 years of diagnosis compared to non-SA age- and sex-matched patients, after adjusting for other risk factors (95% confidence interval (CI) = 1.26-2.31; P < .01). For the gender-dependent effect, only females with SA were more likely to develop dementia (adjust HR: 2.38, 95% CI =1.51-3.74; P < .001). For the age-dependent effect of different genders, males with SA aged 50-59 years had a 6.08 times greater risk for developing dementia (95% CI = 1.96-18.90), and females with SA aged ≥ 70 years had a 3.20 times greater risk of developing dementia (95% CI =1.71-6.00). For the time-dependent effect, dementia may be most likely to occur in the first 2.5 years of follow-up (adjusted HR:2.04, 95% CI =1.35-3.07). CONCLUSIONS SA may be a gender-dependent, age-dependent, and time-dependent risk factor for dementia.", "link"=>"http://www.mendeley.com/research/sleep-apnea-risk-dementia-populationbased-5year-followup-study-taiwan-1", "reader_count"=>21, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>3, "Researcher"=>3, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>6, "Student > Postgraduate"=>2, "Student > Master"=>2, "Other"=>1, "Student > Bachelor"=>1, "Lecturer > Senior Lecturer"=>1, "Unspecified"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>3, "Researcher"=>3, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>6, "Student > Postgraduate"=>2, "Student > Master"=>2, "Other"=>1, "Student > Bachelor"=>1, "Lecturer > Senior Lecturer"=>1, "Unspecified"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>4, "Nursing and Health Professions"=>2, "Medicine and Dentistry"=>9, "Neuroscience"=>1, "Psychology"=>3, "Decision Sciences"=>1, "Linguistics"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>9}, "Neuroscience"=>{"Neuroscience"=>1}, "Decision Sciences"=>{"Decision Sciences"=>1}, "Psychology"=>{"Psychology"=>3}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>2}, "Linguistics"=>{"Linguistics"=>1}, "Unspecified"=>{"Unspecified"=>4}}, "reader_count_by_country"=>{"Japan"=>1}, "group_count"=>1}

CrossRef

Scopus | Further Information

{"@_fa"=>"true", "link"=>[{"@_fa"=>"true", "@ref"=>"self", "@href"=>"https://api.elsevier.com/content/abstract/scopus_id/84886255595"}, {"@_fa"=>"true", "@ref"=>"author-affiliation", "@href"=>"https://api.elsevier.com/content/abstract/scopus_id/84886255595?field=author,affiliation"}, {"@_fa"=>"true", "@ref"=>"scopus", "@href"=>"https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84886255595&origin=inward"}, {"@_fa"=>"true", "@ref"=>"scopus-citedby", "@href"=>"https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84886255595&origin=inward"}], "prism:url"=>"https://api.elsevier.com/content/abstract/scopus_id/84886255595", "dc:identifier"=>"SCOPUS_ID:84886255595", "eid"=>"2-s2.0-84886255595", "dc:title"=>"Sleep Apnea and the Risk of Dementia: A Population-Based 5-Year Follow-Up Study in Taiwan", "dc:creator"=>"Chang W.", "prism:publicationName"=>"PLoS ONE", "prism:eIssn"=>"19326203", "prism:volume"=>"8", "prism:issueIdentifier"=>"10", "prism:pageRange"=>nil, "prism:coverDate"=>"2013-10-24", "prism:coverDisplayDate"=>"24 October 2013", "prism:doi"=>"10.1371/journal.pone.0078655", "citedby-count"=>"65", "affiliation"=>[{"@_fa"=>"true", "affilname"=>"Yuanpei University of Medical Technology", "affiliation-city"=>"Hsinchu", "affiliation-country"=>"Taiwan"}], "pubmed-id"=>"24205289", "prism:aggregationType"=>"Journal", "subtype"=>"ar", "subtypeDescription"=>"Article", "article-number"=>"e78655", "source-id"=>"10600153309", "openaccess"=>"1", "openaccessFlag"=>true}

Facebook

  • {"url"=>"http%3A%2F%2Fjournals.plos.org%2Fplosone%2Farticle%3Fid%3D10.1371%252Fjournal.pone.0078655", "share_count"=>0, "like_count"=>0, "comment_count"=>0, "click_count"=>0, "total_count"=>0}

Counter

  • {"month"=>"10", "year"=>"2013", "pdf_views"=>"35", "xml_views"=>"20", "html_views"=>"262"}
  • {"month"=>"11", "year"=>"2013", "pdf_views"=>"42", "xml_views"=>"0", "html_views"=>"104"}
  • {"month"=>"12", "year"=>"2013", "pdf_views"=>"23", "xml_views"=>"0", "html_views"=>"75"}
  • {"month"=>"1", "year"=>"2014", "pdf_views"=>"21", "xml_views"=>"0", "html_views"=>"66"}
  • {"month"=>"2", "year"=>"2014", "pdf_views"=>"13", "xml_views"=>"0", "html_views"=>"54"}
  • {"month"=>"3", "year"=>"2014", "pdf_views"=>"9", "xml_views"=>"2", "html_views"=>"43"}
  • {"month"=>"4", "year"=>"2014", "pdf_views"=>"6", "xml_views"=>"1", "html_views"=>"31"}
  • {"month"=>"5", "year"=>"2014", "pdf_views"=>"12", "xml_views"=>"1", "html_views"=>"40"}
  • {"month"=>"6", "year"=>"2014", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"48"}
  • {"month"=>"7", "year"=>"2014", "pdf_views"=>"4", "xml_views"=>"0", "html_views"=>"42"}
  • {"month"=>"8", "year"=>"2014", "pdf_views"=>"8", "xml_views"=>"2", "html_views"=>"38"}
  • {"month"=>"9", "year"=>"2014", "pdf_views"=>"11", "xml_views"=>"1", "html_views"=>"41"}
  • {"month"=>"10", "year"=>"2014", "pdf_views"=>"13", "xml_views"=>"1", "html_views"=>"42"}
  • {"month"=>"11", "year"=>"2014", "pdf_views"=>"6", "xml_views"=>"2", "html_views"=>"30"}
  • {"month"=>"12", "year"=>"2014", "pdf_views"=>"9", "xml_views"=>"2", "html_views"=>"48"}
  • {"month"=>"1", "year"=>"2015", "pdf_views"=>"10", "xml_views"=>"0", "html_views"=>"40"}
  • {"month"=>"2", "year"=>"2015", "pdf_views"=>"5", "xml_views"=>"0", "html_views"=>"35"}
  • {"month"=>"3", "year"=>"2015", "pdf_views"=>"12", "xml_views"=>"0", "html_views"=>"32"}
  • {"month"=>"4", "year"=>"2015", "pdf_views"=>"8", "xml_views"=>"1", "html_views"=>"19"}
  • {"month"=>"5", "year"=>"2015", "pdf_views"=>"15", "xml_views"=>"0", "html_views"=>"46"}
  • {"month"=>"6", "year"=>"2015", "pdf_views"=>"12", "xml_views"=>"0", "html_views"=>"32"}
  • {"month"=>"7", "year"=>"2015", "pdf_views"=>"7", "xml_views"=>"0", "html_views"=>"35"}
  • {"month"=>"8", "year"=>"2015", "pdf_views"=>"4", "xml_views"=>"0", "html_views"=>"108"}
  • {"month"=>"9", "year"=>"2015", "pdf_views"=>"8", "xml_views"=>"1", "html_views"=>"41"}
  • {"month"=>"10", "year"=>"2015", "pdf_views"=>"8", "xml_views"=>"1", "html_views"=>"47"}
  • {"month"=>"11", "year"=>"2015", "pdf_views"=>"4", "xml_views"=>"0", "html_views"=>"38"}
  • {"month"=>"12", "year"=>"2015", "pdf_views"=>"5", "xml_views"=>"0", "html_views"=>"45"}
  • {"month"=>"1", "year"=>"2016", "pdf_views"=>"5", "xml_views"=>"0", "html_views"=>"55"}
  • {"month"=>"2", "year"=>"2016", "pdf_views"=>"2", "xml_views"=>"0", "html_views"=>"44"}
  • {"month"=>"3", "year"=>"2016", "pdf_views"=>"7", "xml_views"=>"0", "html_views"=>"43"}
  • {"month"=>"4", "year"=>"2016", "pdf_views"=>"7", "xml_views"=>"0", "html_views"=>"30"}
  • {"month"=>"5", "year"=>"2016", "pdf_views"=>"13", "xml_views"=>"0", "html_views"=>"34"}
  • {"month"=>"6", "year"=>"2016", "pdf_views"=>"7", "xml_views"=>"0", "html_views"=>"28"}
  • {"month"=>"7", "year"=>"2016", "pdf_views"=>"2", "xml_views"=>"0", "html_views"=>"23"}
  • {"month"=>"8", "year"=>"2016", "pdf_views"=>"7", "xml_views"=>"0", "html_views"=>"27"}
  • {"month"=>"9", "year"=>"2016", "pdf_views"=>"14", "xml_views"=>"0", "html_views"=>"42"}
  • {"month"=>"10", "year"=>"2016", "pdf_views"=>"9", "xml_views"=>"0", "html_views"=>"27"}
  • {"month"=>"11", "year"=>"2016", "pdf_views"=>"1", "xml_views"=>"0", "html_views"=>"41"}
  • {"month"=>"12", "year"=>"2016", "pdf_views"=>"6", "xml_views"=>"0", "html_views"=>"24"}
  • {"month"=>"1", "year"=>"2017", "pdf_views"=>"4", "xml_views"=>"1", "html_views"=>"25"}
  • {"month"=>"2", "year"=>"2017", "pdf_views"=>"3", "xml_views"=>"0", "html_views"=>"39"}
  • {"month"=>"3", "year"=>"2017", "pdf_views"=>"9", "xml_views"=>"2", "html_views"=>"58"}
  • {"month"=>"4", "year"=>"2017", "pdf_views"=>"17", "xml_views"=>"1", "html_views"=>"35"}
  • {"month"=>"5", "year"=>"2017", "pdf_views"=>"18", "xml_views"=>"0", "html_views"=>"31"}
  • {"month"=>"6", "year"=>"2017", "pdf_views"=>"5", "xml_views"=>"1", "html_views"=>"30"}
  • {"month"=>"7", "year"=>"2017", "pdf_views"=>"4", "xml_views"=>"0", "html_views"=>"33"}
  • {"month"=>"8", "year"=>"2017", "pdf_views"=>"5", "xml_views"=>"1", "html_views"=>"35"}
  • {"month"=>"9", "year"=>"2017", "pdf_views"=>"5", "xml_views"=>"0", "html_views"=>"26"}
  • {"month"=>"10", "year"=>"2017", "pdf_views"=>"6", "xml_views"=>"2", "html_views"=>"33"}
  • {"month"=>"11", "year"=>"2017", "pdf_views"=>"9", "xml_views"=>"1", "html_views"=>"96"}
  • {"month"=>"12", "year"=>"2017", "pdf_views"=>"8", "xml_views"=>"1", "html_views"=>"32"}
  • {"month"=>"1", "year"=>"2018", "pdf_views"=>"7", "xml_views"=>"0", "html_views"=>"23"}
  • {"month"=>"2", "year"=>"2018", "pdf_views"=>"21", "xml_views"=>"0", "html_views"=>"25"}
  • {"month"=>"3", "year"=>"2018", "pdf_views"=>"15", "xml_views"=>"1", "html_views"=>"31"}
  • {"month"=>"4", "year"=>"2018", "pdf_views"=>"12", "xml_views"=>"1", "html_views"=>"28"}
  • {"month"=>"5", "year"=>"2018", "pdf_views"=>"14", "xml_views"=>"0", "html_views"=>"17"}
  • {"month"=>"6", "year"=>"2018", "pdf_views"=>"6", "xml_views"=>"0", "html_views"=>"15"}
  • {"month"=>"7", "year"=>"2018", "pdf_views"=>"6", "xml_views"=>"3", "html_views"=>"18"}
  • {"month"=>"8", "year"=>"2018", "pdf_views"=>"10", "xml_views"=>"3", "html_views"=>"29"}
  • {"month"=>"9", "year"=>"2018", "pdf_views"=>"7", "xml_views"=>"1", "html_views"=>"19"}
  • {"month"=>"10", "year"=>"2018", "pdf_views"=>"12", "xml_views"=>"1", "html_views"=>"17"}
  • {"month"=>"11", "year"=>"2018", "pdf_views"=>"13", "xml_views"=>"0", "html_views"=>"28"}
  • {"month"=>"12", "year"=>"2018", "pdf_views"=>"1", "xml_views"=>"0", "html_views"=>"12"}
  • {"month"=>"1", "year"=>"2019", "pdf_views"=>"15", "xml_views"=>"0", "html_views"=>"20"}
  • {"month"=>"2", "year"=>"2019", "pdf_views"=>"16", "xml_views"=>"0", "html_views"=>"34"}
  • {"month"=>"3", "year"=>"2019", "pdf_views"=>"24", "xml_views"=>"0", "html_views"=>"42"}
  • {"month"=>"4", "year"=>"2019", "pdf_views"=>"15", "xml_views"=>"0", "html_views"=>"27"}
  • {"month"=>"5", "year"=>"2019", "pdf_views"=>"9", "xml_views"=>"1", "html_views"=>"28"}
  • {"month"=>"6", "year"=>"2019", "pdf_views"=>"13", "xml_views"=>"0", "html_views"=>"20"}
  • {"month"=>"7", "year"=>"2019", "pdf_views"=>"21", "xml_views"=>"0", "html_views"=>"17"}
  • {"month"=>"8", "year"=>"2019", "pdf_views"=>"18", "xml_views"=>"2", "html_views"=>"30"}
  • {"month"=>"9", "year"=>"2019", "pdf_views"=>"10", "xml_views"=>"0", "html_views"=>"11"}
  • {"month"=>"10", "year"=>"2019", "pdf_views"=>"16", "xml_views"=>"0", "html_views"=>"16"}
  • {"month"=>"11", "year"=>"2019", "pdf_views"=>"19", "xml_views"=>"0", "html_views"=>"22"}
  • {"month"=>"12", "year"=>"2019", "pdf_views"=>"20", "xml_views"=>"0", "html_views"=>"13"}
  • {"month"=>"1", "year"=>"2020", "pdf_views"=>"12", "xml_views"=>"1", "html_views"=>"19"}
  • {"month"=>"2", "year"=>"2020", "pdf_views"=>"9", "xml_views"=>"1", "html_views"=>"4"}
  • {"month"=>"3", "year"=>"2020", "pdf_views"=>"11", "xml_views"=>"0", "html_views"=>"24"}
  • {"month"=>"4", "year"=>"2020", "pdf_views"=>"16", "xml_views"=>"0", "html_views"=>"9"}
  • {"month"=>"5", "year"=>"2020", "pdf_views"=>"9", "xml_views"=>"1", "html_views"=>"1"}
  • {"month"=>"6", "year"=>"2020", "pdf_views"=>"2", "xml_views"=>"1", "html_views"=>"0"}
  • {"month"=>"7", "year"=>"2020", "pdf_views"=>"11", "xml_views"=>"0", "html_views"=>"19"}
  • {"month"=>"8", "year"=>"2020", "pdf_views"=>"14", "xml_views"=>"0", "html_views"=>"12"}
  • {"month"=>"9", "year"=>"2020", "pdf_views"=>"13", "xml_views"=>"1", "html_views"=>"7"}

Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1257296", "https://ndownloader.figshare.com/files/1257297", "https://ndownloader.figshare.com/files/1257298", "https://ndownloader.figshare.com/files/1257299", "https://ndownloader.figshare.com/files/1257300", "https://ndownloader.figshare.com/files/1257301", "https://ndownloader.figshare.com/files/1257302", "https://ndownloader.figshare.com/files/1257303"], "description"=>"<div><p>Background</p><p>Sleep apnea (SA) has been associated with cognitive impairment. However, no data regarding the risk of dementia in patients with SA has been reported in the general population. This retrospective matched-control cohort study was designed to estimate and compare the risk of dementia in SA and non-SA patients among persons aged 40 and above over a 5-year period follow-up.</p> <p>Methods</p><p>We conducted a nationwide 5-year population-based study using data retrieved from the Longitudinal Health Insurance Database 2005 (LHID2005) in Taiwan. The study cohort comprised 1414 patients with SA aged 40 years who had at least 1 inpatient service claim or 1 ambulatory care claim. The comparison cohort comprised 7070 randomly selected patients who were matched with the study group according to sex, age, and index year. We performed Cox proportional-hazards regressions to compute the 5-year dementia-free survival rates after adjusting for potentially confounding factors.</p> <p>Results</p><p>The SA patients in this study had a 1.70-times greater risk of developing dementia within 5 years of diagnosis compared to non-SA age- and sex-matched patients, after adjusting for other risk factors (95% confidence interval (CI) = 1.26-2.31; <i>P</i> < .01). For the gender-dependent effect, only females with SA were more likely to develop dementia (adjust HR: 2.38, 95% CI =1.51–3.74; <i>P</i> < .001). For the age-dependent effect of different genders, males with SA aged 50-59 years had a 6.08 times greater risk for developing dementia (95% CI = 1.96-18.90), and females with SA aged ≥ 70 years had a 3.20 times greater risk of developing dementia (95% CI =1.71–6.00). For the time-dependent effect, dementia may be most likely to occur in the first 2.5 years of follow-up (adjusted HR:2.04, 95% CI =1.35-3.07).</p> <p>Conclusions</p><p>SA may be a gender-dependent, age-dependent, and time-dependent risk factor for dementia.</p> </div>", "links"=>[], "tags"=>["apnea", "population-based", "5-year", "follow-up"], "article_id"=>831869, "categories"=>["Biological Sciences"], "users"=>["Wei-Pin Chang", "Mu-En Liu", "Wei-Chiao Chang", "Albert C. Yang", "Yan-Chiou Ku", "Jei-Tsung Pai", "Hsiao-Ling Huang", "Shih-Jen Tsai"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0078655.s001", "https://dx.doi.org/10.1371/journal.pone.0078655.s002", "https://dx.doi.org/10.1371/journal.pone.0078655.s003", "https://dx.doi.org/10.1371/journal.pone.0078655.s004", "https://dx.doi.org/10.1371/journal.pone.0078655.s005", "https://dx.doi.org/10.1371/journal.pone.0078655.s006", "https://dx.doi.org/10.1371/journal.pone.0078655.s007", "https://dx.doi.org/10.1371/journal.pone.0078655.s008"], "stats"=>{"downloads"=>2, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Sleep_Apnea_and_the_Risk_of_Dementia_A_Population_Based_5_Year_Follow_Up_Study_in_Taiwan_/831869", "title"=>"Sleep Apnea and the Risk of Dementia: A Population-Based 5-Year Follow-Up Study in Taiwan", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2013-10-24 03:12:53"}
  • {"files"=>["https://ndownloader.figshare.com/files/1257294"], "description"=>"<p>The research design followchart of present study.</p>", "links"=>[], "tags"=>["followchart"], "article_id"=>831867, "categories"=>["Biological Sciences"], "users"=>["Wei-Pin Chang", "Mu-En Liu", "Wei-Chiao Chang", "Albert C. Yang", "Yan-Chiou Ku", "Jei-Tsung Pai", "Hsiao-Ling Huang", "Shih-Jen Tsai"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078655.g001", "stats"=>{"downloads"=>1, "page_views"=>16, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_The_research_design_followchart_of_present_study_/831867", "title"=>"The research design followchart of present study.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-10-24 03:12:53"}
  • {"files"=>["https://ndownloader.figshare.com/files/1257295"], "description"=>"<p>Dementia event-free risk over time among two groups.</p>", "links"=>[], "tags"=>["event-free"], "article_id"=>831868, "categories"=>["Biological Sciences"], "users"=>["Wei-Pin Chang", "Mu-En Liu", "Wei-Chiao Chang", "Albert C. Yang", "Yan-Chiou Ku", "Jei-Tsung Pai", "Hsiao-Ling Huang", "Shih-Jen Tsai"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078655.g002", "stats"=>{"downloads"=>1, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Dementia_event_free_risk_over_time_among_two_groups_/831868", "title"=>"Dementia event-free risk over time among two groups.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-10-24 03:12:53"}

PMC Usage Stats | Further Information

  • {"unique-ip"=>"48", "full-text"=>"46", "pdf"=>"22", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"10", "supp-data"=>"27", "cited-by"=>"0", "year"=>"2013", "month"=>"11"}
  • {"unique-ip"=>"25", "full-text"=>"28", "pdf"=>"18", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"12"}
  • {"unique-ip"=>"20", "full-text"=>"24", "pdf"=>"15", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"1"}
  • {"unique-ip"=>"29", "full-text"=>"42", "pdf"=>"17", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"2"}
  • {"unique-ip"=>"23", "full-text"=>"26", "pdf"=>"15", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2014", "month"=>"3"}
  • {"unique-ip"=>"16", "full-text"=>"17", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"5", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"5"}
  • {"unique-ip"=>"19", "full-text"=>"24", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"6"}
  • {"unique-ip"=>"19", "full-text"=>"19", "pdf"=>"13", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"5", "supp-data"=>"3", "cited-by"=>"0", "year"=>"2014", "month"=>"4"}
  • {"unique-ip"=>"22", "full-text"=>"22", "pdf"=>"12", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2015", "month"=>"4"}
  • {"unique-ip"=>"32", "full-text"=>"32", "pdf"=>"18", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"5"}
  • {"unique-ip"=>"16", "full-text"=>"17", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2015", "month"=>"6"}
  • {"unique-ip"=>"17", "full-text"=>"17", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"7"}
  • {"unique-ip"=>"26", "full-text"=>"24", "pdf"=>"14", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"3"}
  • {"unique-ip"=>"22", "full-text"=>"29", "pdf"=>"12", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"2"}
  • {"unique-ip"=>"15", "full-text"=>"18", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"8"}
  • {"unique-ip"=>"14", "full-text"=>"14", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"9"}
  • {"unique-ip"=>"24", "full-text"=>"25", "pdf"=>"13", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"10"}
  • {"unique-ip"=>"9", "full-text"=>"9", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"7"}
  • {"unique-ip"=>"14", "full-text"=>"13", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"8"}
  • {"unique-ip"=>"26", "full-text"=>"27", "pdf"=>"15", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2014", "month"=>"9"}
  • {"unique-ip"=>"23", "full-text"=>"15", "pdf"=>"7", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"7", "cited-by"=>"0", "year"=>"2014", "month"=>"10"}
  • {"unique-ip"=>"14", "full-text"=>"14", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"2"}
  • {"unique-ip"=>"17", "full-text"=>"25", "pdf"=>"15", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"25", "cited-by"=>"0", "year"=>"2014", "month"=>"11"}
  • {"unique-ip"=>"21", "full-text"=>"19", "pdf"=>"15", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"12"}
  • {"unique-ip"=>"14", "full-text"=>"12", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"1"}
  • {"unique-ip"=>"28", "full-text"=>"28", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2015", "month"=>"11"}
  • {"unique-ip"=>"24", "full-text"=>"18", "pdf"=>"18", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"12"}
  • {"unique-ip"=>"15", "full-text"=>"15", "pdf"=>"8", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"1"}
  • {"unique-ip"=>"16", "full-text"=>"18", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2016", "month"=>"3"}
  • {"unique-ip"=>"22", "full-text"=>"22", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"5", "cited-by"=>"0", "year"=>"2016", "month"=>"4"}
  • {"unique-ip"=>"13", "full-text"=>"13", "pdf"=>"9", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"5"}
  • {"unique-ip"=>"15", "full-text"=>"14", "pdf"=>"8", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"2", "cited-by"=>"0", "year"=>"2016", "month"=>"6"}
  • {"unique-ip"=>"11", "full-text"=>"12", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"2", "cited-by"=>"1", "year"=>"2016", "month"=>"7"}
  • {"unique-ip"=>"10", "full-text"=>"9", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"8"}
  • {"unique-ip"=>"14", "full-text"=>"15", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"7", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"9"}
  • {"unique-ip"=>"22", "full-text"=>"21", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2016", "month"=>"10"}
  • {"unique-ip"=>"15", "full-text"=>"17", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"11"}
  • {"unique-ip"=>"6", "full-text"=>"6", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"12"}
  • {"unique-ip"=>"16", "full-text"=>"17", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"5", "cited-by"=>"0", "year"=>"2017", "month"=>"1"}
  • {"unique-ip"=>"8", "full-text"=>"7", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"2"}
  • {"unique-ip"=>"10", "full-text"=>"11", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2017", "month"=>"3"}
  • {"unique-ip"=>"9", "full-text"=>"8", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"4"}
  • {"unique-ip"=>"12", "full-text"=>"13", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"5"}
  • {"unique-ip"=>"13", "full-text"=>"14", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"6"}
  • {"unique-ip"=>"10", "full-text"=>"11", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"7"}
  • {"unique-ip"=>"13", "full-text"=>"11", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"8"}
  • {"unique-ip"=>"15", "full-text"=>"14", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"9"}
  • {"unique-ip"=>"21", "full-text"=>"18", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"8", "cited-by"=>"0", "year"=>"2017", "month"=>"10"}
  • {"unique-ip"=>"17", "full-text"=>"19", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"4", "cited-by"=>"1", "year"=>"2017", "month"=>"11"}
  • {"unique-ip"=>"11", "full-text"=>"12", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"12"}
  • {"unique-ip"=>"18", "full-text"=>"20", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"1"}
  • {"unique-ip"=>"19", "full-text"=>"31", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"3"}
  • {"unique-ip"=>"6", "full-text"=>"6", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"1"}
  • {"unique-ip"=>"28", "full-text"=>"28", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"6", "cited-by"=>"0", "year"=>"2018", "month"=>"11"}
  • {"unique-ip"=>"17", "full-text"=>"20", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"9"}
  • {"unique-ip"=>"24", "full-text"=>"32", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"4", "cited-by"=>"0", "year"=>"2018", "month"=>"4"}
  • {"unique-ip"=>"19", "full-text"=>"26", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2018", "month"=>"5"}
  • {"unique-ip"=>"19", "full-text"=>"22", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"6"}
  • {"unique-ip"=>"25", "full-text"=>"20", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"9", "cited-by"=>"1", "year"=>"2018", "month"=>"7"}
  • {"unique-ip"=>"14", "full-text"=>"13", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2018", "month"=>"8"}
  • {"unique-ip"=>"19", "full-text"=>"20", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"10"}
  • {"unique-ip"=>"12", "full-text"=>"12", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"12"}
  • {"unique-ip"=>"20", "full-text"=>"19", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2019", "month"=>"2"}
  • {"unique-ip"=>"32", "full-text"=>"41", "pdf"=>"13", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"10", "cited-by"=>"0", "year"=>"2019", "month"=>"3"}
  • {"unique-ip"=>"26", "full-text"=>"28", "pdf"=>"9", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"10", "cited-by"=>"0", "year"=>"2019", "month"=>"4"}
  • {"unique-ip"=>"16", "full-text"=>"15", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"8", "cited-by"=>"0", "year"=>"2019", "month"=>"5"}
  • {"unique-ip"=>"25", "full-text"=>"28", "pdf"=>"8", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"11", "cited-by"=>"0", "year"=>"2019", "month"=>"8"}
  • {"unique-ip"=>"48", "full-text"=>"53", "pdf"=>"10", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"13", "cited-by"=>"1", "year"=>"2019", "month"=>"9"}
  • {"unique-ip"=>"19", "full-text"=>"16", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"2", "cited-by"=>"0", "year"=>"2019", "month"=>"10"}
  • {"unique-ip"=>"11", "full-text"=>"11", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"12"}
  • {"unique-ip"=>"34", "full-text"=>"41", "pdf"=>"10", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"6", "cited-by"=>"0", "year"=>"2020", "month"=>"2"}
  • {"unique-ip"=>"33", "full-text"=>"38", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"8", "cited-by"=>"2", "year"=>"2020", "month"=>"3"}
  • {"unique-ip"=>"21", "full-text"=>"25", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"4", "cited-by"=>"0", "year"=>"2020", "month"=>"4"}
  • {"unique-ip"=>"22", "full-text"=>"37", "pdf"=>"8", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"3", "cited-by"=>"0", "year"=>"2020", "month"=>"5"}
  • {"unique-ip"=>"17", "full-text"=>"18", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"6"}
  • {"unique-ip"=>"8", "full-text"=>"8", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"7"}
  • {"unique-ip"=>"8", "full-text"=>"6", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2020", "month"=>"8"}

Relative Metric

{"start_date"=>"2013-01-01T00:00:00Z", "end_date"=>"2013-12-31T00:00:00Z", "subject_areas"=>[{"subject_area"=>"/Biology and life sciences/Physiology", "average_usage"=>[256, 449, 572, 676, 775, 866, 955, 1041, 1127, 1213, 1290, 1370, 1437]}, {"subject_area"=>"/Medicine and health sciences", "average_usage"=>[264, 460, 584, 692, 794, 887, 978, 1067, 1154, 1241, 1328, 1408, 1474]}, {"subject_area"=>"/Medicine and health sciences/Anatomy and physiology", "average_usage"=>[253, 430]}, {"subject_area"=>"/Medicine and health sciences/Diagnostic medicine", "average_usage"=>[244, 425, 535, 636, 728, 814, 900, 982, 1063, 1139, 1221, 1296, 1361]}, {"subject_area"=>"/Medicine and health sciences/Neurology", "average_usage"=>[271, 485, 617, 733, 835, 933, 1026, 1115, 1207, 1294, 1386, 1475, 1543]}, {"subject_area"=>"/Medicine and health sciences/Pulmonology", "average_usage"=>[241, 428, 552, 659, 752, 848, 934, 1028, 1106, 1183, 1267, 1350, 1401]}, {"subject_area"=>"/People and places", "average_usage"=>[270, 456, 573, 676, 773, 867, 955, 1037, 1120, 1205, 1286, 1363, 1436]}, {"subject_area"=>"/People and places/Geographical locations", "average_usage"=>[263, 456, 571, 673, 776, 866, 955, 1040, 1132, 1217, 1310, 1391, 1454]}, {"subject_area"=>"/Social sciences", "average_usage"=>[289, 475, 593, 703, 805, 902, 990, 1078, 1158, 1250, 1336, 1417, 1482]}, {"subject_area"=>"/Social sciences/Economics", "average_usage"=>[283, 468, 592, 699, 799, 907, 980, 1079, 1187, 1282, 1376, 1479, 1547]}]}
Loading … Spinner
There are currently no alerts