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{"title"=>"Trends in Asthma-Related Direct Medical Costs from 2002 to 2007 in British Columbia, Canada: A Population Based-Cohort Study", "type"=>"journal", "authors"=>[{"first_name"=>"Pierrick", "last_name"=>"Bedouch", "scopus_author_id"=>"6603132120"}, {"first_name"=>"Carlo A.", "last_name"=>"Marra", "scopus_author_id"=>"7102675590"}, {"first_name"=>"J. Mark", "last_name"=>"FitzGerald", "scopus_author_id"=>"7402450845"}, {"first_name"=>"Larry D.", "last_name"=>"Lynd", "scopus_author_id"=>"7006325179"}, {"first_name"=>"Mohsen", "last_name"=>"Sadatsafavi", "scopus_author_id"=>"21733729500"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"pui"=>"366234440", "sgr"=>"84870787370", "issn"=>"19326203", "pmid"=>"23227222", "scopus"=>"2-s2.0-84870787370", "doi"=>"10.1371/journal.pone.0050949", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)"}, "id"=>"4ff27a85-8dfe-326c-94b9-dbc3fb1ac10b", "abstract"=>"BACKGROUND: Asthma-related health resource use and costs may be influenced by increasing asthma prevalence, changes to asthma management guidelines, and new medications over the last decade. The objective of this work was to analyze direct asthma-related medical costs, and trends in total and per-patient costs of hospitalizations, physician visits, and medications.\\n\\nMETHODS: A cohort of asthma patients from British Columbia (BC), Canada, was created. Asthma patients were identified using a validated case definition. Costs for hospitalizations, physician visits, and medications were calculated from billing records (in 2008 Canadian dollars). Trends in total and per-patient costs over the study period were analyzed using Generalized Linear Models.\\n\\nRESULTS: 398,235 patients satisfied the asthma case definition (mid-point prevalence 8.0%). Patients consumed $315.9 million (M) in direct asthma-related health resources between 2002 and 2007. Hospitalizations, physician visits, and medication costs accounted for 16.0%, 15.7% and 68.2% of total costs, respectively. Cost of asthma increased from $49.4 M in 2002 to $54.7 M in 2007. Total annual costs attributable to hospitalizations and physician visits decreased (-39.8% and -25.5%, respectively; p<0.001), while medication costs increased (+38.7%; p<0.001).\\n\\nINTERPRETATION: This population-based analysis shows that the total direct cost of asthma in BC has increased since 2002, mainly due to a rise in asthma prevalence and cost of medication. Combination therapy with inhaled corticosteroids/long-acting beta-agonists has become a significant component of the cost of asthma. Although billing records capture only a fraction of the true burden of asthma, the simultaneous increase in medication costs and reductions in hospitalization and physician visit costs provides valuable insight for policy makers into the shifts in asthma-related resource use.", "link"=>"http://www.mendeley.com/research/trends-asthmarelated-direct-medical-costs-2002-2007-british-columbia-canada-population-basedcohort-s", "reader_count"=>34, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Professor > Associate Professor"=>1, "Researcher"=>6, "Student > Ph. D. Student"=>9, "Student > Master"=>8, "Other"=>2, "Student > Bachelor"=>4, "Lecturer"=>1, "Professor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Professor > Associate Professor"=>1, "Researcher"=>6, "Student > Ph. D. Student"=>9, "Student > Master"=>8, "Other"=>2, "Student > Bachelor"=>4, "Lecturer"=>1, "Professor"=>1}, "reader_count_by_subject_area"=>{"Engineering"=>2, "Unspecified"=>4, "Environmental Science"=>2, "Biochemistry, Genetics and Molecular Biology"=>2, "Nursing and Health Professions"=>4, "Medicine and Dentistry"=>10, "Agricultural and Biological Sciences"=>2, "Pharmacology, Toxicology and Pharmaceutical Science"=>2, "Psychology"=>2, "Social Sciences"=>1, "Economics, Econometrics and Finance"=>3}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>2}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>10}, "Social Sciences"=>{"Social Sciences"=>1}, "Psychology"=>{"Psychology"=>2}, "Economics, Econometrics and Finance"=>{"Economics, Econometrics and Finance"=>3}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>2}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>4}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>2}, "Unspecified"=>{"Unspecified"=>4}, "Environmental Science"=>{"Environmental Science"=>2}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>2}}, "reader_count_by_country"=>{"Canada"=>1, "France"=>1, "India"=>1}, "group_count"=>0}

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• {"id"=>"277276786948194304", "text"=>"#PLOSONE:Check out our new paper: Trends in Asthma-Related Direct Medical Costs from 2002 to 2007 in British Col... http://t.co/nJGqGSVH", "created_at"=>"2012-12-08T05:01:52Z", "user"=>"ldlynd", "user_name"=>"Larry Lynd", "user_profile_image"=>"http://a0.twimg.com/profile_images/2285689909/rrd6zfs1gcb21mr3tgiz_normal.jpeg"}
• {"id"=>"279762889978556416", "text"=>"Trends in Asthma-Related Direct Medical Costs from 2002 to 2007 in British Columbia, Canada. Open access.\nhttp://t.co/cV1LlyWv", "created_at"=>"2012-12-15T01:40:45Z", "user"=>"Interasma", "user_name"=>"Interasma", "user_profile_image"=>"http://a0.twimg.com/profile_images/1505274438/interasmalogo_normal.jpg"}
• {"id"=>"279762890012119040", "text"=>"Trends in Asthma-Related Direct Medical Costs from 2002 to 2007 in British Columbia, Canada. Open access.\nhttp://t.co/lIGVI9bd", "created_at"=>"2012-12-15T01:40:45Z", "user"=>"SocLatAlergia", "user_name"=>"SLAAI", "user_profile_image"=>"http://a0.twimg.com/profile_images/1539714735/logoslaai1_normal.jpg"}
• {"id"=>"279762890028883968", "text"=>"Trends in Asthma-Related Direct Medical Costs from 2002 to 2007 in British Columbia, Canada. Open access.\nhttp://t.co/Z3GLTSL6", "created_at"=>"2012-12-15T01:40:45Z", "user"=>"JuanCIvancevich", "user_name"=>"Juan C. Ivancevich", "user_profile_image"=>"http://a0.twimg.com/profile_images/2585619075/kd60uspaf2ogwsykt00r_normal.jpeg"}
• {"id"=>"279762890087604224", "text"=>"Trends in Asthma-Related Direct Medical Costs from 2002 to 2007 in British Columbia, Canada. Open access.\nhttp://t.co/A9VqHrv7", "created_at"=>"2012-12-15T01:40:45Z", "user"=>"FUNDACIONLIBRA", "user_name"=>"Fundación Libra", "user_profile_image"=>"http://a0.twimg.com/profile_images/1130674087/logo_normal.jpg"}
• {"id"=>"279922694965841920", "text"=>"Interpretation\nThis population-based analysis shows that the total direct cost of asthma in BC has increased... http://t.co/RDdkl0Yk", "created_at"=>"2012-12-15T12:15:45Z", "user"=>"sergiobarbaecua", "user_name"=>"Sergio Barba", "user_profile_image"=>"http://a0.twimg.com/sticky/default_profile_images/default_profile_6_normal.png"}
• {"id"=>"289459534643224577", "text"=>"Interested in asthma-related medical cost trends? Read the article from #UBCCORE and collaborators: http://t.co/ZvvueID7", "created_at"=>"2013-01-10T19:51:45Z", "user"=>"CORE_UBC", "user_name"=>"CORE UBC", "user_profile_image"=>"http://a0.twimg.com/profile_images/2751371778/96eb2aee58950248cc9120b744aa428a_normal.png"}
• {"id"=>"294667591803359232", "text"=>"Trends in Asthma-Related Direct Medical Costs from 2002 to 2007 in British Columbia, Canada: A Population Bas... http://t.co/nJGqGSVH", "created_at"=>"2013-01-25T04:46:43Z", "user"=>"ldlynd", "user_name"=>"Larry Lynd", "user_profile_image"=>"http://a0.twimg.com/profile_images/2285689909/rrd6zfs1gcb21mr3tgiz_normal.jpeg"}

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Figshare

• {"files"=>["https://ndownloader.figshare.com/files/530587"], "description"=>"<p>Trends over 2002–2007 in asthma control.</p>", "links"=>[], "tags"=>["asthma"], "article_id"=>201088, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0050949.g002", "stats"=>{"downloads"=>1, "page_views"=>2, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Trends_over_2002_8211_2007_in_asthma_control_/201088", "title"=>"Trends over 2002–2007 in asthma control.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-12-05 00:18:08"}
• {"files"=>["https://ndownloader.figshare.com/files/530921"], "description"=>"*<p>\n <i>Including Emergency Department visits;</i></p>†<p>\n <i>Per 1,000 patients.</i></p>", "links"=>[], "tags"=>["public health and epidemiology", "respiratory medicine", "Non-clinical medicine"], "article_id"=>201415, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0050949.t002", "stats"=>{"downloads"=>1, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Health_care_resource_use_total_and_per_patient_2002_8211_2007_/201415", "title"=>"Health care resource use, total and per patient (2002–2007).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2012-12-05 00:23:35"}
• {"files"=>["https://ndownloader.figshare.com/files/530884"], "description"=>"*<p>Narrow definition: hospitalizations in which asthma was coded as the ‘most responsible’ diagnosis (i.e., ICD-9 493.x or ICD-10 J45, J46), physician visits that were coded as asthma according to the ICD-9 code 493.x, short list of asthma-related medications;</p>†<p>Broad definition: all hospitalizations in which asthma was indicated among the discharge diagnoses, all physician visits for an asthma-related diagnosis, long list of asthma-related medications;</p>‡<p>Patient-years with active asthma are the years in which the patient has consumed at least one asthma-related health care resource. (hospitalization, physician visit or asthma-related medication).</p>", "links"=>[], "tags"=>["costs", "analyses", "canadian"], "article_id"=>201385, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0050949.t003", "stats"=>{"downloads"=>1, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Total_annual_costs_and_annual_costs_per_patient_results_of_the_sensitivity_analyses_2008_Canadian_dollars_/201385", "title"=>"Total annual costs and annual costs per patient: results of the sensitivity analyses (2008 Canadian dollars).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2012-12-05 00:23:05"}
• {"files"=>["https://ndownloader.figshare.com/files/530837"], "description"=>"<p>Total (left) and per-patient (right) cost of asthma according to the level of control from 2002 to 2007 (2008 Canadian dollars)* <i>for 293,055 patients over 14 years old at the index date.</i></p>", "links"=>[], "tags"=>["per-patient", "asthma", "2002", "2007", "canadian", "patients", "14", "years"], "article_id"=>201324, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0050949.g005", "stats"=>{"downloads"=>1, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Total_left_and_per_patient_right_cost_of_asthma_according_to_the_level_of_control_from_2002_to_2007_2008_Canadian_dollars_for_293_055_patients_over_14_years_old_at_the_index_date_/201324", "title"=>"Total (left) and per-patient (right) cost of asthma according to the level of control from 2002 to 2007 (2008 Canadian dollars)* <i>for 293,055 patients over 14 years old at the index date.</i>", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-12-05 00:22:04"}
• {"files"=>["https://ndownloader.figshare.com/files/285668", "https://ndownloader.figshare.com/files/285732", "https://ndownloader.figshare.com/files/285768"], "description"=>"<div><h3>Background</h3><p>Asthma-related health resource use and costs may be influenced by increasing asthma prevalence, changes to asthma management guidelines, and new medications over the last decade. The objective of this work was to analyze direct asthma-related medical costs, and trends in total and per-patient costs of hospitalizations, physician visits, and medications.</p> <h3>Methods</h3><p>A cohort of asthma patients from British Columbia (BC), Canada, was created. Asthma patients were identified using a validated case definition. Costs for hospitalizations, physician visits, and medications were calculated from billing records (in 2008 Canadian dollars). Trends in total and per-patient costs over the study period were analyzed using Generalized Linear Models.</p> <h3>Results</h3><p>398,235 patients satisfied the asthma case definition (mid-point prevalence 8.0%). Patients consumed $315.9 million (M) in direct asthma-related health resources between 2002 and 2007. Hospitalizations, physician visits, and medication costs accounted for 16.0%, 15.7% and 68.2% of total costs, respectively. Cost of asthma increased from $49.4 M in 2002 to $54.7 M in 2007. Total annual costs attributable to hospitalizations and physician visits decreased (−39.8% and −25.5%, respectively; p<0.001), while medication costs increased (+38.7%; p<0.001).</p> <h3>Interpretation</h3><p>This population-based analysis shows that the total direct cost of asthma in BC has increased since 2002, mainly due to a rise in asthma prevalence and cost of medication. Combination therapy with inhaled corticosteroids/long-acting beta-agonists has become a significant component of the cost of asthma. Although billing records capture only a fraction of the true burden of asthma, the simultaneous increase in medication costs and reductions in hospitalization and physician visit costs provides valuable insight for policy makers into the shifts in asthma-related resource use.</p> </div>", "links"=>[], "tags"=>["trends", "asthma-related", "costs", "2002", "2007", "british", "based-cohort", "study"], "article_id"=>116312, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0050949.s001", "https://dx.doi.org/10.1371/journal.pone.0050949.s002", "https://dx.doi.org/10.1371/journal.pone.0050949.s003"], "stats"=>{"downloads"=>32, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Trends_in_Asthma_Related_Direct_Medical_Costs_from_2002_to_2007_in_British_Columbia_Canada_A_Population_Based_Cohort_Study__/116312", "title"=>"Trends in Asthma-Related Direct Medical Costs from 2002 to 2007 in British Columbia, Canada: A Population Based-Cohort Study", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2012-12-05 01:45:12"}
• {"files"=>["https://ndownloader.figshare.com/files/530772"], "description"=>"<p>\n <i>ICS: inhaled corticosteroids, SABA: short-acting beta-agonists, LABA: long-acting beta-agonists, ICS/LABA: inhaled corticosteroids and long-acting beta-agonists in combination, LTRA: leukotriene receptor antagonists.</i></p>", "links"=>[], "tags"=>["asthma-related", "medications", "canadian"], "article_id"=>201273, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0050949.g004", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Annual_cost_of_asthma_related_medications_according_to_year_and_drug_category_2008_Canadian_dollars_/201273", "title"=>"Annual cost of asthma-related medications according to year and drug category (2008 Canadian dollars).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-12-05 00:21:13"}
• {"files"=>["https://ndownloader.figshare.com/files/530679"], "description"=>"<p>\n <i>* P-value <0.001; † Number of patients for each year of data; ‡Including Emergency Department visits.</i></p>", "links"=>[], "tags"=>["costs", "asthma", "canadian"], "article_id"=>201178, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0050949.g003", "stats"=>{"downloads"=>0, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Trends_over_2002_8211_2007_in_annual_costs_of_asthma_and_cost_component_2008_Canadian_dollars_/201178", "title"=>"Trends over 2002–2007 in annual costs of asthma and cost component (2008 Canadian dollars).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-12-05 00:19:38"}
• {"files"=>["https://ndownloader.figshare.com/files/530530"], "description"=>"<p>\n <i>* Population = 1,977,199 patient-years of follow-up Dashes lines indicate that 80% of the cumulative percentage of population is responsible for 30.5% of the cumulative percentage of per-patient costs.</i></p>", "links"=>[], "tags"=>["per-patient", "costs", "cumulative", "canadian"], "article_id"=>201019, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0050949.g001", "stats"=>{"downloads"=>1, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Cumulative_distribution_of_per_patient_costs_according_to_the_annual_per_patient_cost_right_vertical_axis_and_the_cumulative_percentage_of_per_patient_costs_left_vertical_axis_2008_Canadian_dollars_/201019", "title"=>"Cumulative distribution of per-patient costs according to the annual per-patient cost (right vertical axis) and the cumulative percentage of per-patient costs (left vertical axis) (2008 Canadian dollars).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2012-12-05 00:16:59"}
• {"files"=>["https://ndownloader.figshare.com/files/530948"], "description"=>"<p>Age, sex, and asthma prevalence of the study population (N = 398,235).</p>", "links"=>[], "tags"=>["asthma", "prevalence"], "article_id"=>201439, "categories"=>["Medicine", "Biotechnology"], "users"=>["Pierrick Bedouch", "Carlo A. Marra", "J. Mark FitzGerald", "Larry D. Lynd", "Mohsen Sadatsafavi"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0050949.t001", "stats"=>{"downloads"=>0, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Age_sex_and_asthma_prevalence_of_the_study_population_N_8202_8202_398_235_/201439", "title"=>"Age, sex, and asthma prevalence of the study population (N = 398,235).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2012-12-05 00:23:59"}

PMC Usage Stats | Further Information

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Relative Metric

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F1000Prime