{"id":3835,"date":"2001-06-27T00:00:00","date_gmt":"2001-06-27T04:00:00","guid":{"rendered":"https:\/\/icesontario.wpengine.com\/journal-articles\/relationship-between-annual-volume-of-patients-treated-by-admitting-physician-and-mortality-after-acute-myocardial-infarction\/"},"modified":"2023-06-14T19:21:21","modified_gmt":"2023-06-14T23:21:21","slug":"relationship-between-annual-volume-of-patients-treated-by-admitting-physician-and-mortality-after-acute-myocardial-infarction","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/relationship-between-annual-volume-of-patients-treated-by-admitting-physician-and-mortality-after-acute-myocardial-infarction\/","title":{"rendered":"Relationship between annual volume of patients treated by admitting physician and mortality after acute myocardial infarction"},"content":{"rendered":"<p><strong>Context<\/strong> &#x2014; Acute myocardial infarction (AMI) is a common condition that is treated by physicians with varying levels of clinical experience, but whether the level of experience affects outcome remains uncertain.<\/p>\n<p><strong>Objective<\/strong> &#x2014; To evaluate the relationship between the average annual volume of cases treated by admitting physicians and mortality after AMI.<\/p>\n<p><span class=\"bold\">Design, Setting, and Patients<\/span> &#x2014; Retrospective cohort study using linked administrative databases containing patient admission information for 98 194 patients treated by 5374 physicians between April 1, 1992, and March 31, 1998, in Ontario, Canada.<\/p>\n<p><strong>Main Outcome Measures<\/strong> Mortality risk rates for 30 days and 1 year post-AMI, adjusted by physician volume and patient, physician, and hospital characteristics.<\/p>\n<p><strong>Results<\/strong> &#x2014; The 30-day mortality rate was 13.5% and the 1-year mortality rate was 21.8%. A strong inverse relationship between the average annual volume of AMI cases treated by the admitting physician and mortality after an AMI was observed. The 30-day risk-adjusted mortality rate was 15.3% for physicians who treated 5 or fewer AMI cases per year (lowest quartile) compared with 11.8% for physicians who treated more than 24 AMI cases annually (highest quartile; P&lt;.001). The 1-year risk-adjusted mortality rate was 24.2% for physicians who treated 5 or fewer AMI cases per year (lowest quartile) compared with 19.6% for physicians who treated more than 24 AMI cases annually (highest quartile; P&lt;.001).<\/p>\n<p><strong>Conclusion<\/strong> &#x2014; Patients with AMI who are treated by high-volume admitting physicians are more likely to survive at 30 days and 1 year.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Context &#x2014; Acute myocardial infarction (AMI) is a common condition that is treated by physicians with varying levels of clinical experience, but whether the level of experience affects outcome remains uncertain. Objective &#x2014; To evaluate the relationship between the average annual volume of cases treated by admitting physicians and mortality after AMI. Design, Setting, and [&hellip;]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[40,62],"migration-helper-qa-sample-set":[],"class_list":["post-3835","journal_article","type-journal_article","status-publish","hentry","topic-cardiovascular-disease","topic-health-services-research"],"acf":{"citation":"Tu JV, Austin PC, Chan BT. <em>JAMA<\/em>. 2001; 285(24):3116-22.","source_url":"http:\/\/jamanetwork.com\/journals\/jama\/fullarticle\/193956","ices_scientist":[1385,1197],"site":[6733,6735],"research_program":[6742,6740],"news_release":[],"journal_article":[],"atlas":[],"research_report":[],"infographic":[],"video":[],"downloads":null,"links":null,"sitecore_item_id":"54F48B1C-42D4-4587-957F-0DE67D3C1B28","sitecore_item_name":"Relationship-between-annual-volume-of-patients-treated-by-admitting-physician-and-mortality","sitecore_field_values":"{\n  \"Title\": \"Relationship between annual volume of patients treated by admitting physician and mortality after acute myocardial infarction\",\n  \"Short title\": \"Relationship between annual volume of\",\n  \"Citation\": \"<p>Tu JV, Austin PC, Chan BT. <em>JAMA<\/em>. 2001; 285(24):3116-22.<\/p>\",\n  \"Abstract\": \"<p><strong>Context<\/strong> &mdash; Acute myocardial infarction (AMI) is a common condition that is treated by physicians with varying levels of clinical experience, but whether the level of experience affects outcome remains uncertain.<\/p>n<p><strong>Objective<\/strong> &mdash; To evaluate the relationship between the average annual volume of cases treated by admitting physicians and mortality after AMI.<\/p>n<p><span class=\"bold\">Design, Setting, and Patients<\/span> &mdash; Retrospective cohort study using linked administrative databases containing patient admission information for 98 194 patients treated by 5374 physicians between April 1, 1992, and March 31, 1998, in Ontario, Canada.<\/p>n<p><strong>Main Outcome Measures<\/strong> Mortality risk rates for 30 days and 1 year post-AMI, adjusted by physician volume and patient, physician, and hospital characteristics.<\/p>n<p><strong>Results<\/strong> &mdash; The 30-day mortality rate was 13.5% and the 1-year mortality rate was 21.8%. A strong inverse relationship between the average annual volume of AMI cases treated by the admitting physician and mortality after an AMI was observed. The 30-day risk-adjusted mortality rate was 15.3% for physicians who treated 5 or fewer AMI cases per year (lowest quartile) compared with 11.8% for physicians who treated more than 24 AMI cases annually (highest quartile; P&lt;.001). The 1-year risk-adjusted mortality rate was 24.2% for physicians who treated 5 or fewer AMI cases per year (lowest quartile) compared with 19.6% for physicians who treated more than 24 AMI cases annually (highest quartile; P&lt;.001).<\/p>n<p><strong>Conclusion<\/strong> &mdash; Patients with AMI who are treated by high-volume admitting physicians are more likely to survive at 30 days and 1 year.<\/p>n<p><a href=\"http:\/\/jamanetwork.com\/journals\/jama\/fullarticle\/193956\" title=\"External link opens\">View full text<\/a><\/p>\",\n  \"Keywords\": \"{5718D5DE-813C-4BEF-B244-C1252842E4D5}|{216EF22D-6153-47E4-8EEC-CF06A9D9D954}|{A39C5396-16B7-4369-B0F9-31F6E91E46FC}\",\n  \"Research Programs\": \"{BEC72DE0-BA8C-42B8-ACE5-EE29FFB2CB3B}|{46DF28D2-EDE8-4DF2-8CC0-87CEF464E435}\",\n  \"ICES Locations\": \"{4FCAABBA-14A5-42E6-8F33-BC6C2F1D9908}|{FBE2D1B1-C0BA-423F-8D16-39466B6C1424}\",\n  \"ICES Scientists\": \"{956599EC-5699-41D3-9375-E0B6C25B12D5}|{7D498E8B-5801-4F9E-AC41-11ED50F3C34E}|{4BC11C06-434C-48BA-9CBD-9B58F25C0C79}\",\n  \"Posted Date\": \"20010627T000000\"\n}","previous_url":"https:\/\/www.ices.on.ca\/Publications\/Journal-Articles\/2001\/January\/Relationship-between-annual-volume-of-patients-treated-by-admitting-physician-and-mortality"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ICES | Relationship between annual volume of patients treated by admitting physician and mortality after acute myocardial infarction<\/title>\n<meta name=\"description\" content=\"Context &#x2014; 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