Brent Strong1, Lynda D Lisabeth1, Mathew Reeves2. 1. From the Undergraduate Professorial Assistantship Program, Honors College (B.S.), and Department of Epidemiology and Biostatistics, College of Human Medicine (M.R.), Michigan State University, East Lansing; and Department of Epidemiology, School of Public Health (L.D.L.), University of Michigan, Ann Arbor. 2. From the Undergraduate Professorial Assistantship Program, Honors College (B.S.), and Department of Epidemiology and Biostatistics, College of Human Medicine (M.R.), Michigan State University, East Lansing; and Department of Epidemiology, School of Public Health (L.D.L.), University of Michigan, Ann Arbor. reevesm@msu.edu.
Abstract
OBJECTIVE: A prior meta-analysis of reports published between 2000 and 2008 found that women were 30% less likely to receive IV recombinant tissue plasminogen activator (rtPA) treatment for stroke than men; we updated this meta-analysis to determine if this sex difference persisted. METHODS: We identified studies that reported sex-specific IV rtPA treatment rates for acute ischemic stroke published between 2008 and 2018. Eligible studies included representative populations of patients with ischemic stroke from hospital-based, registry-based, or administrative data. Random effects odds ratios (ORs) were generated to quantify sex differences. RESULTS: Twenty-four eligible studies were identified during this 10-year period. The summary unadjusted OR based on 17 studies with data on all ischemic stroke patients was 0.87 (95% confidence interval [CI], 0.82-0.93), indicating that women had 13% lower odds of receiving IV rtPA treatment than men. However, substantial between-study variability existed. Lower treatment odds in women were also observed in 7 studies that provided data on the subgroup of patients eligible for IV rtPA treatment, although the summary OR of 0.95 (95% CI, 0.88-1.02) was not statistically significant. Examination of time trends across 33 studies published between 2000 and 2018 found evidence that the sex difference had narrowed in more recent years. CONCLUSIONS: Although there is considerable variability in the findings of individual studies, pooled data from recent studies show that women with acute stroke are less likely to be treated with IV thrombolysis compared with men. However, the size of this difference has narrowed compared to studies published before 2008.
OBJECTIVE: A prior meta-analysis of reports published between 2000 and 2008 found that women were 30% less likely to receive IV recombinant tissue plasminogen activator (rtPA) treatment for stroke than men; we updated this meta-analysis to determine if this sex difference persisted. METHODS: We identified studies that reported sex-specific IV rtPA treatment rates for acute ischemic stroke published between 2008 and 2018. Eligible studies included representative populations of patients with ischemic stroke from hospital-based, registry-based, or administrative data. Random effects odds ratios (ORs) were generated to quantify sex differences. RESULTS: Twenty-four eligible studies were identified during this 10-year period. The summary unadjusted OR based on 17 studies with data on all ischemic strokepatients was 0.87 (95% confidence interval [CI], 0.82-0.93), indicating that women had 13% lower odds of receiving IV rtPA treatment than men. However, substantial between-study variability existed. Lower treatment odds in women were also observed in 7 studies that provided data on the subgroup of patients eligible for IV rtPA treatment, although the summary OR of 0.95 (95% CI, 0.88-1.02) was not statistically significant. Examination of time trends across 33 studies published between 2000 and 2018 found evidence that the sex difference had narrowed in more recent years. CONCLUSIONS: Although there is considerable variability in the findings of individual studies, pooled data from recent studies show that women with acute stroke are less likely to be treated with IV thrombolysis compared with men. However, the size of this difference has narrowed compared to studies published before 2008.
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