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Table 4 Prevalence of hemorrhagic events

From: Comparative effect of clopidogrel and aspirin versus aspirin alone on laboratory parameters: a retrospective, observational, cohort study

Hemorrhagic event Clopidogrel plus aspirin (n = 159) Aspirin alone (n = 834) Propensity adjustment Multivariate model
  no. (%) Relative risk (95% CI) P Relative risk (95% CI) P
Intracranial hemorrhage 5 (3.14%) 17 (2.04%) 1.71 (0.99, 2.94) 0.0507 1.23 (0.76, 2.01) 0.4009
Gastrointestinal bleeding 5 (3.14%) 6 (0.72%) 2.61 (1.18, 5.80) 0.0184 2.06 (1.02, 4.13) 0.0430
  1. Abbreviation: CI confidence interval.