Table 4.

Adjusted odds ratios stratified by age for proton pump inhibitor use vs. non-use and myocardial infarction recurrence among clopidogrel users at 12 months post cohort entry

Age group, years	Number of cases/controls	OR (95% CI)
		PPI use vs. non-use	H2RA use vs. non-use (negative control)
18–64	342/3980	0.96 (0.80–1.14)	0.71 (0.58–0.88)
65–79	1048/5065	0.97 (0.83–1.14)	1.07 (0.89–1.28)
80–89	767/3702	1.26 (1.05–1.51)	1.01 (0.81–1.25)

CI confidence interval, H2RA H2 receptor antagonist, OR odds ratio, PPI proton pump inhibitor