Figure 2. Meta‐analysis of the relative risk of incident acute myocardial infarction per 10‐µg/m3 increase in long‐term fine particulate matter <2.5 µm in diameter exposure, combining the effects of 11 studies. 12 .
CPRD indicates Clinical Practice Research Datalink; ESCAPE, European Study of Cohorts for Air Pollution Effects; HR, hazard ratio; ONPHEC, Ontario Population Health and Environment Cohort; REGARDS, Reasons for Geographic and Racial Differences in Stroke; and WHI, Women's Health Initiative.