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Table 1 Power Calculation for Detecting Associations Between Air Pollution Categories (Q4 vs. Q1- 3) and Primary Outcomes

From: Cumulative exposure to air pollution and long term outcomes after first acute myocardial infarction: A population-based cohort study. Objectives and methodology

 

Least Extreme Detectable Hazard Ratio

Power

Recurrent Coronary Event

Heart Failure

Stroke

Cardiac Mortality

All-Cause Mortality

80%

1.21

1.37

1.47

1.40

1.35

85%

1.23

1.40

1.50

1.43

1.37

90%

1.25

1.43

1.55

1.47

1.40