Table 4.

Summary of Meta-analysis Results by Types of Outcome and Exposure

Outcome and exposure measures	Pooled results
	n	HR	95% CI	Heterogeneity
				I2 (%)	p-value
Outcome 1: cardiovascular disease mortality
Activity intensity
1. Total PA	3	0.29	0.18–0.47	0.0	0.547
2. Moderate-to-vigorous PA	4	0.37	0.25–0.55	9.3	0.347
3. Light PA	3	0.62	0.41–0.93	0.0	0.410
4. Sedentary behavior	3	1.89	1.09–3.29	34.7	0.216
Step count
Steps per day	1	―a		―a
Outcome 2: all-cause mortality
	Main analysis
Activity intensity
1. Total PA	6	0.42	0.34–0.53	4.4	0.389
2. Moderate-to-vigorous PA	11	0.43	0.35–0.53	31.8	0.136
3. Light PA	8	0.58	0.43–0.80	50.5	0.049
4. Sedentary behavior	7	1.58	1.19–2.09	61.7	0.007
Step count
Steps per day	4	0.35	0.29–0.42	0.0	0.874
	Additionalb analysis
Activity intensity
1. Total PA	6	0.42	0.34–0.53	4.4	0.389
2. Moderate-to-vigorous PA	6	0.41	0.33–0.51	0.0	0.494
3. Light PA	6	0.54	0.33–0.90	63.6	0.017

^aLess than 2 observations were available.

^bIncluded only studies that reported outcomes for total PA, moderate-to-vigorous intensity PA, and light-intensity PA.

HR, hazard ratio; N, number of observation point; PA, physical activity.