3. Results of univariate meta‐regression analysis for total mortality.

Explanatory variable (n trials)	Exp(slope)*	95% Confidence interval Univariate P value	Proportion of variation explained	Interpretation
Case mix (% MI patients) (n = 41)	RR = 0.998	0.996 to 1.000 P = 0.93	0%	No evidence that risk ratio is associated with case mix
Dose of exercise (number of weeks of exercise training x average number of sessions/week x average duration of session in min) (n = 29)	RR = 1.000	1.000 to 1.000 P = 0.74	0%	No evidence that risk ratio is associated with increased dose of exercise
Type of CR (exercise only vs comprehensive CR) (n = 42)	RR = 1.084	0.909 to 1.292 P = 1.00	0%	No evidence that risk ratio is associated with type of CR
Duration of follow‐up (months) (n = 41)	RR = 1.001	1.000 to 1.002 P = 1.00	0%	No evidence that risk ratio is associated with duration of follow‐up
Year of publication (pre 1995 vs post 1995) (n = 42)	RR = 1.006	0.999 to 1.013 P = 1.00	0%	No evidence that risk ratio is associated with year of publication
Setting (centre vs home) (n = 42)	RR = 1.012	0.822 to 1.246 P = 1.00	0%	No evidence that risk ratio is associated with setting
Risk of bias (low risk in ≥ 5 items v < 5 items) (n = 42)	RR = 1.033	0.985 to 1.083 P = 1.00	0%	No evidence that risk ratio is associated with risk of bias
Study location (n = 42)	RR = 1.071	0.915 to 1.254 P = 1.00	0%	No evidence that risk ratio is associated with study location
Sample size (n = 42)	RR = 1.192	0.732 to 1.940 P = 1.00	0%	No evidence that risk ratio is associated with sample size

P‐values adjusted for multiple testing