Table 4.

Univariate meta-regression results

	P-value
	All-cause mortality	HRQoL
Mean left ventricular ejection fraction (%)	0.54	0.19
Mean age (years)	0.76	0.62
Sex (% male)	0.56	0.40
Type of rehabilitation (exercise only vs. comprehensive)	0.65	0.59
Type of exercise (aerobic training alone vs. aerobic plus resistance training)	0.75	0.50
Exercise dose (number of weeks × number of sessions/week × average duration of session in hours)	0.66	0.14
Exercise setting (hospital only, home only, both hospital and home)	0.65	0.04
Duration of follow-up (months)	0.93	0.11
Publication date (pre-2000 vs. 2000 or later)	0.89	0.47
Risk of bias
Random code generation	0.90	0.11
Random code concealment	0.93	0.27
Outcome blinding	0.96	0.74
Intention-to-treat analysis	0.88	0.53