a Effect of telemonitoring versus usual care on all-cause hospital admission in patients with chronic heart failure. CI, confidence interval; M-H, Mantel–Haenszel. b Effect of telemonitoring versus usual care on cardiac hospital admission in patients with chronic heart failure. CI, confidence interval; M-H, Mantel–Haenszel. c Effect of telephone support interventions versus usual care on all-cause hospital admission in patients with chronic heart failure. CI, confidence interval; M-H, Mantel–Haenszel. .d Effect of telephone support interventions versus usual care on cardiac hospitalization in patients with chronic heart failure. CI, confidence interval; M-H, Mantel–Haenszel. e Effect of telemonitoring versus usual care on all-cause mortality in patients with chronic heart failure. CI, confidence interval; M-H, Mantel–Haenszel. f Effect of telemonitoring versus usual care on cardiac mortality in patients with chronic heart failure. CI, confidence interval; M-H, Mantel–Haenszel. g Effect of telephone versus usual care on all cause of mortality in patients with chronic heart failure. CI, confidence interval; M-H, Mantel–Haenszel. h Effect of telephone versus usual care on cardiac mortality in patients with chronic heart failure. CI, confidence interval; M-H, Mantel–Haenszel. i Effect of interventions versus usual care on length of hospital stay in patients with chronic heart failure. M-H = Mantel–Haenszel risk ratio. Data are from full peer-reviewed publications only and reflect the most recent meta-analysis of telemedicine in heart failure