Blasco et al.18; Spain | RCT | 61 | 163 | n = 203 IG = 102 CG = 101 | 12 months | IG: telemedicine + lifestyle counseling + usual care CG: lifestyle counseling + usual care | 1. Patients were not blinded 2. Sample size was relatively small 3. Duration of follow-up was only 1 year |
Park et al.19; | RCT | 59.2 | 68 | n = 90 | 30 days | IG1 : TM reminders + TM | 1. Sample size was small |
USA | | | | IG1 = 30 | | education | 2. Follow-up period was relatively |
| | | | IG2 = 30 | | IG2: TM education | short (30 days) |
| | | | CG = 30 | | CG:no TM | 3. Study used self-reported and MEMS data collection, which have inherent limitations |
Quilici et al.20; | RCT | 64 | 187 | n = 546 | 30 days | IG: SMS + standard care CG: standard care | Self-reported data were used as a measuring method |
France | | | | | | | |
Varnfield et al.13; Australia | RCT | 55.5 | 82 | n = 120 | 6 months | IG: baseline to 6 weeks: health and exercise monitoring + delivery of motivational and educational materials via TM; 6 weeks to 6 months: patients were encouraged to maintain lifestyle changes CG: traditional, center-based CR | 1. Sample size was too small 2. A considerable number of patients dropped out 3. Study only focused on patients referred for CR after myocardial infarction and did not address all patients eligible for CR |
Chow et al.14; Australia | RCT | 58 | 582 | n = 710 | 6 months | IG: four TMs per week for 6 months + usual care CG: usual care | 1. Study was conducted in a single large tertiary referral center hospital, and thus the results may not be generalizable |
| | | | | | | 2. The study delivered the messages in English and excluded non-English-speaking patients |
| | | | | | | 3. Some outcomes were measured using self-report questionnaire |
| | | | | | | 4. No cost-effectiveness analysis was carried out |
Pfaeffli Dale | RCT | 59.5 | 100 | n = 123 | 6 months | IG: daily SMS TMs + a supporting website + | 1. Outcome assessors were not blinded |
et al.16; New Zealand | | | | | | usual care CG: usual care | 2. Primary outcome measure was self-reported, so recall bias is possible |
| | | | | | | 3. Findings may not be transferable to other populations because the sample was predominantly New Zealand European |
Martin | RCT; | 58 | 26 | n = 48 | 5 weeks | IG: mHealth intervention | 1. Study had limited size and scope |
et al.16; | pilot | | | | | with tracking and texting | 2. Generalizability remains uncertain |
USA | trial | | | | | components | 3. Study did not use human |
| | | | | | CG: usual care | coaches as part of the intervention |
Frederix et al.17; Belgium | RCT | 61 | 114 | n = 140 | 6 months | IG: telerehabilitation program + conventional, center-based CR CG: conventional, center-based CR | Study had a generalizability problem |