Table 1.
Characteristics of studies included in this analysis.
| Study | Country | Sample Size | Mean Age, y | Male, % | BMI, mean (SD), kg/m2 | Study Type | Follow-up Duration, mo | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| CPAP | CO | CPAP | CO | CPAP | CO | CPAP | CO | ||||
| Capodanno et al20, 2014 | Italy | 17 | 112 | 70 | 68 | 77 | 81 | 29 | 27 | PC | 36 |
| Cassar et al26, 2007 | USA | 175 | 196 | 64 | 64 | 85 | 90 | 35.4 (7.1) | 33.0 (5.6) | RC | 60 |
| Huang et al15, 2015 | China | 37 | 36 | 63 | 62 | 87 | 78 | 27.5 (2.6) | 27.9 (3.6) | RCT | 36 (median) |
| Huang et al28, 2016 | China | 37 | 33 | 62 | 62 | 80 | 87 | 23.1 (1.1) | 22.9 (1.0) | RCT | 12 |
| Lee et al21, 2017 | Taiwan | 9 | 27 | 62 | 62 | 89 | 89 | 29.7 (7.3) | 29.7 (7.3) | PC | 12 |
| McEvoy et al13, 2016 | Australia et al | 1346 | 1341 | 61 | 61 | 81 | 81 | 29.0 (15.9) | 29.6 (16.4) | RCT | 44.4 (median) |
| Milleron et al22, 2004 | France | 25 | 29 | 58 | 57 | 96 | 100 | 28.4 (4.2) | 28.2 (3.4) | PC | 86 |
| Nakashima et al23, 2015 | Japan | 56 | 39 | 71 | 71 | 77 | 77 | NR | NR | PC | 50 (median) |
| Peker et al29, 2016 | Sweden et al | 122 | 122 | 66 | 67 | 82 | 86 | 28.4 (3.8) | 28.5 (3.5) | RCT | 57 (median) |
| Peker et al14, 2020 | Sweden et al | 86 | 85 | 65 | 65 | 79 | 87 | 28.4 (4.0) | 28.7 (3.6) | RCT | 56.7 (median) |
| Sánchez-de-la-Torre et al16, 2019 | Spain | 629 | 626 | 60 | 61 | 84 | 85 | 29.6 (4.7) | 29.4 (4.3) | RCT | 40.2 (median) |
| Wu et al27, 2015 | China | 128 | 167 | 54 | 56 | 83 | 86 | 30 | 30 | RC | 58 (median) |
| Yang et al24, 2013 | China | 22 | 22 | 60 | 61 | 91 | 91 | 26.7 (2.9) | 27.3 (2.3) | PC | 3 |
| Zhao et al25, 2012 | China | 24 | 24 | 69 | 59 | 88 | 92 | 27.0 (2.8) | 28.4 (2.9) | PC | 1 |
BMI = body mass index, CO = control, CPAP = continuous positive airway pressure, PC = prospective cohort, RC = retrospective cohort, RCT = randomized controlled trial.