Table 1. Characteristics of the studies included in the meta-analysis.
| First author (year) | Study design | Patients, n | Age, years | Sex, % male | Baseline BMI, kg/m2 | Duration of diabetes, years | Treatment | CPAP, h/night |
|---|---|---|---|---|---|---|---|---|
| Myhill12 | RCT | 44 | 66.1±8.8 | 61.4 | 33.6±5.5 | 10.1 (3.8, 15.3)a | CPAP for 3 months | >5 |
| Dawson13 | Observational | 20 | 59.8±10.2 | 60 | 39.6±8.0 | 9.8±7.7 | CPAP for 3 months | 5.8±1.0 |
| West14 | RCT | 20 | 57.8±10.4 | 100 | 36.6±4.9 | 7.3 | CPAP for 3 months | 3.6±2.8 |
| Babu15 | Observational | 25 | 50.7±9.0 | 64 | 42.7±8.7 | 8.3±6.8 | CPAP for 1–3 months | 4.2±2.9 |
| Harsch16 | Observational | 9 | 56.3±8.2 | 77.8 | 36.7±5.3 | 1 (0.17, 3)a | CPAP (mean 91.4±35.5 days) | 5.8±1.2 |
| Brooks17 | Observational | 10 | 50.8±9.6 | 70 | 42.7±4.3 | NA | CPAP for 4 months | NA |
Values are presented as mean±s.d. except where indicated.
Abbreviations: BMI, body mass index; CPAP, continuous positive airway pressure; NA, not available; RCT, randomised controlled trial.
a
Data are summarised as median (interquartile range).