Table 2.
Patient-reported outcomes (Epworth Sleepiness Scale and SF-36).
| Control group | CPAP Group | Treatment Effect (95% CI) | p value | |||||
|---|---|---|---|---|---|---|---|---|
| Baseline | 6-month follow-up | 12-month follow-up | Baseline | 6-month follow-up | 12-month follow-up | |||
| ESS | 8.5 (4.5) | 7.6 (4.2) | 7.7 (4.0) | 8.0 (4.5) | 6.2 (3.8) | 6.0 (4.0) | −1.0 (−2.0 to −0.0) | .040 |
| ESS >10, n (%) | 24 (27.9) | 16 (23.5) | 12 (27.9) | 20 (24.1) | 10 (14.7) | 5 (15.2) | – | – |
| SF-36 Scales | ||||||||
| Vitality | 56.0 (19.8) | 58.8 (21.6) | 60.9 (18.1) | 56.0 (20.0) | 63.5 (21.2) | 63.5 (18.8) | 5.7 (1.5 to 9.9) | .008 |
| General Health | 57.9 (20.1) | 57.5 (21.9) | 57.7 (21.2) | 56.5 (21.8) | 61.8 (21.8) | 61.5 (17.8) | 8.2 (3.7 to 12.7) | <.001 |
| Physical Functioning | 69.4 (25.5) | 67.6 (26.4) | 69.6 (23.4) | 73.2 (24.9) | 75.5 (23.1) | 76.4 (21.7) | 5.5 (1.1 to 10.0) | .016 |
| Bodily Pain | 64.7 (23.9) | 61.8 (25.7) | 56.3 (22.3) | 62.3 (25.0) | 65.7 (23.0) | 68.1 (22.8) | 9.7 (3.9 to 15.4) | .001 |
| Emotional Role Functioning | 79.8 (24.7) | 84.4 (21.6) | 84.8 (24.6) | 81.3 (24.6) | 84.8 (21.4) | 83.1 (23.8) | −0.4 (−6.5to 5.8) | .904 |
| Physical Role Functioning | 72.5 (26.1) | 70.2 (25.8) | 76.2 (23.5) | 73.8 (26.0) | 73.5 (27.2) | 73.1 (30.1) | 1.1 (−5.0 to 7.2) | .718 |
| Social Role Functioning | 80.9 (22.5) | 80.9 (22.7) | 86.3 (20.6) | 79.7 (27.0) | 81.5 (27.0) | 83.0 (25.6) | 1.0 (−3.9 to 5.9) | .682 |
| Mental Health | 75.7 (16.6) | 76.9 (16.2) | 80.9 (17.9) | 74.8 (19.8) | 77.7 (18.0) | 76.2 (14.8) | 1.2 (−2.6 to 5.0) | .541 |
| Physical Health Summary Score | 44.3 (9.6) | 42.7 (10.1) | 42.9 (8.7) | 45.2 (9.4) | 45.6 (9.7) | 46.2 (9.6) | 3.4 (1.4 to 5.3) | <.001 |
| Mental Health Summary Score | 50.3 (9.6) | 52.2 (9.7) | 54.0 (11.5) | 49.7 (12.0) | 52.2 (11.3) | 51.3 (9.7) | 0.2 (−2.1 to 2.4) | .869 |
Abbreviations: CI, confidence interval; ESS, Epworth Sleepiness Scale; SF-36, Medical Outcomes Study Short Form 36 Health Survey.
aData presented as mean (SD) unless otherwise specified. N = 86 subjects in the control group and N = 83 subjects in the CPAP group had one or more data points and were included in the analysis of ESS. N = 85 in the control group and N = 81 in the CPAP group had one or more data points and were included in the analysis of the various SF-36 scales.