Table 3.
Predictors of a 3-Point Improvement in PSQI from Baseline to 12 or 52 weeks
| Total | 12-week responders | 52-week responders | |||
|---|---|---|---|---|---|
| Predictor | N | N (%) | OR (95% CI) | N (%) | OR (95% CI) |
| Treatment | |||||
| Yoga | 127 | 44/125 (35.2) | 1.63 (0.82, 3.25) | 44/108 (40.7) | 1.24 (0.64, 2.41) |
| PT | 129 | 36/102 (35.3) | 1.64 (0.80, 3.33) | 37/91 (40.7) | 1.23 (0.62, 2.46) |
| Education | 64 | 15/60 (25.0) | Ref | 20/56 (35.7) | Ref |
| Sex | |||||
| Female | 204 | 60/189 (31.8) | 0.84 (0.50, 1.40) | 77/179 (43.0) | 1.64 (0.93, 2.88) |
| Male | 116 | 35/98 (35.7) | Ref | 24/76 (31.6) | Ref |
| Race | |||||
| White | 58 | 18/54 (33.3) | 1.01 (0.54, 1.90) | 14/51 (27.5) | 0.51 (0.26, 1.00) |
| Non-white | 262 | 77/233 (33.1) | Ref | 87/204 (42.7) | Ref |
| Age group | |||||
| ≥ 34 | 58 | 17/50 (34.0) | Ref | 22/44 (50.0) | Ref |
| 35–44 | 67 | 23/59 (39.0) | 1.24 (0.57, 2.72) | 24/51 (47.1) | 0.89 (0.40, 1.99) |
| 45–54 | 122 | 34/110 (30.9) | 0.87 (0.43, 1.77) | 30/98 (30.6) | 0.44 (0.21, 0.92) |
| ≥ 55 | 73 | 21/68 (30.9) | 0.87 (0.40, 1.89) | 25/62 (40.3) | 0.68 (0.31, 1.47) |
| Education level | |||||
| < High school | 126 | 36/111 (32.4) | Ref | 60/100 (39.2) | Ref |
| ≥ High school | 191 | 57/173 (33.0) | 1.02 (0.62, 1.70) | 40/153 (40.0) | 0.97 (0.58, 1.62) |
| Current smoker | |||||
| No | 223 | 69/202 (34.2) | Ref | 76/183 (41.5) | Ref |
| Yes | 97 | 26/85 (30.6) | 0.85 (0.49, 1.47) | 25/72 (34.7) | 0.75 (0.43, 1.32) |
| Employed | |||||
| No | 176 | 49/157 (31.2) | Ref | 48/144 (33.3) | Ref |
| Yes | 144 | 46/130 (35.4) | 1.21 (0.74, 1.98) | 53/111 (47.8) | 1.83 (1.10, 3.04) |
| Depression | |||||
| No | 242 | 70/219 (32.0) | Ref | 84/195 (43.1) | Ref |
| Yes | 66 | 22/57 (38.6) | 1.34 (0.73, 2.45) | 14/51 (27.5) | 0.50 (0.25, 0.98) |
| COPD | |||||
| No | 239 | 73/218 (33.5) | Ref | 83/186 (44.6) | Ref |
| Yes | 79 | 20/67 (29.9) | 0.85 (0.47, 1.53) | 17/67 (25.4) | 0.42 (0.23, 0.79) |
| Pain improvement, 6 weeks | |||||
| < 10% | 77 | 20/75 (26.7) | Ref | 23/69 (33.3) | Ref |
| 10–30% | 136 | 31/129 (24.0) | 0.87 (0.45, 1.67) | 46/112 (41.1) | 1.39 (0.75, 2.61) |
| > 30% | 67 | 37/66 (56.1) | 3.51 (1.73, 7.11) | 26/59 (44.1) | 1.58 (0.77, 3.23) |
| RMDQ improvement, 6 weeks | |||||
| < 10% | 121 | 28/116 (24.1) | Ref | 33/103 (32.0) | Ref |
| 10–30% | 73 | 26/70 (37.1) | 1.86 (0.97, 3.54) | 23/60 (38.3) | 1.32 (0.68, 2.56) |
| > 30% | 88 | 35/86 (40.7) | 2.16 (1.18, 3.95) | 40/79 (50.6) | 2.18 (1.19, 3.98) |
OR, odds ratio; COPD, chronic obstructive pulmonary disease; RMDQ, Roland Morris Disability Questionnaire