TABLE 5.
Average self-reported sleep quality, duration, and disruption, by nocturnal frequency of bladder symptomsa
| Frequency of nocturnal voiding and incontinence episodes (regardless of association with urgency) | |||||
| 0 episodes/night | 0.01–0.99 episodes/night | 1.00–1.99 episodes/night | ≥2.00 episodes/night | P value for trendb | |
| Pittsburgh Sleep Quality Index global sleep quality score | 7.3 (6.0–8.6) | 7.3 (6.0–8.6) | 7.0 (5.7–8.3) | 7.7 (6.5–9.0) | .46 |
| Total sleep time in hours (by sleep diary) | 6.9 (6.3–7.5) | 6.7 (6.1–7.3) | 7.2 (6.6–77) | 7.0 (6.4–7.5) | .23 |
| Wake after sleep-onset percentage (by sleep diary)b | 2.5 (−0.5–5.6) | 3.7 (0.6–6.9) | 2.8 (−0.3–5.9) | 6.7 (3.9–9.6) | .01 |
| Frequency of moderate-to-severe nocturnal urgency sensations (regardless of voiding or incontinence) | |||||
| 0 episodes/night | 0.01–0.99 episodes/night | 1.00–1.99 episodes/night | ≥2.00 episodes/night | P value for trendb | |
| Pittsburgh Sleep Quality Index global sleep quality score | 7.0 (5.8–8.3) | 7.4 (6.2–8.7) | 7.5 (6.2–8.8) | 8.2 (6.8–9.7) | .11 |
| Total sleep time in hours (by sleep diary) | 6.9 (6.4–7.5) | 6.8 (6.3–7.4) | 7.0 (6.4–7.5) | 7.1 (6.4–7.7) | .37 |
| Wake after sleep onset percentage (by sleep diary)b | 3.2 (0.4–6.0) | 4.3 (1.4–7.2) | 6.6 (3.6–9.5) | 5.3 (1.8–8.8) | .06 |
Data are presented as least square mean estimates (95% confidence intervals) derived from separate repeated analysis of covariance mixed models, using data from both baseline and 12 weeks. All models adjusted for by intervention group, time (baseline and 12 weeks), interaction with time and intervention, age, body mass index, menopausal status, and select medications including sedative use.
a
Adjusted least square mean estimates and confidence intervals derived from model using raw values
b
P values for linear trend derived from model using logarithmically transformed sleep parameters.