Table 1.
Questionnaire Data and Objective Sleep Parameters from Polysomnographic Recordings in Subjects With (n = 8) and Without (n = 7) RLS During the Last Trimester of Pregnancy and 3 Months Postpartum
| Pregnancy |
Postpartum |
||||||
|---|---|---|---|---|---|---|---|
| Controls | RLS | Controls | RLS | Factor RLS PF | Factor Time PF | Effect of Interaction PF | |
| RLS symptoms (IRLS score) | — | 19.78 ± 6,26 | — | 7.0 ± 6.58 | — | P < 0.001a | — |
| Sleep quality (PSQI) | 7.67 ± 3.34 | 9.14 ± 2.53 | 5.50 ± 2.12 | 4.71 ± 2.26 | NS | P11.84 < 0.01 | NS |
| PLM-Index Time in Bed (#/h) | 1.96 ± 1.32 | 42.14 ± 42.79 | 1.62 ± 1.84 | 15.44 ± 20.24 | P5.40 < 0.05 | P6.81 < 0.05 | P6.48 < 0.05 |
| PLM-Index Wake (#/h) | 5.44 ± 5.51 | 57.91 ± 51.28 | 12.60 ± 21.10 | 25.29 ± 27.93 | P4.80 < 0.05 | NS | P7.29 < 0.05 |
| PLM-Index S1 (#/h) | 1.40 ± 1.79 | 48.61 ± 36.28 | 2.96 ± 5.05 | 14.01 ± 19.40 | P8.43 < 0.05 | P11.79 < 0.005 | P14.11 < 0.005 |
| PLM-Index S2 (#/h) | 1.16 ± 1.50 | 43.86 ± 50.92 | 1.60 ± 2.51 | 18.36 ± 27.34 | NS | P4.77 < 0.05 | P5.12 < 0.05 |
| PLM-Index S3 (#/h) | 4.03 ± 8.66 | 35.61 ± 51.97 | 1.01 ± 1.76 | 6.23 ± 11.55 | NS | NS | NS |
| PLM-Index S4 (#/h) | 2.0 ± 4.78 | 26.14 ± 48.57 | 0.54 ± 0.94 | 1.29 ± 3.64 | NS | NS | NS |
| PLM-Index REM (#/h) | 0.64 ± 1.70 | 8.32 ± 10.26 | 0.0 ± 0.0 | 7.71 ± 15.07 | NS | NS | NS |
| Time In Bed (TIB, min) | 476.43 ± 8.97 | 482.00 ± 1.20 | 477.43 ± 10.82 | 480.81 ± 1.10 | NS | NS | NS |
| Total Sleep Time (TST, min) | 373.93 ± 62.17 | 394.44 ± 40.82 | 423.43 ± 33.37 | 396.31 ± 49.34 | NS | NS | NS |
| Sleep efficiency (SEI, %) | 86.20 ± 7.47 | 85.13 ± 6.52 | 93.31 ± 4.29 | 84.88 ± 8.75 | P6.18 < 0.05 | NS | NS |
| Sleep latency (S2, min) | 17.43 ± 12.73 | 17.12 ± 13.78 | 22.36 ± 16.91 | 18.19 ± 16.99 | NS | NS | NS |
| REM latency (min) | 78.10 ± 35.23 | 95.00 ± 44.55 | 67.86 ± 8.20 | 71.50 ± 37.14 | NS | P4.93 < 0.05 | NS |
| Wake (% sleep period time) | 13.04 ± 7.54 | 13.61 ± 5.76 | 6.40 ± 4.27 | 13.63 ± 8.85 | NS | NS | NS |
| S1 (% SPT) | 7.73 ± 2.73 | 6.23 ± 2.70 | 4.80 ± 1.27 | 5.49 ± 2.49 | NS | P7.89 < 0.05 | NS |
| S2 (% SPT) | 48.48 ± 6.43 | 51.53 ± 8.22 | 47.02 ± 4.55 | 46.71 ± 4.81 | NS | NS | NS |
| S3/S4 (% SPT) | 13.91 ± 4.98 | 13.33 ± 4.81 | 17.49 ± 5.25 | 15.61 ± 5.51 | NS | NS | NS |
| REM sleep (% SPT) | 15.67 ± 2.89 | 13.66 ± 3.46 | 23.40 ± 5.02 | 16.68 ± 5.61 | P6.67 < 0.05 | P12.30 < 0.005 | NS |
Mean ± SD; results from repeated measures ANOVA with factors RLS and time (pre/post partum); df (1,13) except for PSQI scores (df: 1,11);
a
paired T-test (n = 9), T = 6.24; NS: not significant.