Table 3 Differences in outcome measures between different napping behaviour for those who engage in a daytime nap at least once per day
From: Daytime napping associated with increased symptom severity in fibromyalgia syndrome
Duration of daytime nap | Intentional versus non-intentional napping | |||||
|---|---|---|---|---|---|---|
<30 minutes (N = 115) | >30 minutes (N = 203) | Test of difference | Intentional N = 132 | Non-intentional N = 276 | Test of difference | |
Age (Mean) | 50.63 (10.73) | 45.82 (9.50) | t = 4.44, p = 0.00 | 47.67 (9.40) | 46.94 (10.40) | t = 0.71, p 0.48 |
Sex (% Male) | 8 (7.0%) | 33 (11.3%) | Χ = 1.6, p = 0.19 | 12 (9.10) | 29 (10.5) | X = 0.20, p = 0.66 |
Median number of children | 0.00 (1.00) | 1.00 (2.00) | U = 9.69, p = 0.03 | 1.00 (2.00) | 0.00 (2.00) | U = 0.00, p = 1.00 |
Median years since diagnosis | 7.00 (9.00) | 8.00 (10.00) | U = 16,902, p = 0.84 | 3.5 (5.0) | 3.0 (5.0) | U = 0.01, p = 0.98 |
Number of co-morbidities | ||||||
None (N, %) | 17 (14.8%) | 46 (15.7%) | Χ =0.34, p = 0.84 | 17 (12.9) | 46 (16.7) | X = 1.20, p = 0.55 |
≤2 comorbidities (N, %) | 61 (53.0%) | 146 (49.8%) | 71 (53.8) | 136 (49.3) | ||
>2 comorbidities (N, %) | 37 (32.2%) | 101 (34.5%) | 44 (33.3) | 94 (34.1) | ||
MOS Sleep outcomes scale | ||||||
Mean sleep duration in hours | 5:32 (01:38) | 5:52 (02:03) | t = −1.61, p = 0:11 | 6:02 (1:58) | 5:39 (1:56) | t = −1.78, p = 0.08 |
Mean sleep problems index I | 69.94 (16.45) | 70.93 (15.29) | t = −0.58, p = 0.57 | 50.78 (16.34) | 46.87 (14.48) | t = 3.55, p = 0.00 |
Mean sleep problems index II | 70.98 (16.54) | 72.68 (14.76) | t = −1.01, p = 0.31 | 45.03 (12.73) | 42.00 (10.84) | t = 4.02, p = 0.00 |
McGill Pain questionnaire | ||||||
Median sensory subscale | 25.00 (8.00) | 24.00 (6.50) | U = 16,817, p = 0.82 | 22.00 (11.00) | 25.00 (7.00) | U = 21.11, p = 0.00 |
Median affective subscale | 8.00 (4.00) | 8.00 (4.00) | U = 17,714, p = 0.81 | 7.5 (4.0) | 8.00 (4.00) | U = 4.35, p = 0.04 |
Median total score | 33.00 (11.00) | 32.00 (10.00) | U = 17,342, p = 0.64 | 30.00 (9.00) | 31.98 (9.00) | U = 22.45, p = 0.00 |
FSS Fatigue severity | ||||||
Mean total score | 56.72 (9.09) | 58.05 (8.13) | t = −1.43, p = 0.15 | 57.67 (8.36) | 57.67 (8.57) | t = 252.45, p = 1.00 |
EMQ-R Everyday memory | ||||||
Mean total score | 32.15 (14.07) | 36.97 (12.11) | t = −3.45, p = 0.00 | 29.55 (6.64) | 31.98 (7.08) | t = 272.37, p = 0.10 |
HADS Mood | ||||||
Mean anxiety score | 12.13 (4.44) | 13.11 (4.18) | t = −2.10, p = 0.04 | 12.30 (4.05) | 13.12 (4.39) | t = 2.22, p = 0.03 |
Mean depression score | 10.59 (3.99) | 11.66 (3.84) | t = −2.50, p = 0.01 | 10.75 (3.42) | 11.60 (4.01) | t = 2.72, p = 0.01 |