Table 2 Comparisons between those who nap daily on a regular basis and those who do not
From: Daytime napping associated with increased symptom severity in fibromyalgia syndrome
Regular daily nap (N = 408) | Non regular nap (N = 636) | Test of difference | |
|---|---|---|---|
Median (Interquartile range) | |||
Number of children | 1.00 (2.00) | 0.00 (2.00) | U = 3.02, P = 0.82 |
Years since diagnosis | 7.00 (10.00) | 7.00 (9.00) | U = 0.50, p = 0.52 |
McGill Pain questionnaire | |||
Sensory subscale (Median, IQR) | 24.00 (7.00) | 22.00 (7.00) | U = 102,640, p = 0.00 |
Affective subscale (Median, IQR) | 8.00 (4.00) | 7.00 (4.00) | U = 105,928, p = 0.00 |
Total score median (Median, QR) | 32.00 (9.75) | 29.00 (11.00) | U = 101,372, p = 0.00 |
Frequency (%) | |||
Male gender | 41 (10%) | 37 (5.8%) | χ = 6.44, p = 0.01 |
Number of co-morbidities | |||
None | 63 (15.4%) | 140 (22.0%) | Χ = 13.83, p = 0.00 |
≤2 Co-morbidities | 207 (50.7%) | 341 (53.6%) | |
>2 Co-morbidities | 138 (33.8%) | 155 (24.4%) | |
Mean | |||
(Standard deviation) | |||
Age | 47.17 (10.08) | 46.75 (10.59) | |
MOS Sleep outcomes scale | |||
Sleep duration in hours | 5:47 (01:57) | 6:04 (01:48) | t = 2.45, p = 0.02 |
Sleep problems index I | 70.65 (15.61) | 61.65 (16.95) | t =8.63, p = 0.00 |
Sleep problems index II | 72.20 (15.28) | 63.42 (16.71) | t =8.57, p = 0.00 |
FSS Fatigue severity | |||
Total score | 57.67 (8.42) | 53.72 (10.47) | t = −6.41, p = 0.00 |
EMQ-R Everyday memory | |||
Total score | 35.61 (12.86) | 30.91 (13.51) | t = −5.59, p = 0.00 |
HADS Mood | |||
Anxiety subscale | 12.84 (4.27) | 11.77 (4.37) | t = −3.89, p = 0.00 |
Depression subscale | 11.36 (3.90) | 9.83 (14.14) | t = −5.94, p = 0.00 |