Table 1.
Participant demographics by insomnia status
| Overall | No insomnia (n = 156) | Insomnia (n = 156) | Significance test for insomnia vs no insomnia | |
|---|---|---|---|---|
| Age in years | M = 48.62 (SD = 16.10) | M = 48.18 (SD = 16.31) | M = 49.07 (SD = 15.93) | t(307) = − 0.49, p = 0.63 |
| Gender | ||||
| Women | 207 (66.3%) | 91 (58.3%) | 116 (74.4%) | X2(1, N = 311) = 8.55, p = 0.003 |
| Men | 104 (33.3%) | 64 (41.0%) | 40 (25.6%) | |
| Other | 1 (0.3%) | 1 (0.6%) | 0 | |
| Race/ethnicity | ||||
| African American/Black | 1 (0.3%) | 0 | 1 (0.6%) | X2(5, 312) = 9.03, p = 0.11 |
| American Indian/Alaska Native | 2 (0.6%) | 2 (0.6%) | 0 | |
| Asian | 2 (0.6%) | 0 | 2 (0.1.3%) | |
| Hispanic | 2 (0.6%) | 1 (0.6%) | 1 (0.6%) | |
| White | 299 (95.8%) | 150 (96.2%) | 149 (95.5%) | |
| Other | 3 (1%) | 3 (1%) | 0 | |
| Inflammatory bowel disease | ||||
| Crohn’s disease | ||||
| Active | 113 (36.5%) | 39 (25.3%) | 74 (47.4%) | X2(1, 310) = 31.15, p < 0.001 for disease activity; |
| Inactive | 75 (24.2%) | 50 (32.5%) | 25 (16.0%) | |
| Ulcerative colitis | ||||
| Active | 57 (18.4%) | 21 (13.6%) | 36 (23.1%) | X2(1, 310) = 1.04, p = 0.31 for Crohn’s vs UC |
| Inactive | 65 (21.0%) | 44 (28.6%) | 21 (13.5%) | |
| Age of IBD symptom onset in years | M = 27.82 (SD = 15.66) | M = 26.67 (SD = 14.89) | M = 28.97 (SD = 16.36) | t(309) = − 1.30, p = 0.20 |
| Age of IBD diagnosis in years | M = 32.34 (SD = 16.01) | M = 31.45 (SD = 15.10) | M = 33.22 (SD = 16.88) | t(309) = − 0.97, p = 0.33 |
IBD inflammatory bowel disease