TABLE 1.
Demographic and clinical characteristics at baseline
| IRT | WL | |||
|---|---|---|---|---|
| Age | M (SD) | 29.5 (8.6) | 29.7 (10.4) | F (1, 68) = 0.003, p = .96 |
| Gender | Female | 97.2% (35) | 94.1% (32) | χ 2(1) = 0.41, p = .61 |
| Education | High | 72.2% (26) | 88.2% (30) | χ 2(1) = 2.80, p = .14 |
| Cohabitating | Yes | 72.2% (26) | 73.5% (25) | χ 2(1) = 0.15, p = .99 |
| Employed | Yes | 80.6% (29) | 67.6% (23) | χ 2(1) = 1.53, p = .28 |
| Born in the Netherlands | Yes | 91.7% (33) | 91.4% (33) | χ 2(1) = 0.16, p = .99 |
| Years nightmares | 6 months to <1 year | 5.6% (2) | 2.9% (1) | χ 2(3) = 4.47, p = .22 |
| 1 year to <5 years | 11.1% (4) | 17.6% (6) | ||
| 5 years to <10 years | 22.8% (8) | 5.9% (2) | ||
| ≥10 years | 61.1% (22) | 73.5% (25) | ||
| Sleep medication | Yes | 8.3% (3) | 20.6% (7) | χ 2(1) = 1.61, p = .20 |
| Anti‐depressants | Yes | 13.9% (5) | 11.8% (4) | χ 2(1) = 0.69, p > .99 |
Abbreviations: IRT, imagery rehearsal therapy; WL, wait‐list.