Table 3.
HR with 95% CI of death by suicide among subjects who suffer from nightmares, compared to those who never or seldom have nightmares.
| Nightmares | N | Person years | Deaths (%) | HR (95% CI)a | HR (95% CI)b | HR (95% CI)c | HR (95% CI)d |
|---|---|---|---|---|---|---|---|
| Never/seldom | 32,999 | 628,389 | 52 (0.16) | 1.0 (reference) | 1.0 (reference) | 1.0 (reference) | 1.0 (reference) |
| Sometimes | 7496 | 141,425 | 14 (0.19) | 1.41 (0.78–2.56) | 1.10 (0.60–2.01) | 1.03 (0.56–1.90) | 1.04 (0.56–1.92) |
| Often/always | 407 | 7342 | 3 (0.74) | 5.78 (1.80–18.6) | 2.90 (0.86–9.75) | 2.45 (0.70–8.53) | 2.27 (0.65–7.89) |
| P value for trend | 0.04 | 0.36 | 0.53 | 0.55 | |||
a
Adjusted for gender.
b
Adjusted for gender, occupational status, educational status, smoking, sleep duration, hypnotic use, and cardiovascular disease.
c
Adjusted for gender, occupational status, educational status, smoking, sleep duration, hypnotic use, cardiovascular disease, depressive disorders, anxiety disorders, and psychotic disorders.
d
Adjusted for gender, occupational status, educational status, smoking, sleep duration, hypnotic use, cardiovascular disease, self-reported depressive symptoms, and self-reported anxiety symptoms. Significant HRs are in bold.