Table 3 Predictors of insomnia by logistic regression analysis. The Tromsø Study (2015–2016) (N = 16 529)

Hazardous alcohol use

1.64 (1.34. 2.01)

 < .001

1.66 (1.36, 2.03)

 < .001

1.49(1.20, 1.85)

 < .001

1.00 (.78, 1.27)

.975

Sex (women = 0)

.51 (.47, .56)

 < .001

.51 (.47, 56)

 < .001

.58 (.53, .64)

 < .001

.71 (.64, .78)

 < .001

Sex x hazardous alcohol use ^e

1.04 (.81, 1.33)

.752

1.01 (.79, 1.30)

.935

1.02 (.79, 1.3)

.884

1.09 (.82, 1.46)

.552

Age

1.00 (1.00, .1.00)

.549

.99 (.98, .99)

 < .001

1.01 (1.00, 1.01)

.027

Education (lowest = 1, highest = 4)

.91 (.88, .95)

 < .001

.93 (.89, .96)

 < .001

.95 (.91, .99)

.011

Live with spouse (no = 0)

.77 (.70, .84)

 < .001

.84 (.76, .93)

 < .001

.93 (.84, 1.04)

.199

Working shifts (no = 0)

1.22 (1.08, 1.39)

.002

1.24 (1.09, 1.41)

 < .001

1.32 (1.14, 1.51)

 < . 001

Somatic disease (0 = no)

1.57 (1.43, 1.71)

 < .001

1.35 (1.23, 1.49)

 < .001

Sleep medication

2.73 (2.52, 2.95)

 < .001

2.22 (2.05, 2.42)

 < .001

Tranquilizing medication

1.07 (.93, 1.23)

.338

.77 (.66, .90)

 < .001

Antidepressant medication

1.06 (.96, 1.16)

.239

.76 (.69, .85)

 < .001

Mental distress

10.93 (9.65, 12.36)

 < .001