Table 2 Basic characteristics of study population with valid answers for co-variables, the HUNT Study (HUNT2, 1995–1997), N = 34,262 aged 19–87 years

Female

17,808 (100%)

0 (0%)

17,808 (52.0%)

Age (mean (SD))

42.5 (12.9)

44.4 (13.0)

<.001

43.4 (13.0)

Anxiety

3,135 (17.6%)

2,083 (12.7%)

<.001

5,218 (15.2%)

Depression

1,544 (8.7%)

1,585 (9.6%)

.002

3,129 (9.1%)

Somatic diagnosis >0

1,878 (10.6%)

2,310 (14.0%)

<.001

4,188 (12.2%)

Physical activity

<.001

  No

3,720 (20.9%)

3,947 (24.0%)

7,667 (22.4%)

  Moderate

9,497 (53.3%)

6,661 (40.5%)

16,158 (47.2%)

  Heavy

4,591 (25.8%)

5,846 (35.5%)

10,437 (30.5%)

Consumption of alcohol

<.001

  No consumption

5,877 (33.0%)

3,176 (19.3%)

9,053 (26.4%)

  Moderate consumption

11,788 (66.2%)

12,477 (75.8%)

24,265 (70.8%)

  Heavy consumption

143 (0.8%)

801 (4.9%)

944 (2.8%)

Smoking

6,110 (34.3%)

4,973 (30.2%)

<.001

11,083 (32.4%)

Marital status

<.001

  Married

11,059 (62.1%)

10,078 (61.3%)

21,137 (61.7%)

  Not married

4,585 (25.8%)

5,076 (30.9%)

9,661 (28.2%)

  Separated or divorced

1,475 (8.3%)

1,109 (6.7%)

2,584 (7.6%)

  Widow/Widower

688 (3.9%)

189 (1.2%)

877 (2.6%)

Self-reporting disability pension

1,529 (8.6%)

1,108 (6.7%)

<.001

2,637 (7.7%)

Self-reporting rehabilitation benefit

268 (1.5%)

226 (1.4%)

.087

494 (1.4%)

Self-reporting retirement pension

667 (3.8%)

906 (5.5%)

<.001

1,573 (4.6%)