Table 1 Baseline characteristics of population at risk in HUNT3 with valid data in HUNT4 defined as respectively without headache and with anxiety and depression HADS¹ score of ≤7

Characteristics

Without headache

HADS score ≤7

Number of participants with valid data in HUNT4

13,893

18,380

Women (%) (missing=0)

52.6

57.6

Mean age, years (SD) (missing=0)

54.6 (13.1)

52.3 (13)

≥13 years of education (%) (missing=0)

36.1

38.8

Current smoking, n (%) (missing=308/363)

12.6

12.9

Mean BMI², kg/m² (SD) (missing=16/28)

27.1 (4.1)

27.1 (4.2)

Mean HADS-A³ (SD) (missing=303/0)

3.5 (3.0)

2.9 (2.1)

Mean HADS-D⁴ (SD) (missing=247/0)

3.0 (2.7)

2.4 (2.0)

Mean total HADS¹ score (missing=0)

6.5 (4.9)

5.3 (3.3)

Alcohol abstainers last year (%) (missing=243/287)

6.6

6.1

Self-reported hypertension, n (%) (missing=0)

21.2

18.4

Self-reported stroke (%) (missing=0)

1.8

1.6

Self-reported diabetes mellitus, n (%) (missing=0)

4.2

3.5

Headache (%) (missing=0)

0

35.7