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Table 1 Baseline characteristics of population at risk

From: Insomnia and risk of chronic musculoskeletal complaints: longitudinal data from the HUNT study, Norway

 

No insomnia

Insomnia

No. of participants

13,113

316

No. of females (%) (missing = 0)

7185 (54.8)

181 (57.3)

Mean age, years (SD) (missing = 0)

43.4 (12.2)

44.5 (12.2)

Education ≥13 years, no (%) (missing = 167)

3680 (28.4)

108 (34.7)

Paid or self-employed workers, no (%) (missing = 113)

9947 (76.5)

211 (67.6)

Heavy physical activity ≥3 h/wb, no (%) (missing = 418)

1390 (10.9)

35 (11.6)

Daily smokers, no (%) (missing = 131)

3024 (23.3)

95 (30.4)

HADSc mean, (SD) (missing = 141)

6.2 (4.6)

12.7 (6.8)

Body mass index ≥25 (%) (missing =26)

7181 (54.9)

156 (49.5)

  1. Abbreviations: SD standard deviation, no number, h/w hours per week, HADS Hospital Anxiety and Depression Score