Table 1. Baseline characteristics of the study population at HUNT2.
| Variables | Daughters | Sons | Mothers | Fathers | |
|---|---|---|---|---|---|
| Participants, no. | 2,592 | 2,150 | 4,742 | 4,742 | |
| Age, mean (SD) | 33.3 (8.2) | 35.1 (8.4) | 60.7 (9.9) | 64.1 (10.2) | |
| Categories of body mass indexa | |||||
| Normal weight, % (no.) | 60.4 (1,545) | 41.6 (887) | 28.7 (1,354) | 27.5 (1,301) | |
| Overweight, % (no.) | 29.9 (765) | 48.7 (1,039) | 43.5 (2,052) | 54.5 (2,579) | |
| Obese, % (no.) | 8.9 (227) | 9.8 (209) | 27.1 (1,278) | 17.1 (810) | |
| Unknown, % (no.) | 0.8 (20) | 0.3 (7) | 0.7 (31) | 0.8 (39) | |
| Leisure time of physical activityb | |||||
| Inactive, % (no.) | 2.8 (73) | 6.1 (130) | 8.0 (381) | 7.6 (363) | |
| Low activity, % (no.) | 25.4 (659) | 19.2 (413) | 37.4 (1,771) | 26.3 (1,246) | |
| Moderate activity, % (no.) | 35.3 (915) | 32.2 (692) | 26.3 (1,247) | 33.2 (1,574) | |
| High activity, % (no.) | 35.3 (916) | 41.5 (892) | 9.7 (461) | 19.9 (944) | |
| Unknown, % (no.) | 1.1 (29) | 1.1 (23) | 18.6 (882) | 13.0 (615) | |
| Chronic musculoskeletal painc | |||||
| Any pain, % (no.) | e | e | 56.9 (2,699) | 52.0 (2,464) | |
| Activity interfering paind, % (no.) | e | e | 51.5 (2,171) | 46.5 (1,981) | |
SD: standard deviation.
aCategories defined by WHO. The category “underweight” is not included.
b“Inactive” defined as no light or hard activity, “low” defined as <3 hours light and no hard activity, “moderate” defined as ≥3 hours light and/or <1 hour hard activity, and “high” defined as any light and ≥1 hour hard activity.
cPain with duration ≥3 months during the last year at any location.
dPain that interfere with work ability and/or leisure time activity.
eOffspring with pain at baseline (HUNT2) were excluded from the analyses.