Table 3. Risk for offspring chronic musculoskeletal pain associated with the combined effect of parental chronic musculoskeletal pain and offspring leisure time physical activity.
| Offspring activity-interfering CMP | ||||
|---|---|---|---|---|
| Variables | High leisure time physical activity | Moderate leisure time physical activity | Low leisure time physical activity | |
| No CMP | ||||
| Cases/non-cases | 49/301 | 38/239 | 48/188 | |
| Age-adjusted RR | 1.00 | 0.96 | 1.40 | |
| RRa | 1.00 (Ref.) | 0.91 (0.62, 1.36) | 1.29 (0.89, 1.87) | |
| Any CMP, one parent | ||||
| Case/non-case | 215/894 | 241/780 | 202/659 | |
| Age-adjusted RR | 1.36 | 1.61 | 1.56 | |
| RRa | 1.30 (0.97, 1.75) | 1.51 (1.13, 2.03) | 1.38 (1.03, 1.87) | |
| Any CMP, both parents | ||||
| Case/non-case | 86/352 | 82/307 | 96/217 | |
| Age-adjusted RR | 1.39 | 1.45 | 2.12 | |
| RRa | 1.32 (0.95, 1.84) | 1.34 (0.96, 1.86) | 1.82 (1.32, 2.50) | |
CMP: chronic musculoskeletal pain, CI: confidence interval, RR: relative risk.
aAdjusted for offspring factors in HUNT2; age (continuous), sex, body mass index (underweight, normal weight, overweight, obese, or unknown), physical work demands (mostly sedentary, much walking, much walking and lifting, heavy physical work, or unknown), psychological well-being (satisfied, somewhat satisfied, dissatisfied, or unknown), and education (<10 years, 10–12 years, ≥13 years, or unknown).