| Description: | Have you ever had trouble with your back - at age 31 years |
| Category: | Questionnaire data ⏵ Health and medical history ⏵ Medical conditions ⏵ Musculoskeletal system conditions |
| Participants | 3,253 | Value Type | Categorical (single) | Sexed | Both sexes | Debut | Jun 2025 | |||
| Item count | 3,253 | Item Type | Data | Instances | Defined (1) | Version | N/A | |||
| Stability | Complete | Strata | Primary | Array | No | Cost Tier | dX oX sX |
