| Description: | Do you have any of the following: Recurrent backache/prolapsed disc/sciatica/other back prob |
| Category: | Specialist questionnaire data ⏵ Covid questionnaires ⏵ General health |
| Participants | 1,895 | Value Type | Categorical (single) | Sexed | Both sexes | Debut | Jun 2025 | |||
| Item count | 2,129 | Item Type | Data | Instances | Defined (3) | Version | N/A | |||
| Stability | Complete | Strata | Primary | Array | No | Cost Tier | dX oX sX |
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Data has not been summarised because combining instances would be misleading.
Instance 30 : 2020 - Second covid questionnaire at age 74 years.
249 participants, 249 items
Instance 31 : 2021 - Third covid questionnaire at age 75 years.
1,506 participants, 1,506 items
National Survey of Health and Development 1946 Cohort