| Description: | Pittsburgh Sleep Quality Index (PSQI): total score - at age 68 years |
| Category: | Questionnaire data ⏵ Sleep |
| Participants | 2,082 | Value Type | Categorical (single) | Sexed | Both sexes | Debut | Sep 2024 | |||
| Item count | 2,082 | Item Type | Data | Instances | Defined (1) | Version | N/A | |||
| Stability | Complete | Strata | Primary | Array | No | Cost Tier | dX oX sX |
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| Category | Count |
|---|---|
| Better | 23 |
| One | 178 |
| Two | 285 |
| Three | 320 |
| Four | 277 |
| Five | 257 |
| Six | 211 |
| Seven | 140 |
| Eight | 113 |
| Nine | 84 |
| Ten | 59 |
| Eleven | 40 |
| Twelve | 54 |
| Thirteen | 28 |
| Fourteen | 13 |
National Survey of Health and Development 1946 Cohort