| Description: | Pittsburgh Sleep Quality Index (PSQI): daytime dysfunction due to sleepiness - at age 68 years |
| Category: | Questionnaire data ⏵ Sleep |
| Participants | 2,420 | Value Type | Categorical (single) | Sexed | Both sexes | Debut | Sep 2024 | |||
| Item count | 2,420 | Item Type | Data | Instances | Defined (1) | Version | N/A | |||
| Stability | Complete | Strata | Primary | Array | No | Cost Tier | dX oX sX |
