| Description: | Visual changes develop slowly before or near the onset of headaches |
| Category: | Online follow-up ⏵ Experience of pain |
| Participants | 21,301 | Value Type | Categorical (single) | Sexed | Both sexes | Debut | Dec 2020 | |||
| Item count | 21,301 | Item Type | Data | Instances | Singular | Version | Dec 2020 | |||
| Stability | Accruing | Strata | Primary | Array | No | Cost Tier | 1 |
WARNING: the interactive features of this website use CSS3, which your browser does not support. To use the full features of this website, please update your browser.
Only asked if Field 120065 was answered yes
| Preview | Name | Res ID |
|---|---|---|
 | Experience of pain questionnaire description | 2718 |
 | Online pain questionnaire screenshot E6ai-Ebi | 1375 |
Enabling scientific discoveries that improve human health