Variable breakdown
diet_freq_dairy
Section and category
Diet.Other foods
Description
“During the past 12 months, about how often did you eat dairy products (milk, yogurt)?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | Yes |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| Daily | 50977 | 9.89 | 9.89 |
| 4-6 days per week | 10700 | 2.08 | 2.08 |
| 1-3 days per week | 44494 | 8.63 | 8.63 |
| Monthly | 57449 | 11.15 | 11.15 |
| Never/rarely | 351793 | 68.25 | 68.25 |
| <NA> | 0 | NA | 0.00 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| Daily | 1915 | 9.67 | 9.67 |
| 4-6 days per week | 419 | 2.12 | 2.12 |
| 1-3 days per week | 2093 | 10.57 | 10.57 |
| Monthly | 2535 | 12.80 | 12.80 |
| Never/rarely | 12841 | 64.84 | 64.84 |
| <NA> | 0 | NA | 0.00 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 19803 | 2 | Kappa | 0.323 | 72.388 | 0 |
International Coordinating Centre, China Kadoorie Biobank (CKB), CTSU, Nuffield Department of Population Health, University of Oxford Old Road Campus, Headington, Oxford, OX3 7LF
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Copyright China Kadoorie Biobank (CKB), University of Oxford, (2024)
Page generated: 27-02-2024