Variable breakdown
first_period_age
Section and category
Reproductive History.Menarche-menopause
Description
“How old were you when you had your first menstrual period?”
Additional information
| Metadata | |
|---|---|
| contents | Age in years |
| soft_min | 1 |
| soft_max | 20 |
| hard_min | 4 |
| hard_max | 30 |
| is_mandatory | Yes |
Data summary
Baseline
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.44 | 1.97 | 0 | 14 | 15 | 17 | 30 | 1.48 | 3 | 0.13 | 0.35 | 0 | 0.59 | 304349 | 59.05 |
Resurvey 1
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.5 | 1.97 | 7 | 14 | 15 | 17 | 27 | 1.48 | 3 | 0.13 | 0.27 | 0.02 | 0.21 | 12019 | 60.69 |
Resurvey 2
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.82 | 2.09 | 8 | 14 | 16 | 17 | 30 | 1.48 | 3 | 0.13 | 0.28 | 0.02 | 0.45 | 15395 | 60.97 |
Between-survey agreement
[1] “ICC:”
## Error in loadNamespace(x): there is no package called 'psych'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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Page generated: 27-02-2024