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Section and category

Background.Basic


Description

“Year of birth (Original questionnaire)”


Additional information

Metadata
contents Four digit year
soft_min Age 33
soft_max Age 76
hard_min 1904
hard_max 1999
is_mandatory Yes

Data summary

Qc




mean sd min q1 med q3 max mad iqr cv skewness se.skewness kurtosis n.valid pct.valid
1953.9 10.77 1924 1946 1954 1963 1981 13.34 17 0.01 -0.22 0.02 -0.9 15816 100




Between-survey agreement

No agreement analysis available



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