Variable breakdown
tea_details_enter
Section and category
Section Timings.Timings
Description
“Start time for Q2.3 to Q2.10 [Extra section for frequent tea drinkers only]”
Additional information
| Metadata | |
|---|---|
| contents | Date and time |
| is_mandatory | No |
Data summary
Baseline
| Year_Quarter | freq | pct_valid | pct_tot |
|---|---|---|---|
| 1987.4 | 1 | 0.00 | 0.00 |
| 2004.2 | 96 | 0.06 | 0.02 |
| 2004.3 | 2607 | 1.52 | 0.51 |
| 2004.4 | 7737 | 4.50 | 1.50 |
| 2005.1 | 8430 | 4.90 | 1.64 |
| 2005.2 | 13401 | 7.80 | 2.60 |
| 2005.3 | 10004 | 5.82 | 1.94 |
| 2005.4 | 12670 | 7.37 | 2.46 |
| 2006.1 | 9977 | 5.80 | 1.94 |
| 2006.2 | 14171 | 8.24 | 2.75 |
| 2006.3 | 12456 | 7.25 | 2.42 |
| 2006.4 | 12644 | 7.36 | 2.45 |
| 2007.1 | 9499 | 5.53 | 1.84 |
| 2007.2 | 12032 | 7.00 | 2.33 |
| 2007.3 | 10717 | 6.23 | 2.08 |
| 2007.4 | 14360 | 8.35 | 2.79 |
| 2008.1 | 8824 | 5.13 | 1.71 |
| 2008.2 | 11941 | 6.95 | 2.32 |
| 2008.3 | 319 | 0.19 | 0.06 |
| 2009.3 | 2 | 0.00 | 0.00 |
| <NA> | 343525 | NA | 66.65 |
Resurvey 1
| Year_Quarter | freq | pct_valid | pct_tot |
|---|---|---|---|
| 1987.4 | 1 | 0.02 | 0.01 |
| 2008.2 | 785 | 14.23 | 3.96 |
| 2008.3 | 4557 | 82.63 | 23.01 |
| 2008.4 | 172 | 3.12 | 0.87 |
| <NA> | 14288 | NA | 72.15 |
Resurvey 2
| Year_Quarter | freq | pct_valid | pct_tot |
|---|---|---|---|
| 2013.3 | 715 | 9.98 | 2.83 |
| 2013.4 | 1768 | 24.68 | 7.00 |
| 2014.1 | 1282 | 17.90 | 5.08 |
| 2014.2 | 2315 | 32.32 | 9.17 |
| 2014.3 | 1083 | 15.12 | 4.29 |
| <NA> | 18089 | NA | 71.63 |
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