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Section

Pollution.Passive smoking

Data summary

Baseline

Variable Stats / Values Freqs (% of Valid) Graph Missing
ever_lived_with_smoker [factor]
  1. Never
  1. Yes, but not now
  1. Yes, at present
126524 ( 24.5% )
161229 ( 31.3% )
227660 ( 44.2% )
0 (0.0%)
lived_with_smoker_years [integer]
Mean (sd) : 30.2 (15.3)
min ≤ med ≤ max:
0 ≤ 28 ≤ 80
IQR (CV) : 20 (0.5)
80 distinct values 126524 (24.5%)
smoke_exposure [factor]
  1. Never or almost never
  1. Occasionally (<1 time/wee
  1. 1-2 days/week
  1. 3-5 days/week
  1. Daily or almost every day
83356 ( 16.2% )
109076 ( 21.2% )
46873 ( 9.1% )
62206 ( 12.1% )
213902 ( 41.5% )
0 (0.0%)
smoke_exposure_hours [integer]
Mean (sd) : 10.7 (10.4)
min ≤ med ≤ max:
0 ≤ 7 ≤ 99
IQR (CV) : 16 (1)
80 distinct values 192432 (37.3%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27

Qc

Variable Stats / Values Freqs (% of Valid) Graph Missing
smoke_exposure [factor]
  1. Never or almost never
  1. Occasionally (<1 time/wee
  1. 1-2 days/week
  1. 3-5 days/week
  1. Daily or almost every day
3096 ( 19.6% )
2832 ( 17.9% )
1518 ( 9.6% )
1518 ( 9.6% )
6852 ( 43.3% )
0 (0.0%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27

Resurvey 1

Variable Stats / Values Freqs (% of Valid) Graph Missing
ever_lived_with_smoker [factor]
  1. Never
  1. Yes, but not now
  1. Yes, at present
4534 ( 22.9% )
6173 ( 31.2% )
9096 ( 45.9% )
0 (0.0%)
lived_with_smoker_years [integer]
Mean (sd) : 33.2 (15.8)
min ≤ med ≤ max:
1 ≤ 30 ≤ 79
IQR (CV) : 23 (0.5)
79 distinct values 4534 (22.9%)
smoke_exposure [factor]
  1. Never or almost never
  1. Occasionally (<1 time/wee
  1. 1-2 days/week
  1. 3-5 days/week
  1. Daily or almost every day
3474 ( 17.5% )
4253 ( 21.5% )
1762 ( 8.9% )
2111 ( 10.7% )
8203 ( 41.4% )
0 (0.0%)
smoke_exposure_hours [integer]
Mean (sd) : 9.5 (9.3)
min ≤ med ≤ max:
1 ≤ 6 ≤ 84
IQR (CV) : 12 (1)
46 distinct values 7727 (39.0%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27

Resurvey 2

Variable Stats / Values Freqs (% of Valid) Graph Missing
ever_lived_with_smoker [factor]
  1. Never
  1. Yes, but not now
  1. Yes, at present
11533 ( 46.0% )
3961 ( 15.8% )
9560 ( 38.2% )
198 (0.8%)
lived_with_smoker_years [integer]
Mean (sd) : 28.6 (14.6)
min ≤ med ≤ max:
1 ≤ 28 ≤ 82
IQR (CV) : 19 (0.5)
82 distinct values 11731 (46.5%)

Generated by summarytools 1.0.1 (R version 4.3.1)
2024-02-27




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