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Section

Smoking.Basic

Data summary

Baseline

Variable Stats / Values Freqs (% of Valid) Graph Missing
smoking_today [factor]
  1. No
  1. Yes
395687 ( 76.8% )
119726 ( 23.2% )
0 (0.0%)
smoking_category [factor]
  1. Never smoker
  1. Occasional smoker
  1. Ex regular smoker
  1. Smoker
319495 ( 62.0% )
29244 ( 5.7% )
30719 ( 6.0% )
135955 ( 26.4% )
0 (0.0%)
smoking_today_amount [integer]
Mean (sd) : 5.9 (5.3)
min ≤ med ≤ max:
0 ≤ 4 ≤ 99
IQR (CV) : 5 (0.9)
55 distinct values 395688 (76.8%)
smoking_last_hour_amount [integer]
Mean (sd) : 1 (1)
min ≤ med ≤ max:
0 ≤ 1 ≤ 15
IQR (CV) : 1 (1)
16 distinct values 395688 (76.8%)
smoking_now [factor]
  1. Do not smoke now
  1. Only occasionally
  1. Yes, on most days
  1. Yes, daily or almost ever
363985 ( 70.6% )
22959 ( 4.5% )
3810 ( 0.7% )
124659 ( 24.2% )
0 (0.0%)
smoking_past [factor]
  1. Did not smoke
  1. Smoked only occasionally
  1. Smoked on most days
  1. Smoked daily or almost ev
322047 ( 83.2% )
26692 ( 6.9% )
1117 ( 0.3% )
37088 ( 9.6% )
128469 (24.9%)
smoking_100_plus_cigs [factor]
  1. No
  1. Yes
329176 ( 94.4% )
19563 ( 5.6% )
166674 (32.3%)

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

Qc

Variable Stats / Values Freqs (% of Valid) Graph Missing
smoking_now [factor]
  1. Do not smoke now
  1. Only occasionally
  1. Yes, on most days
  1. Yes, daily or almost ever
11285 ( 71.4% )
677 ( 4.3% )
125 ( 0.8% )
3729 ( 23.6% )
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
smoking_today [factor]
  1. No
  1. Yes
15604 ( 78.8% )
4199 ( 21.2% )
0 (0.0%)
smoking_category [factor]
  1. Never smoker
  1. Occasional smoker
  1. Ex regular smoker
  1. Smoker
12787 ( 64.6% )
1001 ( 5.1% )
1257 ( 6.3% )
4758 ( 24.0% )
0 (0.0%)
smoking_today_amount [integer]
Mean (sd) : 5.9 (5.1)
min ≤ med ≤ max:
1 ≤ 5 ≤ 50
IQR (CV) : 6 (0.9)
31 distinct values 15604 (78.8%)
smoking_last_hour_amount [integer]
Mean (sd) : 0.9 (0.9)
min ≤ med ≤ max:
0 ≤ 1 ≤ 8
IQR (CV) : 1 (1.1)
0 : 1640 ( 39.1% )
1 : 1772 ( 42.2% )
2 : 528 ( 12.6% )
3 : 174 ( 4.1% )
4 : 67 ( 1.6% )
5 : 14 ( 0.3% )
6 : 3 ( 0.1% )
8 : 1 ( 0.0% )
15604 (78.8%)
smoking_now [factor]
  1. Do not smoke now
  1. Only occasionally
  1. Yes, on most days
  1. Yes, daily or almost ever
14526 ( 73.4% )
770 ( 3.9% )
114 ( 0.6% )
4393 ( 22.2% )
0 (0.0%)
smoking_past [factor]
  1. Did not smoke
  1. Smoked only occasionally
  1. Smoked on most days
  1. Smoked daily or almost ev
12844 ( 84.0% )
944 ( 6.2% )
35 ( 0.2% )
1473 ( 9.6% )
4507 (22.8%)
smoking_100_plus_cigs [factor]
  1. No
  1. Yes
13125 ( 95.2% )
663 ( 4.8% )
6015 (30.4%)

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

Resurvey 2

Variable Stats / Values Freqs (% of Valid) Graph Missing
smoking_today [factor]
  1. No
  1. Yes
20523 ( 81.9% )
4531 ( 18.1% )
198 (0.8%)
smoking_category [factor]
  1. Never smoker
  1. Occasional smoker
  1. Ex regular smoker
  1. Smoker
17091 ( 68.2% )
1224 ( 4.9% )
1613 ( 6.4% )
5126 ( 20.5% )
198 (0.8%)
smoking_today_amount [integer]
Mean (sd) : 5.4 (5.2)
min ≤ med ≤ max:
1 ≤ 4 ≤ 55
IQR (CV) : 4 (1)
31 distinct values 20721 (82.1%)
smoking_last_hour_amount [integer]
Mean (sd) : 0.9 (1.2)
min ≤ med ≤ max:
0 ≤ 1 ≤ 20
IQR (CV) : 1 (1.3)
13 distinct values 20721 (82.1%)
smoking_now [factor]
  1. Do not smoke now
  1. Only occasionally
  1. Yes, on most days
  1. Yes, daily or almost ever
19482 ( 77.8% )
711 ( 2.8% )
150 ( 0.6% )
4711 ( 18.8% )
198 (0.8%)
smoking_past [factor]
  1. Did not smoke
  1. Smoked only occasionally
  1. Smoked on most days
  1. Smoked daily or almost ev
17284 ( 85.6% )
1031 ( 5.1% )
84 ( 0.4% )
1794 ( 8.9% )
5059 (20.0%)
smoking_100_plus_cigs [factor]
  1. No
  1. Yes
17391 ( 95.0% )
924 ( 5.0% )
6937 (27.5%)

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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Page generated: 27-02-2024