combined_dep_and_ckb_logo

Section

Pollution.Indoor pollution - Current house

Data summary

Baseline

Variable Stats / Values Freqs (% of Valid) Graph Missing
house_years_present [integer]
Mean (sd) : 13 (9.6)
min ≤ med ≤ max:
1 ≤ 11 ≤ 77
IQR (CV) : 12 (0.7)
77 distinct values 0 (0.0%)
cooking_freq_present [factor]
  1. Daily
  1. Weekly
  1. Monthly
  1. Never/Rarely
  1. No cooking facility
302913 ( 58.8% )
60694 ( 11.8% )
20092 ( 3.9% )
130956 ( 25.4% )
758 ( 0.1% )
0 (0.0%)
cooking_fuel_present [factor]
  1. Gas
  1. Coal
  1. Wood
  1. Electricity
  1. Other
184615 ( 48.1% )
103394 ( 26.9% )
82261 ( 21.4% )
10688 ( 2.8% )
2741 ( 0.7% )
131714 (25.6%)
cooking_oil_present [factor]
  1. Rapeseed
  1. Peanut
  1. Soybean
  1. Lard
  1. Other
126247 ( 32.9% )
95769 ( 25.0% )
66127 ( 17.2% )
41497 ( 10.8% )
54059 ( 14.1% )
131714 (25.6%)
cooking_today_mins [integer]
Mean (sd) : 17.6 (24.7)
min ≤ med ≤ max:
0 ≤ 0 ≤ 640
IQR (CV) : 30 (1.4)
116 distinct values 131714 (25.6%)
chimney_present [factor]
  1. Yes
  1. Not all stoves
  1. No
229600 ( 44.6% )
163023 ( 31.7% )
122032 ( 23.7% )
758 (0.1%)
slow_b_present [factor]
  1. Yes, always
  1. Yes, sometimes
  1. No
147421 ( 28.6% )
69439 ( 13.5% )
297795 ( 57.9% )
758 (0.1%)
slow_b_fuel_present [factor]
  1. Smokeless coal
  1. Smoky coal
  1. Coal brick / Coalite
  1. Other
93130 ( 42.9% )
14732 ( 6.8% )
108187 ( 49.9% )
811 ( 0.4% )
298553 (57.9%)
slow_b_loc_present [factor]
  1. Inside the house
  1. Outside the house
188608 ( 87.0% )
28252 ( 13.0% )
298553 (57.9%)
winter_heat_present [factor]
  1. No
  1. Yes
218899 ( 42.5% )
296514 ( 57.5% )
0 (0.0%)
heating_fuel_present [factor]
  1. Central heating
  1. Gas
  1. Coal
  1. Wood
  1. Electricity
  1. Other
62763 ( 21.2% )
497 ( 0.2% )
117152 ( 39.5% )
71806 ( 24.2% )
42264 ( 14.3% )
2031 ( 0.7% )
218900 (42.5%)

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

Resurvey 1

Variable Stats / Values Freqs (% of Valid) Graph Missing
house_years_present [integer]
Mean (sd) : 14 (9.3)
min ≤ med ≤ max:
1 ≤ 13 ≤ 78
IQR (CV) : 13 (0.7)
75 distinct values 0 (0.0%)
cooking_freq_present [factor]
  1. Daily
  1. Weekly
  1. Monthly
  1. Never/Rarely
  1. No cooking facility
11505 ( 58.1% )
2308 ( 11.7% )
690 ( 3.5% )
5278 ( 26.7% )
22 ( 0.1% )
0 (0.0%)
cooking_fuel_present [factor]
  1. Gas
  1. Coal
  1. Wood
  1. Electricity
  1. Other
7095 ( 48.9% )
3564 ( 24.6% )
3072 ( 21.2% )
571 ( 3.9% )
201 ( 1.4% )
5300 (26.8%)
cooking_oil_present [factor]
  1. Rapeseed
  1. Peanut
  1. Soybean
  1. Lard
  1. Other
4445 ( 30.6% )
3741 ( 25.8% )
2925 ( 20.2% )
926 ( 6.4% )
2466 ( 17.0% )
5300 (26.8%)
cooking_today_mins [integer]
Mean (sd) : 18.3 (25.4)
min ≤ med ≤ max:
0 ≤ 3 ≤ 300
IQR (CV) : 30 (1.4)
51 distinct values 5300 (26.8%)
chimney_present [factor]
  1. Yes
  1. Not all stoves
  1. No
9839 ( 49.7% )
5199 ( 26.3% )
4743 ( 24.0% )
22 (0.1%)
slow_b_present [factor]
  1. Yes, always
  1. Yes, sometimes
  1. No
5121 ( 25.9% )
3214 ( 16.2% )
11446 ( 57.9% )
22 (0.1%)
slow_b_fuel_present [factor]
  1. Smokeless coal
  1. Smoky coal
  1. Coal brick / Coalite
  1. Other
3277 ( 39.3% )
839 ( 10.1% )
4167 ( 50.0% )
52 ( 0.6% )
11468 (57.9%)
slow_b_loc_present [factor]
  1. Inside the house
  1. Outside the house
7651 ( 91.8% )
684 ( 8.2% )
11468 (57.9%)
winter_heat_present [factor]
  1. No
  1. Yes
8576 ( 43.3% )
11227 ( 56.7% )
0 (0.0%)
heating_fuel_present [factor]
  1. Central heating
  1. Gas
  1. Coal
  1. Wood
  1. Electricity
  1. Other
2476 ( 22.1% )
14 ( 0.1% )
4475 ( 39.9% )
2776 ( 24.7% )
1471 ( 13.1% )
15 ( 0.1% )
8576 (43.3%)

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

Resurvey 2

Variable Stats / Values Freqs (% of Valid) Graph Missing
house_years_present [integer]
Mean (sd) : 17 (13.2)
min ≤ med ≤ max:
1 ≤ 15 ≤ 83
IQR (CV) : 16 (0.8)
83 distinct values 198 (0.8%)
cooking_freq_present [factor]
  1. Daily
  1. Weekly
  1. Monthly
  1. Never/Rarely
  1. No cooking facility
14894 ( 59.4% )
1792 ( 7.2% )
844 ( 3.4% )
7481 ( 29.9% )
43 ( 0.2% )
198 (0.8%)
cooking_fuel_present [factor]
  1. Gas
  1. Coal
  1. Wood
  1. Electricity
  1. Other
13802 ( 55.2% )
3549 ( 14.2% )
3385 ( 13.5% )
4206 ( 16.8% )
69 ( 0.3% )
241 (1.0%)
cooking_oil_present [factor]
  1. Rapeseed
  1. Peanut
  1. Soybean
  1. Lard
  1. Other
5710 ( 34.2% )
4901 ( 29.4% )
2579 ( 15.5% )
577 ( 3.5% )
2919 ( 17.5% )
8566 (33.9%)
chimney_present [factor]
  1. Yes
  1. Not all stoves
  1. No
16374 ( 65.5% )
3282 ( 13.1% )
5355 ( 21.4% )
241 (1.0%)
slow_b_present2 [factor]
  1. Yes, always
  1. Yes, sometimes
  1. No
3600 ( 14.4% )
1875 ( 7.5% )
19536 ( 78.1% )
241 (1.0%)
slow_b_loc_present [factor]
  1. Inside the house
  1. Outside the house
3992 ( 72.9% )
1483 ( 27.1% )
19777 (78.3%)
winter_heat_present [factor]
  1. No
  1. Yes
11090 ( 44.3% )
13964 ( 55.7% )
198 (0.8%)
heating_fuel_present [factor]
  1. Central heating
  1. Gas
  1. Coal
  1. Wood
  1. Electricity
  1. Other
3543 ( 25.4% )
42 ( 0.3% )
4509 ( 32.3% )
1333 ( 9.5% )
4501 ( 32.2% )
36 ( 0.3% )
11288 (44.7%)

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