| Age in 1976, years, Mean, SD |
39.5 |
10.6 |
39 |
10.6 |
| Birth Cohort, n, % |
|
|
|
|
| 1917-1936 |
10285 |
47.4 |
9529 |
46 |
| 1937-1945 |
5710 |
47.4 |
5267 |
25.4 |
| 1946-1951 |
5706 |
47.4 |
5925 |
28.6 |
| Ever Actively Smoked (≤ 1992), n, % |
20010 |
47.4 |
61 |
0.3 |
| Duration of Active Smoking, years, Mean, SD |
31.1 |
47.4 |
- |
- |
|
n=21686 |
|
|
|
| Respondent, n, % |
|
|
|
|
| Self |
12624 |
58.2 |
12519 |
60.4 |
| Surrogate |
9077 |
41.8 |
8202 |
39.6 |
| Ethnicity, n, % |
|
|
|
|
| Han Chinese |
21122 |
97.3 |
20116 |
97.1 |
| Other |
579 |
2.7 |
605 |
2.9 |
| Education, n, % |
|
|
|
|
| Illiterate |
11748 |
54.1 |
15885 |
76.7 |
| Primary School |
8073 |
37.2 |
4352 |
21 |
| Middle/Vocational School or Higher |
1880 |
8.7 |
484 |
2.3 |
| Other work besides farming (≤ 1992), n, % |
4816 |
22.2 |
1193 |
5.8 |
| Ever worked as a miner (≤ 1992), n, % |
1117 |
5.1 |
28 |
0.1 |
| Age at which started cooking, years, Mean, SD |
27.8 |
14.7 |
18.3 |
3.7 |
|
n=1836 |
|
n=20315 |
|
| Average sleep duration (≤ 1992), hours/day, Mean, SD |
|
|
|
|
| 21-30 years |
8.3 |
0.8 |
8.3 |
0.7 |
|
n=21700 |
|
n=20721 |
|
| 31-40 years |
8.1 |
0.7 |
8.1 |
0.7 |
|
n=21647 |
|
n=20684 |
|
| 41-50 years |
8 |
0.7 |
8 |
0.7 |
|
n=21308 |
|
n=20419 |
|
| 51-60 years |
7.9 |
0.8 |
7.9 |
0.8 |
|
n=12590 |
|
n=11527 |
|
| 61-70 years |
7.8 |
1 |
7.8 |
1 |
|
n=6184 |
|
n=5698 |
|
| ≥71 years |
7.7 |
1.2 |
7.7 |
1.2 |
|
n=1452 |
|
n=1275 |
|
| Average time indoor activities (≤ 1992), hours/day, Mean, SD |
|
|
|
|
| 21-30 years |
3.3 |
1.3 |
3.5 |
1.3 |
|
n=21693 |
|
n=20721 |
|
| 31-40 years |
3.4 |
1.3 |
3.6 |
1.3 |
|
n=21639 |
|
n=20682 |
|
| 41-50 years |
3.5 |
1.3 |
3.7 |
1.3 |
|
n=21299 |
|
n=20415 |
|
| 51-60 years |
3.7 |
1.3 |
3.9 |
1.4 |
|
n=12585 |
|
n=11525 |
|
| 61-70 years |
3.9 |
1.4 |
4 |
1.4 |
|
n=6183 |
|
n=5693 |
|
| ≥71 years |
4.2 |
1.5 |
4.3 |
1.5 |
|
n=1448 |
|
n=1273 |
|
| Fuel type used in first residence (≤1992), n, % |
|
|
|
|
| Smoky Coal |
14306 |
65.9 |
13153 |
63.5 |
| Smokeless Coal |
5447 |
25.1 |
4848 |
23.4 |
| Coal Cakes and Others |
1948 |
9 |
2720 |
13.1 |
| Stove improvement (≤ 1992), n, % |
12529 |
58 |
12186 |
59 |
| Average tons of fuel used in residences (≤1992), Mean, SD |
3.2 |
1.2 |
3.2 |
1.2 |
| Average number people in residences (≤1992), Mean, SD |
5.2 |
1.2 |
5.3 |
1.1 |
| Average number of rooms in residences (≤1992), Mean, SD |
1.7 |
0.8 |
1.7 |
0.8 |
| Cases of Lung Cancer Death (1976-1991), n, % |
1094 |
5 |
1064 |
5.1 |
| Cases of Lung Cancer Death (1992-1993), n, % |
164 |
0.8 |
153 |
0.7 |
| Cases of Lung Cancer Death (1994-2011), n, % |
1337 |
6.2 |
1017 |
4.9 |
| Average Age of Death from Lung Cancer (1976-2011), Mean, SD |
60 |
10.2 |
59.2 |
9.9 |
| Family History of Any Cancer (≤ 1992), n, % |
1023 |
4.7 |
710 |
3.4 |
