Table 1.
Distribution of fuel use and demographics by ventilation in the Shanghai Women’s Health Study, 1996–2000
| Ever Poor Ventilation
|
Never Poor Ventilation
|
P-value* | |||
|---|---|---|---|---|---|
| n=14069 | (%) | n=57251 | (%) | ||
| Age, years | |||||
| Mean, SD | 52.58 | (8.93) | 51.66 | (8.94) | <0.0001 |
| Follow-up Time, years | |||||
| Mean, SD | 10.93 | (1.56) | 11.06 | (1.45) | <0.0001 |
| Family History of Lung Cancer (1st degree relative) | |||||
| Yes | 207 | (1.47) | 768 | (1.34) | 0.23 |
| No | 13862 | (98.53) | 56483 | (98.66) | |
| Occupation | |||||
| Technical/Professional | 2810 | (20.05) | 15379 | (26.95) | <0.0001 |
| Government, Political, Legal | 421 | (3.05) | 2213 | (3.88) | |
| Administrative | 2953 | (21.05) | 11780 | (20.64) | |
| Manufacturing | 7825 | (55.85) | 27694 | (48.53) | |
| Family Income | |||||
| <10,000¥ | 2803 | (19.92) | 8375 | (14.63) | <0.0001 |
| 10,000–20,000¥ | 5875 | (41.76) | 21392 | (37.37) | |
| 20,000–30,000¥ | 3485 | (24.77) | 16707 | (29.18) | |
| >30,000¥ | 1902 | (13.52) | 10765 | (18.8) | |
| Education | |||||
| College | 1324 | (9.41) | 8520 | (14.88) | <0.0001 |
| High School | 3427 | (24.37) | 16768 | (29.29) | |
| Middle School | 5577 | (39.65) | 21157 | (36.96) | |
| Elementary School | 3737 | (26.57) | 10801 | (18.87) | |
| Ever Benign Lung Disease (Tuberculosis, Bronchitis, Asthma) | |||||
| Yes | 2001 | (12.97) | 7425 | (14.22) | <0.0001 |
| No | 12068 | (87.03) | 49826 | (85.78) | |
| Ever ETS (Home or Work) | |||||
| Yes | 10071 | (71.58) | 40238 | (70.28) | <0.0001 |
| No | 3998 | (28.41) | 17013 | (29.71) | |
| Gas Use | |||||
| Ever | 13834 | (98.33) | 56613 | (98.89) | <0.0001 |
| Never | 235 | (1.67) | 638 | (1.11) | |
| Coal Use | |||||
| Ever | 11946 | (84.91) | 32912 | (57.49) | <0.0001 |
| Never | 2123 | (15.09) | 24339 | (42.51) | |
| Soybean Oil Use | |||||
| Ever | 13733 | (97.61) | 55785 | (97.44) | 0.24 |
| Never | 336 | (2.39) | 1466 | (2.56) | |
| Vegetable Oil Use | |||||
| Ever | 1615 | (11.48) | 5180 | (9.05) | <0.0001 |
| Never | 12454 | (88.52) | 52071 | (90.95) | |
Abbreviations: SD, ETS; *Continuous: variables: t-test; Categorical variables: chi-square test