TABLE 4.
Multivariate Logistic Regression Models for Lung Cancer Among Women and Men Who Worked in Comparable Job Categories
| Women (N = 552)
|
Men (N = 560)
|
|||
|---|---|---|---|---|
| Independent Variable | AOR | 95% CI | AOR | 95% CI |
| Main predictor variable | ||||
| Category of job held the longest | ||||
| Professional-technical-managerial | Referent | Referent | ||
| Clerical-sales | 1.79 | 1.05–3.07 | 0.99 | 0.49–1.99 |
| Service | 2.04 | 0.98–4.23 | 1.25 | 0.64–2.45 |
| Agricultural-fishery-forestry-processing-machine trades-benchwork* | 1.11 | 0.40–3.06 | 1.03 | 0.54–1.94 |
| Structural work | † | † | 1.13 | 0.55–2.30 |
| Miscellaneous‡ | 4.54 | 1.69–12.19 | 1.69 | 0.79–3.59 |
| Covariate | ||||
| Smoking status | ||||
| Never | Referent | Referent | ||
| Former | 1.54 | 0.78–3.02 | 2.13 | 1.05–4.30 |
| Current | 5.21 | 2.20–12.33 | 5.72 | 2.44–13.41 |
| Packyears of cigarettes smoked | 1.05 | 1.04–1.07 | 1.03 | 1.02–1.04 |
| ETS exposure§ | ||||
| None | Referent | Referent | ||
| Low | 0.78 | 0.24–2.51 | 0.65 | 0.23–1.88 |
| Moderate | 1.47 | 0.48–4.50 | 0.53 | 0.19–1.53 |
| High | 1.57 | 0.49–4.99 | 0.83 | 0.29–2.42 |
| Race (black) | 2.44 | 1.49–3.99 | 2.04 | 1.30–3.20 |
| Age (yr) | 1.01 | 0.98–1.03 | 0.99 | 0.97–1.01 |
| History of lung illness3 | 3.79 | 1.71–8.41 | 1.72 | 0.86–3.44 |
| Family history of cancer | ¶ | ¶ | 1.44 | 0.90–2.30 |
*
Pooled into one category because of sparse numbers.
†
Number too small for analysis.
‡
Includes truck driver, transportation, packaging, and material handling occupations.
§
Environmental tobacco smoke (ETS) exposure: none, no exposure in childhood, adulthood, or workplace; low, any one of those three exposures; moderate, two of those three exposures; high, all of those three exposures.
||
xcluding asbestosis.
¶
Family history of cancer was not significant in women and therefore it was not included in the model.
AOR indicates adjusted odds ratio; CI, confidence interval.