Table 1.
Distributions of sociodemographic and consumption characteristics among lung cancer cases (n = 611) and UADT cases (n = 601) compared to cancer-free controls (n = 1,040)
| Variable | Controls N (%) |
Lung N (%) | Adjusted OR (95% CL’s) |
UADT N (%) | Adjusted OR (95% CL’s) |
|---|---|---|---|---|---|
| Age1 | |||||
| 17–34 | 51 (4.9) | 4 (0.7) | – | 32 (5.3) | – |
| 35–44 | 170 (16.3) | 57 (9.3) | – | 77 (12.8) | – |
| 45–54 | 500 (48.1) | 301 (49.3) | – | 267 (44.4) | – |
| >54 | 319 (30.7) | 249 (40.8) | – | 225 (37.4) | – |
| Sex1 | |||||
| Male | 623 (59.9) | 303 (49.6) | – | 454 (75.5) | – |
| Female | 417 (40.1) | 308 (50.4) | – | 147 (24.5) | – |
| Race/Ethnicity2 | |||||
| Caucasian | 634 (61) | 359 (58.9) | 1 (Reference) | 341 (56.9) | 1 (Reference) |
| African–American | 102 (9.8) | 96 (15.7) | 1.99 (1.38, 2.89) | 69 (11.5) | 1.05 (0.72, 1.53) |
| Hispanic | 204 (19.6) | 70 (11.5) | 0.95 (0.62, 1.45) | 109 (18.2) | 0.70 (0.48, 1.00) |
| Asian/Pacific-Islander | 62 (6.0) | 70 (11.5) | 4.70 (3.05, 7.22) | 64 (10.7) | 2.71 (1.80, 4.09) |
| Other | 37 (3.6) | 15 (2.5) | 0.67 (0.32, 1.38) | 16 (2.7) | 0.63 (0.32, 1.23) |
| Education (years of schooling)2 | |||||
| <12 | 116 (11.2) | 107 (17.5) | 1 (Reference) | 126 (21.0) | 1 (Reference) |
| 12 | 184 (17.7) | 158 (25.9) | 0.57 (0.36, 0.89) | 147 (24.5) | 0.60 (0.40, 0.90) |
| 13–15 | 272 (26.2) | 186 (30.4) | 0.56 (0.36, 0.88) | 156 (26.0) | 0.49 (0.33, 0.73) |
| 16 | 209 (20.1) | 89 (14.6) | 0.49 (0.30, 0.80) | 103 (17.1) | 0.43 (0.28, 0.67) |
| >16 | 258 (24.8) | 71 (11.6) | 0.37 (0.22, 0.61) | 69 (11.5) | 0.26 (0.17, 0.42) |
| p-trend=0.0004 | p-trend <0.0001 | ||||
| Cigarette smoking status3 | |||||
| Never | 491 (47.2) | 110 (18.0) | 1 (Reference) | 182 (30.3) | 1 (Reference) |
| Former | 371 (35.7) | 390 (63.8) | 4.34 (3.27, 5.75) | 338 (56.2) | 1.71 (1.32, 2.21) |
| Current | 177 (17.1) | 111 (18.2) | 2.30 (1.60, 3.30) | 81 (13.5) | 0.59 (0.41, 0.85) |
| Cigarette pack-years3 | |||||
| Never Smokers | 491 (47.2) | 110 (18.0) | 1 (Reference) | 182 (30.3) | 1 (Reference) |
| 20 | 355 (34.1) | 105 (17.2) | 1.41 (1.02, 1.96) | 150 (25.0) | 0.96 (0.73, 1.27) |
| >20–40 | 137 (13.2) | 213 (34.9) | 8.36 (5.86, 11.92) | 147 (24.5) | 1.88 (1.34, 2.64) |
| >40 | 56 (5.4) | 183 (30.0) | 21.59 (13.85, 33.66) | 122 (20.3) | 3.37 (2.21, 5.14) |
| p-trend < 0.0001 | p-trend <0.0001 | ||||
| Alcohol drink-years4 | |||||
| Never Drinkers | 264 (25.4) | 170 (27.8) | 1 (Reference) | 117 (19.5) | 1 (Reference) |
| 40 | 586 (56.3) | 260 (42.6) | 0.67 (0.49, 0.90) | 232 (38.6) | 0.94 (0.70, 1.27) |
| >40 | 189 (18.2) | 180 (29.5) | 0.77 (0.52, 1.14) | 250 (41.6) | 1.78 (1.26, 2.51) |
| p-trend = 0.14 | p-trend=0.0007 |
1
Age and sex are matching variables and their odds ratios are not valid.
2
Models for race/ethnicity and education adjusted for each other, plus age, sex, pack-years and drink-years.
3
Models adjusted for age, race/ethnicity, sex, education and drink-years.
4
Models adjusted for age, race/ethnicity, sex, education and smoking pack-years.