Table 1.
Characteristics of the participants in the prospective cohort by gender and serum total bilirubin levels a
| Characteristics | Men (N = 202,902), N (%)
|
Women (N = 222,758), N (%)
|
||||||
|---|---|---|---|---|---|---|---|---|
| Total | Total bilirubin level (mg/dL)
|
Total | Total bilirubin level (mg/dL)
|
|||||
| >1 | 0.75–1 | <0.75 | >0.82 | 0.61–0.82 | <0.61 | |||
|
|
|
|
|
|||||
| Total | 202,902 | 67,841 (33.4) | 65,540 (32.3) | 69,521 (34.3) | 222,758 | 75,189 (33.8) | 72,207 (32.4) | 75,362 (33.8) |
| Age (y), mean (SD) | 41 (14) | 40 (14) | 42 (14) | 41 (14) | 41 (14) | 41 (14) | 42 (14) | 41 (13) |
| 20–39 | 112,584 (55.5) | 39,399 (35.0) | 35,270 (31.3) | 37,915 (33.7) | 119,946 (53.9) | 41,854 (34.9) | 37,510 (31.3) | 40,582 (33.8) |
| 40–59 | 63,447 (31.3) | 19,927 (31.4) | 21,201 (33.4) | 22,319 (35.2) | 76,087 (34.2) | 23,908 (31.4) | 25,500 (33.5) | 26,679 (35.1) |
| ≥60 | 26,871 (13.2) | 8,515 (31.7) | 9,069 (33.8) | 9,287 (34.6) | 26,725 (12) | 9,427 (35.3) | 9,197 (34.4) | 8,101 (30.3) |
| BMI (kg/m2), mean (SD) | 23.9 (3.4) | 23.5 (3.3) | 23.9 (3.3) | 24.2 (3.4) | 22.3 (3.6) | 21.8 (3.5) | 22.3 (3.6) | 22.8 (3.7) |
| <25 | 134,591 (66.4) | 47,499 (35.3) | 43,264 (32.1) | 43,828 (32.6) | 176,567 (79.3) | 62,056 (35.2) | 57,139 (32.4) | 57,372 (32.5) |
| 25–29.9 | 59,734 (29.5) | 18,062 (30.2) | 19,565 (32.8) | 22,107 (37.0) | 38,454 (17.3) | 11,040 (28.7) | 12,660 (32.9) | 14,754 (38.4) |
| ≥30 | 8,516 (4.2) | 2,264 (26.6) | 2,696 (31.7) | 3,556 (41.8) | 7,689 (3.5) | 2,080 (27.1) | 2,394 (31.1) | 3,215 (41.8) |
| Educational levels | ||||||||
| Middle school or lower | 40,499 (20.6) | 12,823 (31.7) | 13,379 (33.0) | 14,297 (35.3) | 70,385 (32.6) | 23,109 (32.8) | 23,546 (33.5) | 23,730 (33.7) |
| High school | 45,601 (23.2) | 14,665 (32.2) | 14,693 (32.2) | 16,243 (35.6) | 54,124 (25.1) | 17,238 (31.9) | 17,186 (31.8) | 19,700 (36.4) |
| Junior college | 45,367 (23.1) | 15,705 (34.6) | 14,526 (32.0) | 15,136 (33.4) | 42,941 (19.9) | 15,153 (35.3) | 13,525 (31.5) | 14,263 (33.2) |
| College or higher | 64,987 (33.1) | 22,603 (34.8) | 20,844 (32.1) | 21,540 (33.2) | 48,400 (22.4) | 17,428 (36.0) | 15,692 (32.4) | 15,280 (31.6) |
| Smoking status | ||||||||
| Non-smoker | 92,864 (47.9) | 35,175 (37.9) | 30,188 (32.5) | 27,501 (29.6) | 188,685 (91.7) | 64,488 (34.2) | 61,534 (32.6) | 62,663 (33.2) |
| Smoker | 101,092 (52.1) | 29,632 (29.3) | 32,451 (32.1) | 39,009 (38.6) | 17,123 (8.3) | 4,891 (28.6) | 5,228 (30.5) | 7,004 (40.9) |
| <30 pack-years | 72,153 (74.9) | 21,843 (30.3) | 23,084 (32.0) | 27,226 (37.7) | 14,662 (91.7) | 4,303 (29.4) | 4,403 (30.0) | 5,956 (40.6) |
| ≥30 pack-years | 24,146 (25.1) | 6,269 (26.0) | 7,777 (32.2) | 10,100 (41.8) | 1,327 (8.3) | 279 (21) | 434 (32.7) | 614 (46.3) |
| Lung cancer incidence | 809 (0.4) | 215 (26.6) | 270 (33.4) | 324 (40.1) | 524 (0.2) | 155 (29.6) | 187 (35.7) | 182 (34.7) |
| Lung cancer mortality | 614 (0.3) | 147 (23.9) | 214 (34.9) | 253 (41.2) | 330 (0.2) | 107 (32.4) | 115 (34.9) | 108 (32.7) |
a
Percentage may not total 100 because of rounding.