Risk of MGUS among male Agricultural Health Study participants stratified by selected demographic and lifestyle factors
| Factor . | Total, n . | MGUS, n . | OR (95% CI)* . |
|---|---|---|---|
| Age, y | |||
| < 65 | 452 | 13 | 1.0 (ref) |
| 66-74 | 141 | 13 | 3.4 (1.6-7.6) |
| > 75 | 85 | 12 | 5.6 (2.4-12.6) |
| Race | |||
| White | 645 | 36 | 1.0 (ref) |
| Nonwhite | 17 | 1 | 1.3 (0.2-10.4) |
| Missing | 16 | 1 | 1.0 (0.1-8.3) |
| State | |||
| Iowa | 338 | 18 | 1.0 (ref) |
| North Carolina | 340 | 20 | 1.0 (0.5-1.9) |
| Education | |||
| < 12 | 37 | 5 | 1.0 (ref) |
| 12 | 295 | 21 | 0.7 (0.2-2.1) |
| > 12 | 320 | 11 | 0.4 (0.1-1.1) |
| Other/missing | 26 | 1 | 0.3 (0.1-2.8) |
| Smoking | |||
| Never | 374 | 22 | 1.0 (ref) |
| Current | 223 | 16 | 1.1 (0.5-2.1) |
| First-degree relative with cancer | |||
| No | 296 | 16 | 1.0 (ref) |
| Yes | 360 | 22 | 1.0 (0.5-2.0) |
| Factor . | Total, n . | MGUS, n . | OR (95% CI)* . |
|---|---|---|---|
| Age, y | |||
| < 65 | 452 | 13 | 1.0 (ref) |
| 66-74 | 141 | 13 | 3.4 (1.6-7.6) |
| > 75 | 85 | 12 | 5.6 (2.4-12.6) |
| Race | |||
| White | 645 | 36 | 1.0 (ref) |
| Nonwhite | 17 | 1 | 1.3 (0.2-10.4) |
| Missing | 16 | 1 | 1.0 (0.1-8.3) |
| State | |||
| Iowa | 338 | 18 | 1.0 (ref) |
| North Carolina | 340 | 20 | 1.0 (0.5-1.9) |
| Education | |||
| < 12 | 37 | 5 | 1.0 (ref) |
| 12 | 295 | 21 | 0.7 (0.2-2.1) |
| > 12 | 320 | 11 | 0.4 (0.1-1.1) |
| Other/missing | 26 | 1 | 0.3 (0.1-2.8) |
| Smoking | |||
| Never | 374 | 22 | 1.0 (ref) |
| Current | 223 | 16 | 1.1 (0.5-2.1) |
| First-degree relative with cancer | |||
| No | 296 | 16 | 1.0 (ref) |
| Yes | 360 | 22 | 1.0 (0.5-2.0) |
OR indicates odds ratio; CI, confidence interval; and NA, not applicable.
Estimates are adjusted for age.