Table 1 Characteristics of USRCC Cases and Controls
From: A case–control study of occupation/industry and renal cell carcinoma risk
Weighted distribution | ||||
|---|---|---|---|---|
Cases | Controls | |||
Variables | N | %a,b | N | %a,b |
Total | 1,217 | 1,235 | ||
Race | ||||
Caucasian | 856 | 73.9 | 712 | 73.9 |
African American | 361 | 26.1 | 523 | 26.1 |
Sex | ||||
Males | 720 | 61.8 | 689 | 61.4 |
Females | 497 | 38.2 | 546 | 38.6 |
Age at Reference Date | ||||
<45 | 147 | 10.5 | 179 | 10.5 |
45-54 | 287 | 21.6 | 270 | 21.6 |
55-64 | 372 | 29.4 | 350 | 29.4 |
65-74 | 303 | 27.1 | 329 | 27.1 |
75+ | 108 | 11.5 | 107 | 11.5 |
Mean Age | 59.9 years | 59.9 years | ||
Study Center | ||||
Detroit | 1,018 | 83.3 | 1,038 | 82.7 |
Chicago | 199 | 16.7 | 197 | 17.3 |
Education Level | ||||
<12 years | 200 | 16.7 | 165 | 12.0 |
High School Graduate | 419 | 34.5 | 390 | 31.5 |
Some College | 328 | 26.3 | 356 | 27.3 |
College Graduate | 270 | 22.5 | 324 | 29.3 |
Smoking Status | ||||
Never | 432 | 35.3 | 471 | 38.4 |
Occasional c | 55 | 4.7 | 55 | 4.0 |
Regular Former Smoker | 410 | 34.7 | 445 | 38.0 |
Regular Current Smoker | 320 | 25.3 | 264 | 19.7 |
History of Hypertension | ||||
No | 500 | 40.8 | 718 | 59.0 |
Yes | 701 | 59.2 | 508 | 41.0 |
BMI (kg/m 2 ) d | ||||
<25 | 240 | 19.5 | 366 | 29.1 |
25-29.9 | 436 | 37.4 | 493 | 41.7 |
30-34.99 | 298 | 24.9 | 221 | 18.3 |
35+ | 230 | 18.2 | 147 | 10.9 |
Histologic RCC Subtype | ||||
Clear Cell | 709 | 58.3 | ||
Papillary | 169 | 13.9 | ||
Chromophobe | 58 | 4.8 | ||
other/NOS | 281 | 23.1 | ||