Table 1 Comparison of demographic and clinical characteristics between cases (men with a BMI⩾30 kg m−2) and controls (men with a BMI <25 kg m−2) at Mayo Rochester and Mayo Florida
Mayo Rochester | Mayo Florida | |||||
|---|---|---|---|---|---|---|
ControlBMI<25 (N=1244) | CaseBMI⩾30 (N=1817) | Total (N=3061) | ControlBMI<25 (N=133) | CaseBMI⩾30 (N=206) | Total (N=339) | |
Surgery Year | ||||||
2000–2002 | 247 (19.8%) | 498 (27.4%) | 745 (24.3%) | N/A | N/A | N/A |
2003–2005 | 363 (29.1%) | 486 (26.7%) | 849 (27.7%) | N/A | N/A | N/A |
2006–2009 | 634 (51.1%) | 833 (45.9%) | 1467 (47.9%) | 104 (78.1%) | 148 (71.8%) | 252 (74.3%) |
2010–2011 | N/A | N/A | N/A | 29 (21.9%) | 58 (28.2%) | 87 (25.7%) |
Surgery Type | ||||||
RRP | 991 (79.7%) | 1419 (78.1%) | 2410 (78.7%) | 47 (35.3%) | 93 (45.1%) | 140 (41.3%) |
Laparoscopic | 253 (20.3%) | 398 (21.9%) | 651 (21.3%) | 86 (64.7%) | 113 (54.9%) | 199 (58.7%) |
Age at Surgery | ||||||
Mean (SD) | 61.9 (6.63) | 61.8 (6.16) | 61.8 (6.36) | 63.3 (7.5) | 61.9 (7.2) | 62.4 (7.3) |
Median | 62.0 | 62.0 | 62.0 | 64.2 | 62.7 | 63.0 |
Q1, Q3 | 56.5, 67.0 | 57.0, 66.0 | 57.0, 66.0 | 57.7, 68.9 | 57.5, 66.9 | 57.6, 67.5 |
Range | (50.0–80.0) | (50.0–78.0) | (50.0–80.0) | (29.9–78.4) | (43.1–78.6) | (29.9–78.6) |
Age group | ||||||
<60 | 495 (39.8%) | 685 (37.7%) | 1180 (38.5%) | 40 (30.1%) | 71 (34.5%) | 111 (32.7%) |
60⩽X<70 | 566 (45.5%) | 915 (50.4%) | 1481 (48.4%) | 72 (54.1%) | 111 (53.9%) | 183 (54.0%) |
70+ | 183 (14.7%) | 217 (11.9%) | 400 (13.1%) | 21 (15.8%) | 24 (11.7%) | 45 (13.3%) |
Pre–op PSA | ||||||
Mean (SD) | 7.0 (6.24) | 7.7 (13.30) | 7.4 (11.00) | 6.8 (6.0) | 6.6 (6.1) | 6.7 (6.0) |
Median | 5.6 | 5.7 | 5.6 | 5.2 | 5.4 | 5.3 |
Q1, Q3 | 4.1, 7.9 | 4.2, 8.0 | 4.1, 8.0 | 4.0, 7.6 | 4.2, 7.1 | 4.1, 7.3 |
Range | (0.7–93.6) | (0.1–467.0) | (0.1–467.0) | (0.1–40.7) | (0.1–54.3) | (0.1–54.3) |
PSA group | ||||||
<2 | 56 (4.5%) | 86 (4.7%) | 142 (4.6%) | 10 (7.5%) | 14 (6.8%) | 24 (7.1%) |
2⩽4 | 241 (19.4%) | 307 (16.9%) | 548 (17.9%) | 22 (16.5%) | 28 (13.6%) | 50 (14.7%) |
4⩽6 | 399 (32.1%) | 578 (31.8%) | 977 (31.9%) | 49 (36.8%) | 76 (36.9%) | 125 (36.9%) |
6⩽10 | 360 (28.9%) | 559 (30.8%) | 919 (30%) | 34 (25.6%) | 64 (31.1%) | 98 (28.9%) |
10+ | 188 (15.1%) | 287 (15.8%) | 475 (15.5%) | 18 (13.5%) | 24 (11.7%) | 42 (12.4%) |
BMI at surgery | ||||||
Mean (SD) | 23.4 (1.29) | 33.5 (6.19) | 29.4 (6.93) | 23.3 (1.4) | 33.4 (3.0) | 29.5 (5.5) |
Median | 23.7 | 32.4 | 30.6 | 23.7 | 32.7 | 30.7 |
Q1, Q3 | 22.6, 24.4 | 31.0, 34.5 | 24.1, 33.0 | 22.5, 24.4 | 31.2, 34.9 | 24.1, 33.4 |
Range | (16.2–25.0) | (30.0–208.7) | (16.2–208.7) | (18.5–25.0) | (30.0–45.5) | (18.5–45.5) |
BMI group | ||||||
<25 | 1244 (100%) | 0 (0%) | 1244 (40.6%) | 133 (100.0%) | 0 (0.0%) | 133 (39.2%) |
30⩽35 | 0 (0%) | 1430 (78.7%) | 1430 (46.7%) | 0 (0.0%) | 156 (75.7%) | 156 (46.0%) |
35⩽40 | 0 (0%) | 309 (17%) | 309 (10.1%) | 0 (0.0%) | 42 (20.4%) | 42 (12.4%) |
40+ | 0 (0%) | 78 (4.3%) | 78 (2.5%) | 0 (0.0%) | 8 (3.9%) | 8 (2.4%) |
