Table 1. WHI Baseline Sample Description for the Sample, and By Kidney Cancer Diagnosis Status.
Data are presented as frequency (column percent) for the whole sample and frequency (row percent) for subsamples.
| Measures | Whole Sample (N=156,774) |
Without Kidney Cancer (N=156,367) |
With Kidney Cancer (N=407) |
p- value |
Trend p-value |
Age- adjusted p-value |
Age- adjusted trend p-value |
|
|---|---|---|---|---|---|---|---|---|
| N (% of population) | N (%) | |||||||
| Race and Ethnicity | Native American | 695 (0.44) | 692 | 3 (0.43) | 0.485 | 0.605 | ||
| Asian | 4,022 (2.57) | 4,015 | 7 (0.17) | |||||
| African American | 14,411 (9.19) | 14,379 | 32 (0.22) | |||||
| Hispanic | 6,414 (4.09) | 6,400 | 14 (0.22) | |||||
| White | 131,232 (83.71) | 130,881 | 351 (0.27) | |||||
| Systolic BP (mmHg) | ≤120 | 60,098 (38.35) | 59,985 | 113 (0.19) | <.0001 | <.0001 | 0.0003 | 0.003 |
| 120.1 –130 | 35,727 (22.80) | 35,630 | 97 (0.27) | |||||
| 130.1 – 140 | 28,436 (18.15) | 28,362 | 74 (0.26) | |||||
| 140.1 – 150 | 16,836 (10.74) | 16,766 | 70 (0.42) | |||||
| 150.1 – 160 | 8,880 (5.67) | 8,851 | 29 (0.33) | |||||
| > 160 | 6,730 (4.29) | 6,707 | 23 (0.34) | |||||
| Diastolic BP (mmHg) | <90 | 149,557 (95.45) | 149,179 | 378 (0.25) | 0.023 | 0.031 | 0.017 | 0.017 |
| ≥90 | 7,124 (4.55) | 7,096 | 28 (0.39) | |||||
| Hypertension Diagnoses | None | 97,722 (65.9) | 97,507 | 215 (0.22) | <.0001 | <.0001 | 0.0002 | 0.021 |
| Untreated | 12,022 (8.11) | 11,992 | 30 (0.25) | |||||
| Treated | 38,535 (25.99) | 38,395 | 140 (0.36) | |||||
| BMI (kg/m2) | 18.5 – 24.9 | 54,248 (34.60) | 54,140 | 108 (0.20) | 0.003 | <.0001 | <0.0001 | <0.0001 |
| 25.0 – 29.9 | 54,876 (35.00) | 54,732 | 144 (0.26) | |||||
| 30.0 – 34.9 | 29,298 (18.69) | 29,215 | 83 (0.28) | |||||
| 35.0 – 39.9 | 12,017 (7.67) | 11,972 | 45 (0.37) | |||||
| ≥40 | 6,335 (4.04) | 6,308 | 27 (0.43) | |||||
| Waist Circumference (cm) | ≤75 | 30,641 (19.60) | 30,583 | 58 (0.19) | <.0001 | <.0001 | <0.0001 | 0.002 |
| 75 – 81.2 | 31,943 (20.43) | 31,878 | 65 (0.20) | |||||
| 81.3 – 88.1 | 31,179 (19.94) | 31,107 | 72 (0.23) | |||||
| 88.2 – 97.9 | 31,231 (19.98) | 31,140 | 91 (0.29) | |||||
| >97.9 | 31,341 (20.05) | 31,221 | 120 (0.38) | |||||
| Smoking at baseline | Never | 78,833 (50.95) | 78,642 | 191 (0.24) | 0.167 | 0.076 | 0.085 | 0.030 |
| Past | 65,220 (42.15) | 65,045 | 175 (0.27) | |||||
| Current | 10,678 (6.90) | 10,642 | 36 (0.34) | |||||
| Diabetes at baseline | No | 147,350 (94.04) | 146,970 | 380 (0.26) | 0.564 | 0.564 | 0.669 | |
| Yes | 9,334 (5.96) | 9307 | 27 (0.29) |