Table 2 Baseline characteristics of the study population according to WWI in NHANES 2011–2018
From: Weight-adjusted-waist index: an innovative indicator of breast cancer hazard
Characteristic | Weight-adjusted-waist index (cm/√kg) | P value | |||
|---|---|---|---|---|---|
[8.38,10.69), N = 2,548 | [10.69,11.28), N = 2,548 | [11.28,11.87), N = 2,548 | [11.87,14.41], N = 2,549 | ||
Age |  |  |  |  | < 0.0012 |
   < 70 | 2,454 (96.31%) | 2,291 (89.91%) | 2,101 (82.46%) | 1,825 (71.60%) |  |
   ≥ 70 | 94 (3.69%) | 257 (10.09%) | 447 (17.54%) | 724 (28.40%) |  |
Race |  |  |  |  | < 0.0012 |
   Mexican American | 182 (7.14%) | 300 (11.77%) | 435 (17.07%) | 475 (18.63%) |  |
   Non-Hispanic White | 988 (38.78%) | 897 (35.20%) | 812 (31.87%) | 996 (39.07%) |  |
   Non-Hispanic Black | 652 (25.59%) | 598 (23.47%) | 592 (23.23%) | 479 (18.79%) |  |
   Other Race | 726 (28.49%) | 753 (29.55%) | 709 (27.83%) | 599 (23.50%) |  |
Educational level |  |  |  |  | < 0.0012 |
   Below high school | 258 (10.13%) | 406 (15.93%) | 619 (24.29%) | 810 (31.78%) |  |
   High school level or equivalent | 415 (16.29%) | 546 (21.43%) | 571 (22.41%) | 608 (23.85%) |  |
   Some college or AA degree | 902 (35.40%) | 886 (34.77%) | 834 (32.73%) | 775 (30.40%) |  |
   Above college | 973 (38.19%) | 710 (27.86%) | 524 (20.57%) | 356 (13.97%) |  |
Marital status |  |  |  |  | < 0.0012 |
   Yes | 1,115 (43.76%) | 1,281 (50.27%) | 1,229 (48.23%) | 1,082 (42.45%) |  |
   No | 1,433 (56.24%) | 1,267 (49.73%) | 1,319 (51.77%) | 1,467 (57.55%) |  |
PIR | 2.53 (1.27, 4.44) | 2.24 (1.18, 4.07) | 1.91 (1.07, 3.56) | 1.63 (0.96, 2.79) | < 0.0011 |
TC (mg/dL) | 181 (160, 205) | 192 (168, 217) | 195 (173, 222) | 193 (167, 219) | < 0.0011 |
Alcohol consumption |  |  |  |  | < 0.0012 |
   Yes | 1,539 (60.40%) | 1,310 (51.41%) | 1,189 (46.66%) | 1,032 (40.49%) |  |
   No | 1,009 (39.60%) | 1,238 (48.59%) | 1,359 (53.34%) | 1,517 (59.51%) |  |
Smoking status |  |  |  |  | < 0.0012 |
   Yes | 730 (28.65%) | 816 (32.03%) | 866 (33.99%) | 947 (37.15%) |  |
   No | 1,818 (71.35%) | 1,732 (67.97%) | 1,682 (66.01%) | 1,602 (62.85%) |  |
Hypertension |  |  |  |  | < 0.0012 |
   Yes | 482 (18.92%) | 929 (36.46%) | 1,296 (50.86%) | 1,599 (62.73%) |  |
   No | 2,066 (81.08%) | 1,619 (63.54%) | 1,252 (49.14%) | 950 (37.27%) |  |
Diabetes mellitus |  |  |  |  | < 0.0012 |
   Yes | 92 (3.61%) | 254 (9.97%) | 514 (20.17%) | 832 (32.64%) |  |
   No | 2,456 (96.39%) | 2,294 (90.03%) | 2,034 (79.83%) | 1,717 (67.36%) |  |
Coronary heart disease |  |  |  |  | < 0.0012 |
   Yes | 23 (0.90%) | 36 (1.41%) | 59 (2.32%) | 139 (5.45%) |  |
   No | 2,525 (99.10%) | 2,512 (98.59%) | 2,489 (97.68%) | 2,410 (94.55%) |  |
Physical activity |  |  |  |  | < 0.0012 |
   Vigorous | 358 (14.05%) | 342 (13.42%) | 329 (12.91%) | 273 (10.71%) |  |
   Moderate | 615 (24.14%) | 590 (23.16%) | 539 (21.15%) | 534 (20.95%) |  |
   No | 1,575 (61.81%) | 1,616 (63.42%) | 1,680 (65.93%) | 1,742 (68.34%) |  |
BC |  |  |  |  | < 0.0012 |
   Yes | 36 (1.41%) | 54 (2.12%) | 69 (2.71%) | 100 (3.92%) |  |
   No | 2,512 (98.59%) | 2,494 (97.88%) | 2,479 (97.29%) | 2,449 (96.08%) |  |