Table 2 Baseline characteristics of participants according to the oxidative balance score’s quartile
From: Oxidative balance scores and gallstone disease: mediating effects of oxidative stress
Characteristic | Overall N = 6,196 (100%)1 | Q1 N = 1,643 (22%)1 | Q2 N = 1,558 (26%)1 | Q3 N = 1,604(27%)1 | Q4 N = 1,391(25%)1 | P -Value2 |
|---|---|---|---|---|---|---|
Age, years | 48.39 ± 17.32 | 48.31 ± 17.63 | 48.98 ± 17.20 | 48.38 ± 17.35 | 47.91 ± 17.11 | 0.6 |
Sex | Â | Â | Â | Â | Â | 0.50 |
 Male | 2,995 (48.31%) | 809 (49.96%) | 768 (49.49%) | 750 (46.20%) | 668 (47.96%) |  |
 Female | 3,201 (51.69%) | 834 (50.04%) | 790 (50.51%) | 854 (53.80%) | 723 (52.04%) |  |
Race |  |  |  |  |  | < 0.001 |
 Hispanic | 718 (8.33%) | 121 (5.42%) | 175 (8.08%) | 206 (8.94%) | 216 (10.46%) |  |
 Non-Hispanic white | 2,359 (64.17%) | 558 (60.86%) | 616 (64.62%) | 642 (65.91%) | 543 (64.71%) |  |
 Non-Hispanic black | 1,546 (10.57%) | 601 (17.19%) | 371 (10.45%) | 345 (9.06%) | 229 (6.58%) |  |
Other races | 1,573 (16.93%) | 363 (16.53%) | 396 (16.85%) | 411 (16.09%) | 403 (18.25%) | Â |
Marital status |  |  |  |  |  | < 0.001 |
 Never married | 1,155 (18.89%) | 380 (24.35%) | 253 (16.35%) | 273 (17.93%) | 249 (17.75%) |  |
 Married | 3,645 (62.60%) | 816 (54.04%) | 950 (63.61%) | 1,010 (65.49%) | 869 (65.89%) |  |
 Separated | 1,396 (18.51%) | 447 (21.61%) | 355 (20.04%) | 321 (16.57%) | 273 (16.37%) |  |
Education Level |  |  |  |  |  | < 0.001 |
 < High school | 1,029 (9.96%) | 325 (13.38%) | 264 (9.71%) | 231 (9.18%) | 209 (8.08%) |  |
 High school | 1,479 (27.46%) | 491 (36.31%) | 391 (29.08%) | 344 (23.95%) | 253 (21.90%) |  |
 > High school | 3,688 (62.59%) | 827 (50.31%) | 903 (61.21%) | 1,029 (66.87%) | 929 (70.02%) |  |
PIR |  |  |  |  |  | < 0.001 |
 < 1.3 | 1,726 (19.38%) | 613 (27.46%) | 409 (19.23%) | 386 (16.74%) | 318 (15.37%) |  |
 1.3–3.5 | 2,397 (34.02%) | 635 (35.96%) | 623 (34.81%) | 636 (32.96%) | 503 (32.67%) |  |
 > 3.5 | 2,073 (46.60%) | 395 (36.59%) | 526 (45.97%) | 582 (50.30%) | 570 (51.96%) |  |
Hypertension |  |  |  |  |  | < 0.001 |
 No | 3,834 (66.76%) | 923 (61.53%) | 921 (63.21%) | 1,016 (67.99%) | 974 (73.56%) |  |
 Yes | 2,362 (33.24%) | 720 (38.47%) | 637 (36.79%) | 588 (32.01%) | 417 (26.44%) |  |
Diabetes | Â | Â | Â | Â | Â | 0.042 |
 No | 5,252 (88.60%) | 1,351 (86.86%) | 1,279 (86.52%) | 1,384 (90.63%) | 1,238 (90.05%) |  |
 Yes | 944 (11.40%) | 292 (13.14%) | 279 (13.48%) | 220 (9.37%) | 153 (9.95%) |  |
Albumin (g/L) | 41.15 ± 3.33 | 40.79 ± 3.37 | 41.22 ± 3.29 | 41.18 ± 3.41 | 41.40 ± 3.21 | 0.025 |
Uric acid(mg/dL) | 5.30 (4.40, 6.20) | 5.50 (4.50, 6.40) | 5.30 (4.40, 6.20) | 5.20 (4.30, 6.10) | 5.10 (4.30, 6.10) | 0.014 |
GGT(IU/L) | 29.16 ± 36.53 | 31.01 ± 38.81 | 31.64 ± 46.83 | 27.96 ± 30.80 | 26.28 ± 26.72 | 0.2 |
Bilirubin(mg/dL) | 0.47 ± 0.29 | 0.45 ± 0.25 | 0.49 ± 0.31 | 0.50 ± 0.34 | 0.46 ± 0.26 | 0.018 |