Characteristic N1 Osteoarthritis P Value3
Overall, N = 15567 (100%)2 **Non-OA **, N = 9482 (63%)2 **OA **, N = 6085 (37%)2
Age (years) 15567 56.0 (48.0, 66.0) 53.0 (46.0, 62.0) 62.0 (53.0, 71.0) <0.001
Sex 15567


<0.001
    female
7937 (53%) 4345 (48%) 3592 (61%)
    male
7630 (47%) 5137 (52%) 2493 (39%)
PIR 15567 3.37 (1.76, 5.00) 3.63 (1.93, 5.00) 2.90 (1.52, 5.00) <0.001
Education 15567


<0.001
    9-11th grade
2114 (9.8%) 1224 (9.1%) 890 (11%)
    College graduate or above
3555 (30%) 2461 (33%) 1094 (24%)
    High school graduate
3747 (25%) 2179 (24%) 1568 (27%)
    Less than 9th grade
1799 (5.5%) 1032 (4.8%) 767 (6.6%)
    Some college or AA degree
4352 (30%) 2586 (29%) 1766 (32%)
Race 15567


<0.001
    Non-Hispanic White
7647 (75%) 4238 (73%) 3409 (79%)
    Non-Hispanic Black
3255 (9.3%) 1950 (9.3%) 1305 (9.2%)
    Mexican American
2032 (5.4%) 1422 (6.5%) 610 (3.6%)
    Other Race-Including Multi-Racial
1442 (6.1%) 1079 (6.8%) 363 (5.0%)
    Other Hispanic
1191 (4.0%) 793 (4.5%) 398 (3.2%)
BMI (Kg/m2) 15567 28 (25, 33) 28 (24, 32) 29 (26, 34) <0.001
Hypertension 15567 7537 (43%) 3798 (36%) 3739 (56%) <0.001
Smoking 15567


<0.001
    Nonsmoker
7808 (51%) 5057 (54%) 2751 (46%)
    Smoker
7759 (49%) 4425 (46%) 3334 (54%)
Alcohol 15567


0.002
    Dinker
11359 (78%) 7017 (79%) 4342 (76%)
    Nondinker
4208 (22%) 2465 (21%) 1743 (24%)
Diabetes 15567 2745 (13%) 1369 (11%) 1376 (18%) <0.001
SII 15567 494 (360, 693) 492 (358, 686) 501 (365, 706) 0.016
LMC 15567


<0.001
    1
7495 (47%) 3315 (34%) 4180 (67%)
    2
3661 (24%) 2417 (26%) 1244 (20%)
    3
4411 (30%) 3750 (40%) 661 (12%)
1 N not Missing (unweighted)
2 median (IQR) for continuous; n (%) for categorical
3 Design-based KruskalWallis test; Pearson’s X^2: Rao & Scott adjustment