Characteristic 0, N = 1,8441 1, N = 1661 p-value2
Age 63 (56, 70) 69 (62, 74) <0.001
Sex 0.019
    1 815 (44%) 89 (54%)
    2 1,029 (56%) 77 (46%)
Race 0.045
    1 1,418 (77%) 139 (84%)
    2 425 (23%) 27 (16%)
    Missing 1 0
BMI 0.012
    (16.9,25.1] 305 (17%) 36 (22%)
    (25.1,28.2] 433 (24%) 45 (27%)
    (28.2,31.7] 513 (28%) 51 (31%)
    (31.7,48.7] 590 (32%) 33 (20%)
    Missing 3 1
Education Level 0.12
    1 322 (18%) 37 (22%)
    2 1,509 (82%) 128 (78%)
    Missing 13 1
Weekly Alcohol Consumtpion 0.7
    0 365 (20%) 33 (20%)
    1 683 (37%) 54 (33%)
    2 246 (13%) 28 (17%)
    3 267 (15%) 22 (13%)
    4 171 (9.3%) 16 (9.8%)
    5 97 (5.3%) 11 (6.7%)
    Missing 15 2
Smoking Status 0.2
    0 974 (53%) 79 (48%)
    1 114 (6.3%) 7 (4.3%)
    2 733 (40%) 78 (48%)
    Missing 23 2
Physical Activity Scale for the Elderly score 145 (95, 206) 142 (86, 204) 0.6
    Missing 13 1
Family history of Knee Replacement 0.15
    0 1,546 (85%) 146 (89%)
    1 276 (15%) 18 (11%)
    Missing 22 2
History of ambulation-altering knee injury 0.087
    0 1,231 (67%) 100 (60%)
    1 612 (33%) 66 (40%)
    Missing 1 0
P02KINJ 0.10
    0 963 (53%) 76 (46%)
    1 865 (47%) 89 (54%)
    Missing 16 1
1 Median (IQR); n (%)
2 Wilcoxon rank sum test; Pearson's Chi-squared test