|
Characteristics
|
Number of imputed data points
|
Total (N = 8193)
|
No symptomatic KOA (N = 7378)
|
Symptomatic KOA (N = 815)
|
P
|
|---|
|
Age, mean (SD) years
|
0
|
58.82 (9.01)
|
58.73 (9.06)
|
59.60 (8.45)
|
< 0.01
|
|
Sex
|
0
| | | |
< 0.01
|
|
Male
| |
3942 (48.11)
|
3664 (49.66)
|
278 (34.11)
| |
|
Female
| |
4251 (51.89)
|
3714 (50.34)
|
537 (65.89)
| |
|
BMI, mean (SD) kg/m2
|
0
|
23.46 (3.49)
|
23.44 (3.47)
|
23.47 (3.48)
|
0.805
|
|
Waist circumference, mean (SD) cm
|
0
|
85.31 (9.58)
|
85.34 (9.54)
|
85.12 (9.56)
|
0.521
|
|
Residence area
|
0
| | | |
< 0.01
|
|
Rural, %
| |
5406 (65.98)
|
4816 (65.28)
|
590 (72.39)
| |
|
Urban, %
| |
2787 (34.02)
|
2562 (34.72)
|
225 (27.61)
| |
|
Smoke behavior
|
40
| | | |
< 0.01
|
|
No smoking, %
| |
4945 (60.36)
|
4374 (59.28)
|
571 (70.06)
| |
|
Ex-smoking, %
| |
687 (8.39)
|
624 (8.46)
|
63 (7.73)
| |
|
Current smoking, %
| |
2561 (31.26)
|
2380 (32.26)
|
181 (22.21)
| |
|
ADL/IADL difficulty
|
16
| | | |
< 0.01
|
|
No, %
| |
6283 (76.69)
|
5787 (78.44)
|
496 (60.86)
| |
|
Yes, %
| |
1910 (23.31)
|
1591 (21.56)
|
319 (39.14)
| |
|
MS
|
1312
| | | |
0.708
|
|
No, %
| |
6794 (82.92)
|
6122 (82.98)
|
672 (82.45)
| |
|
Yes, %
| |
1399 (17.08)
|
1256 (17.02)
|
143 (17.55)
| |
|
Hip fracture
|
72
| | | |
< 0.01
|
|
No, %
| |
7941 (96.92)
|
7167 (97.14)
|
774 (94.97)
| |
|
Yes, %
| |
252 (3.08)
|
211 (2.86)
|
41 (5.03)
| |
|
Depression
|
1427
| | | |
< 0.01
|
|
No, %
| |
6132 (74.84)
|
5702 (77.28)
|
430 (52.76)
| |
|
Mild, %
| |
1896 (23.14)
|
1561 (21.16)
|
335 (41.1)
| |
|
Moderate-to-severe, %
| |
165 (2.01)
|
115 (1.56)
|
50 (6.13)
| |
|
Comorbidities
|
0
| | | |
< 0.01
|
|
None, %
| |
3778 (46.11)
|
3498 (47.41)
|
280 (34.36)
| |
|
1~2, %
| |
3659 (44.66)
|
3253 (44.09)
|
406 (49.82)
| |
|
≥ 3, %
| |
756 (9.23)
|
627 (8.5)
|
129 (15.83)
| |
|
Health status
|
3
| | | |
< 0.01
|
|
Very good, %
| |
289 (3.53)
|
278 (3.77)
|
8 (0.98)
| |
|
Good, %
| |
1075 (13.12)
|
1037 (14.06)
|
38 (4.66)
| |
|
Fair, %
| |
2752 (33.59)
|
2538 (34.4)
|
214 (26.26)
| |
|
Poor, %
| |
2957 (36.09)
|
2607 (35.33)
|
350 (42.94)
| |
|
Very poor, %
| |
1120 (13.67)
|
915 (12.4)
|
205 (25.15)
| |
|
Physical Activity Score
| | | | | |
|
VPA score
|
4743
| | | |
0.507
|
|
No PA, %
| |
4942 (60.32)
|
4462 (60.48)
|
480 (58.9)
| |
|
Low level, %
| |
590 (7.20)
|
524 (7.1)
|
66 (8.1)
| |
|
Middle-to-high level, %
| |
2661 (32.48)
|
2392 (32.42)
|
269 (33.01)
| |
|
MPA score
|
4750
| | | |
< 0.01
|
|
No PA, %
| |
3192 (38.96)
|
2914 (39.5)
|
278 (34.11)
| |
|
Low level, %
| |
891 (10.88)
|
798 (10.82)
|
93 (11.41)
| |
|
Middle-to-high level, %
| |
4110 (50.16)
|
3666 (49.69)
|
444 (54.48)
| |
|
LPA score
|
4751
| | | |
0.842
|
|
No PA, %
| |
1586 (19.36)
|
1431 (19.4)
|
155 (19.02)
| |
|
Low level, %
| |
1389 (16.95)
|
1245 (16.87)
|
144 (17.67)
| |
|
Middle-to-high level, %
| |
5218 (63.69)
|
4702 (63.73)
|
516 (63.31)
| |
- ADL, activities of daily living, BMI body mass index, IADL instrumental activities of daily living, LPA light physical activity, MPA moderate physical activity, MS metabolic syndrome, PA physical activity, SD standard deviation, VPA vigorous physical activity
