Table 1 Baseline subject characteristics according to serum adiponectin levels (μg/mL).
Total | Tertile 1 (< 12.08) | Tertile 2 (12.09–19.69) | Tertile 3 (≥ 19.72) | P value | |
|---|---|---|---|---|---|
Number | 2402 | 802 | 800 | 800 | |
Serum adiponectin levelss, μg/mL | 17.3 ± 9.3 | 8.3 ± 2.6 | 15.7 ± 2.2 | 27.9 ± 7.3 | < 0.001 |
Age, years | 64 ± 8.2 | 62.8 ± 7.8 | 64.2 ± 8.0 | 64.9 ± 8.7 | < 0.001 |
BMI, kg/m2 | 24.4 ± 2.9 | 24.8 ± 2.7 | 24.6 ± 2.8 | 23.8 ± 3.1 | < 0.001 |
Sex (male) (%) | 1042 (43.4) | 513 (64.0) | 335 (41.9) | 194 (24.3) | < 0.001 |
Current smoker (%) | 293 (12.2) | 144 (18.0) | 84 (10.5) | 65 (8.1) | < 0.001 |
Current alcohol drinker (%) | 1197 (49.8) | 489 (70.0) | 387 (48.4) | 321 (40.1) | < 0.001 |
Education, above high school (%) | 776 (32.3) | 323 (40.3) | 245 (30.6) | 208 (26.0) | < 0.001 |
Physical activity (%) | 394 (16.4) | 167 (20.8) | 116 (14.5) | 111 (13.9) | < 0.001 |
Knee | |||||
Total score | 14.5 ± 6.9 | 13.2 ± 6.4 | 14.9 ± 7.0 | 15.3 ± 7.1 | < 0.001 |
Osteophyte score | 7.6 ± 3.7 | 7.0 ± 3.4 | 7.9 ± 3.8 | 7.9 ± 3.9 | < 0.001 |
JSN score | 6.0 ± 2.6 | 5.5 ± 2.5 | 6.2 ± 2.5 | 6.5 ± 2.5 | < 0.001 |
Tibial attrition score | 0.2 ± 0.6 | 0.2 ± 0.6 | 0.3 ± 0.6 | 0.2 ± 0.6 | 0.136 |
Sclerosis score | 0.6 ± 0.9 | 0.5 ± 0.9 | 0.6 ± 0.9 | 0.7 ± 1.0 | 0.010 |
Hand | |||||
Total score | 16.9 ± 6.3 | 16.1 ± 5.8 | 17.0 ± 6.3 | 17.7 ± 6.6 | < 0.001 |
Osteophyte score | 6.5 ± 2.1 | 6.5 ± 2.2 | 6.5 ± 2.1 | 6.4 ± 2.0 | 0.448 |
JSN score | 8.6 ± 3.3 | 8.0 ± 3.1 | 8.6 ± 3.3 | 9.1 ± 3.4 | < 0.001 |
Subchondral cyst score | 1.0 ± 1.3 | 0.8 ± 1.1 | 1.0 ± 1.2 | 1.3 ± 1.4 | < 0.001 |
Sclerosis score | 0.4 ± 0.9 | 0.4 ± 0.9 | 0.4 ± 0.9 | 0.4 ± 0.8 | 0.908 |
Erosion score | 0.3 ± 1.0 | 0.3 ± 1.0 | 0.3 ± 0.9 | 0.3 ± 1.0 | 0.699 |
Malalignment score | 0.1 ± 0.5 | 0.1 ± 0.5 | 0.1 ± 0.5 | 0.1 ± 0.5 | 0.942 |
