Logistic and ordered logit regression analysis to assess the risk of having ROA in relation to quartiles of UCTX-II level
| UCTX-II quartiles (ng/mmol creatine) | Adjusted OR (95% CI)* | ||||
|---|---|---|---|---|---|
| Hip† | Hand† | Facet† | Knee† | Total ROA‡ | |
| *Analysis were adjusted for age, body mass index, sex, and the presence of ROA in the joint sites that were not the dependent variable. | |||||
| †The joint site specific ROA scores were dichotomised and used as the dependent variable in the logistic regression analysis. | |||||
| ‡The total ROA score was divided into four categories and used as the dependent variable in an ordered logit regression analysis. | |||||
| CI, confidence interval; DD, spinal disc degeneration; OR, odds ratio; ROA, radiographic osteoarthritis; UCTX-II, urinary level of type II collagen C-telopeptide. | |||||
| 44.3 to 147.4 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| 147.4 to 218.9 | 2.3 (0.9 to 5.4) | 1.3 (0.6 to 2.6) | 1.2 (0.6 to 2.4) | 1.2 (0.5 to 2.5) | 1.5 (0.9 to 2.8) |
| 218.9 to 328.1 | 5.6 (2.2 to 14.2) | 2.4 (1.1 to 5.1) | 2.1 (1.0 to 4.3) | 1.5 (0.7 to 3.3) | 4.3 (2.3 to 8.2) |
| 328.1 to 1390.5 | 7.7 (3.0 to 19.7) | 2.7 (1.3 to 5.8) | 4.3 (1.9 to 9.7) | 2.6 (1.2 to 5.7) | 7.7 (4.0 to 14.8) |