Table 3 Univariate and multivariate logistic regression analyses of training cohort.
variables | Univariate model | Multivariable model | ||||
|---|---|---|---|---|---|---|
OR | 95%CI | P value | OR | 95%CI | P value | |
Age, year | ||||||
< 60 | ||||||
≥ 60 | 2.188 | 1.577–3.037 | < 0.001 | 2.873 | 1.983–4.215 | < 0.001 |
Gender | ||||||
Female | ||||||
Male | 0.405 | 0.289–0.568 | < 0.001 | 0.578 | 0.397–0.835 | 0.004 |
Race | ||||||
Other | ||||||
White or Caucasian | 0.323 | 0.236–0.443 | < 0.001 | 0.459 | 0.319–0.660 | < 0.001 |
Marital status | ||||||
Other | ||||||
Married | 0.419 | 0.307–0.571 | < 0.001 | 0.827 | 0.570–1.204 | 0.318 |
Education | ||||||
None/primary | ||||||
Secondary | 0.738 | 0.541–1.005 | 0.052 | |||
Tertiary | 0.647 | 0.456–0.918 | 0.012 | |||
Income, $ | ||||||
< 50,000 | ||||||
≥ 50,000 | 0.330 | 0.240–0.455 | < 0.001 | 0.644 | 0.443–0.933 | 0.020 |
Smoking history | ||||||
No | ||||||
Yes | 1.140 | 0.837–1.554 | 0.404 | |||
Drinking history | ||||||
No | ||||||
Yes | 0.532 | 0.381–0.744 | < 0.001 | |||
Obesity | ||||||
No | ||||||
Yes | 2.377 | 1.725–3.275 | < 0.001 | 1.874 | 1.320–2.674 | < 0.001 |
Depressive symptoms | ||||||
No | ||||||
Yes | 2.442 | 1.666–3.579 | < 0.001 | 1.906 | 1.220–2.959 | 0.004 |
Comorbidity | ||||||
No | ||||||
Yes | 2.112 | 1.535–2.906 | < 0.001 | 1.438 | 1.008–2.043 | 0.044 |
History of knee injury | ||||||
No | ||||||
Yes | 1.264 | 0.681–2.347 | 0.466 | |||
History of knee surgery | ||||||
No | ||||||
Yes | 0.725 | 0.523–1.005 | 0.050 | |||
KLG | ||||||
2 | ||||||
3 | 1.259 | 0.923–1.717 | 0.147 | |||
4 | 0.982 | 0.645–1.495 | 0.932 | |||
WOMAC pain | ||||||
< 5 | ||||||
≥ 5 | 2.511 | 1.780–3.504 | < 0.001 | 1.761 | 1.227–2.546 | 0.002 |
