Table 2.

Logistic regression models of cross-sectional structural and symptomatic OA (N = 3154). Both models were adjusted for age, sex, and BMI by adding these variables as predictors in the regression models.

Variable	Structural OA Odds ratio (95% CI)	Symptomatic OA Odds ratio (95% CI)
Baseline OA, N (%)	1392 (44.1)	1562 (49.8)
Phenotypes
None	1 [reference]	1 [reference]
Bone	2.76 (2.26–3.37)*	3.02 (2.46–3.72)*
Meniscus/Cartilage	22.9 (9.13–57.6)*	3.53 (2.13–5.86)*
Inflammatory	6.40 (2.89–14.1)*	5.82 (2.63–12.9)*
Hypertrophy	24.7 (8.94–68.3)*	2.96 (1.81–4.85)*
Age	1.04 (1.03–1.05)*	0.96 (0.95–0.97)*
Sex
Male	1 [reference]	1 [reference]
Female	1.09 (0.93–1.27)	1.07 (0.92–1.24)
BMI	1.10 (1.08–1.12)*	1.04 (1.03–1.06)*

“-”: not applicable, OA: osteoarthritis, CI: confidence interval, BMI: body mass index.

*: Statistically significant at P value < 0.05.