Association of frontal plane knee alignment with foot posture in patients with medial knee osteoarthritis

Table 2 Regression coefficient from multiple regression analysis, characterizing the association between increased corrected AAA (per degree) and three-dimensional foot posture (n = 88 knees)

Dependent variables	Beta (95% CI) of corrected AAA, per degree*
Dependent variables	Crude model	Adjusted model
Hallux valgus angle	−0.40 (−0.71, −0.09)*	−0.40 (−0.72, −0.09)*
Navicular height	−0.02 (−0.32, 0.29)	0.08 (−0.21, 0.38)
Navicular height/foot length	−0.002 (−0.13, 0.12)	0.03 (−0.10, 0.15)
Calcaneus angle relative to floor	0.31 (0.09, 0.53)**	0.33 (0.10, 0.56)**
Rearfoot angle	−0.10 (−0.27, 0.06)	−0.09 (−0.26, 0.08)

95% CI = 95% confidence interval; AAA = anatomical axis angle
The value of regression of coefficient (beta) for each dependent variable is described per degree of AAA (continuous) to indicate the predictive ability using 2 cumulative models of multiple regression analyses
Adjusted model includes values derived from multiple regression analysis with age, (continuous), sex (0: male, 1: female), and body mass index (continuous) entered simultaneously (one-step model) as predictors
*P < 0.05, **P < 0.01. Bold indicates a statistically significant result

ISSN: 1471-2474