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Table 4 Multivariable linear regression models for foot orthoses at weeks 4 and 12

From: Predictors of response to foot orthoses and corticosteroid injection for plantar heel pain

Dependent variable   Unstandardised coefficients Standardised coefficients     
Modela β SE β β t-value P-valueb R2 Adjusted R2
Week 4
 Foot pain Ankle dorsiflexion – knee extended 0.813 0.377 0.309 2.15 0.037 0.25 0.16*
 Foot function FACS −0.271 0.132 −0.318 −2.06 0.047 0.49 0.43*
 First-step pain Ankle dorsiflexion – knee extended −1.327 0.529 −0.353 −2.51 0.016 0.24 0.15
Week 12
 Foot pain BMI −1.237 0.424 −0.389 −2.92 0.006 0.39 0.33*
Duration of symptoms −0.364 0.175 −0.251 −2.08 0.044   
 Foot function BMI −0.671 0.288 −0.298 −2.33 0.025 0.42 0.37*
 First-step pain BMI 1.220 0.430 0.406 2.83 0.007 0.25 0.19*
Age −0.503 0.228 −0.276 −2.20 0.033   
  1. Abbreviations: SE standard error, FACS Fear-Avoidance Components Scale, BMI body mass index
  2. aAdjusted for age, sex, BMI, and baseline scores of the dependent variable
  3. bThe p-value represents the statistical significance of individual variables
  4. * The p-value of the adjusted R2 was < 0.05