Selection of predictors and potential confounders for SB and MVPA at 6 and 12 months post-surgery
disability, Oswestry Disability
REGRESSION
The selection of predictors and potential confounders were based on a revised version of the fear-avoidance model presented in detail in Lotzke et al. [To prevent potential overfitting in the regression models (described below), the number of included potential confounders was limited. As a result, educational attainment and disability measured with the Oswestry Disability Index 2.0 (ODI) [