156 Chapter 7 The results from the linear regression analyses and the binomial logistic regression analyses can be found in Table 2 and Table 3. The results from the analyses showed no associations between determinants of adherence and changes in physical functioning or changes in pain when adjusted for confounders and controlling for the e-Exercise LBP intervention. Table 2 Unadjusted models and adjusted models testing the relationship between adherence and changes in pain and disability. (n=173) n Unadjusted Adjusted Model Coefficient 95%-CI Coefficient 95%-CI ODI change~ EXAS 0.07 -0.01 - 0.15 0.08 -0.00 - 0.17 NPRS change ~ EXAS -0.00 -0.02 - 0.02 -0.00 -0.02 - 0.02 ODI change ~ “stable adherence”* 78 5.21 -1.50 - 11.92 4.58 -3.09 - 10.60 ODI change ~ “increasing adherence”* 74 4.38 -2.38 - 11.13 3.71 -2.20 - 11.36 NPRS change ~ “stable adherence”* 78 -0.38 -1.75 - 0.99 -0.39 -2.00 - 0.68 NPRS change ~ “increasing adherence”* 74 -0.49 -1.87 - 0.88 -0.48 -1.76 - 0.98 95%-CI 95% Confidence Interval, ODI Oswestry Disability Index after 3 months, EXAS Exercise Adherence Scale, NPRS Numeric Pain Rating Scale after 3 months. * “declining adherence” (n=21) was used as the reference category. Models were adjusted for age, sex, body mass index, education level, Fear-Avoidance Beliefs Questionnaire score, Pain Catastrophizing Scale score, Central Sensitization Inventory score, General Self-Efficacy Scale score, Patient Activation Measure score, EuroQol-5D-5L score, and treatment group. Table 3 Unadjusted models and adjusted models testing the relationship between adherence and recovery. (n=173) n Unadjusted Adjusted Model OR 95%-CI OR 95%-CI Recovery ~ EXAS 1.01 1.00 - 1.02 1.02 1.00 - 1.03 Recovery ~ “stable adherence”* 78 0.78 0.23 - 2.68 0.82 0.23 - 3.00 Recovery ~ “increasing adherence”* 74 0.50 0.15 - 1.70 0.48 0.13 - 1.72 OR Odds Ratio, 95%-CI 95% confidence interval, Recovery patient reported recovery from low back pain, EXAS Exercise Adherence Scale. * “declining adherence” (n=21) was used as the reference category. Models were adjusted for age, sex, body mass index, education level, Fear-Avoidance Beliefs Questionnaire score, Pain Catastrophizing Scale score, Central Sensitization Inventory score, General Self-Efficacy Scale score, Patient Activation Measure score, EuroQol-5D-5L score, and treatment group.
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