Multiple regression analysis. Evaluation of low back pain syndrome (preliminary report).

In the objective judgment of the therapeutic effects and in the comparison of results in institutions and treatment methods, it is essential to introduce the technique of scientific and statistical analysis, in the clinical evaluation. We have tried to clinically evaluate lumbago and sciatica using the technique of multiple regression analysis. Selection of evaluation item and allocation of scores to the item were carried out in 104 patients. Multiple regression analysis was carried out in all patients and the standard regression coefficient showed a correlation with criterion variable (dependent Y) in the order of walking, pain, posture, paralytic symptom in lower limbs and SLR (straight leg raising test). The proportion was 0.69, which seems to be a nearly valid value when other factors are considered.