A controlled clinical trial was conducted to evaluate the efficacy of chiropractic adjustments in the treatment of low-back pain among Egyptian workers. One hundred and forty-five patients meeting specific criteria were examined by a joint medical/chiropractic team and randomly assigned to one of three treatment groups. The treatments, administered by a second medical/chiropractic team, were composed of chiropractic adjustments, drugs and bed rest, or placebo. The trial employed a double blind, pre-test/post-test control group design. Data were collected in this manner from three major hospitals in Cairo. Four specific dependent variables were evaluated during the course of the study. Pain was evaluated using a digital analogue scale. Active and passive straight leg raises were measured using an inclinometer. Forward flexion was assessed using the fingertips to floor method. Initial data analysis relating to these four variables reflected greater improvement in the group given chiropractic treatment.

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