J Manipulative Physiol Ther. 1983 Sep; 6(3): 117-28.

Chiropractic statistical survey of 100 consecutive low back pain patients.

Cox JM, Fromelt KA, Shreiner S.

One hundred consecutive patients with low back and/or lower extremity pain had the clinical data; including history, diagnosis, treatment and results of conservative manipulative therapy collected and tabulated on an IBM 370/138 computer at Indiana-Purdue University in Fort Wayne, Indiana utilizing the Statistical Package for the Social Sciences (SPSS) based on a standardized examination form. Various congenital, developmental and ergonomic factors in low back pain patients were collected and correlated for combinations of factors leading to back pain. Treatment methods and response to treatment as to time and patient visit numbers were determined. The frequency of congenital anomalies were found and those effecting or not effecting low back pain onset determined. Overall, 50% relief of low back and leg pain was obtained in 15.95 days and 10.8 visits average; maximum relief was found in 41.2 days, or 16.1 treatments.