This study was conducted to clarify the features of complications attending spinal cord injury (SCI).

A comparison was made of the prevalence of disease among patients with SCI (SCIP) with that in the general population in Japan (National Livelihood Basic Survey).

For this purpose, a survey was conducted on 244 males at 8 Rosai Rehabilitation Centers (Workman's Accident Compensation Rehabilitation Work-shops).

The average age was 49.6 years.

To eliminate age effects on this parameter, the prevalence rates were expressed as standardized outpatient morbidity ratios (SOMRs), with the value for the general population set at 100.

The SOMR data for cystitis were particularly high (16,278, p<0.01).

The SOMRs for other diseases were also high :

• renal diseases, 2,642 ;

• disorders of the skin, 361 ;

• gastritis, 339 ;

• and hepatic disorders, 381 (p<0.01).

These disorders may be regarded as primary or secondary lesions associated with SCI.

SCIP with diseases associated with aging, such as hypertension and diabetes mellitus, are on the increase in Japan.

The SOMR for hyptertension was 250 (p<0.01), and for diabetes mellitus it was 323 (p<0.01).