In a coal mine, about 50% of pelvic fractures are caused by a mine car. During the years of 1987～1991, our hospital treated 162 cases of pelvic fractures. In order to study the characteristics of tub (mine car) pelvic fractures, we divided these victims into four groups according to the cause of trauma, (1) stricken and pressed by tub, (2) bumped by heavy objects, (3) MVA and (4)falling from height. With respect to the anatomic classification, mechanism classification, injury severity and associated trauma of the 4 groups, more simple pelvic fracture in tub pelvic fractures, less associated trauma (P

OBJECTIVE: To investigate the relationship between Injury Severity Score (ISS) and Acute Physiology and Chronic Health Evaluation (APACHE II) scores and mortality rate, and to evaluate the practical significance of APACHE II in ICU trauma patients. METHODS: ISS and APACHE II scores and mortality rate of 50 ICU trauma patients were calculated by AIS-1985 revision and Knaus method, then, compared and analyzed. RESULTS: The mortality rate was directly proportional to ISS and APACHE II scores in ICU trauma patients. APACHE II was more accurate and sensitive compared to ISS. CONCLUSIONS: APACHE II is a better predictor for ICU trauma patients. ISS>=25 or APACHE II>=20 may be used as the admitting criteria for ICU trauma patients.