PURPOSE
This study was conducted to test criterion-related validity of the Critical Patients' Severity Classification System (CPSCS) developed by the Hospital Nurses' Association by examining relationships with brain injury severity measured by Glasgow Coma Scale (GCS), recovery state measured by Glasgow Outcome Scale (GOS), and days of stay in ICU of brain injury patients.
METHODS
Prospective correlational research design was adopted by including 194 brain injury patients admitted to ICU of one university hospital.
RESULTS
The score of CPSCS appeared to significantly discriminate the severity of brain injury. Among nursing activities in CPSCS, Respiratory therapy, IV Infusion and Medication, Monitoring, Activities of Daily Living (ADL), Treatment and Procedure were significant to discriminate the severity of brain injury. Respiratory therapy, Vital Signs, and Monitoring appeared to significantly discriminate the recovery states of 1- and 3-months. Nursing activities significantly contributed to predict the days of ICU stay were Respiratory therapy, ADL, and Teaching and Emotional Support.
CONCLUSION
CPSCS developed by the Hospital Nurses Association appeared to be valid to discriminate or predict brain injury severity, recovery states, and days of stay in ICU for brain injury patients.

PURPOSE
The purpose of the study were to examine the nutritional status of severe brain injury adult patients in critical period, and to compare the nutritional states before and after tube feeding.
METHODS
Data from 19 patients admitted to the SICU in a university hospital due to severe brain injury were analyzed. Nutritional states were measured by anthropometric and blood biochemical indicators.
RESULTS
MAC and MAMC were significantly decreased only at 7 days after admission compared with those on the day of admission. TSF was significantly decreased from 7 days to 14 days after admission. Fat rate was significantly decreased from 3 days to 14 days after admission. Hb was significantly decreased only at 3 days after admission. Albumin was significantly decreased from 3 days to 14 days after admission. However, lymphocyte was significantly increased at 14 days after admission. TSF and Albumin became significantly worse even after initiating tube feeding.
CONCLUSIONS
Nutritional status of severe brain injury patients in SICU became worse after admission whichever indicators were adopted to evaluate nutritional status, anthropometric or blood biochemical indicators, and became worse even after initiating tube feeding.