Background and Aim. Psoas muscle area (PMA) can reflect the status of skeletalmuscle in the whole body. It has been also reported\nthat decreased PMA was associated with postoperative mortality or morbidity after several surgical procedures. In this study, we\naimed to investigate the relation between PMA andmortality in all age groups in intensive care unit (UNIT). Materials and Method.\nThe study consists of 362 consecutive patients. The demographic characteristics of patients, indications for ICU hospitalization,\nlaboratory parameters, and clinical parameters consist of mortality and length of stay, and surgery history was obtained from\nintensive care archive records. Results. The mean age was 61.2 �± 18.2 years, and the percentage of female was 33.3%. The mean\nduration of stay was 10.3 �± 24.4 days. Exitus ratio, partial healing, and healing were 25%, 70%, and 5%, respectively. The mean\nright, left, and total PMA were 8.7 �± 3.6, 8.9 �± 3.4, and 17.6 �± 6.9, respectively.The left and total PMA averages of the nonoperation\npatients were statistically significantly lower (
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