survival analysis is a set of methods used for analysis of the data which exist until the occurrence of an event. this study aimed to compare the results of the use of the semi-parametric cox model with parametric models to determine the factors influencing the length of stay of patients in the inpatient units of women hospital in tehran, iran. in this historical cohort study all 3421 charts of...

background and objectives: hospital is the largest and most costly operating unit of healthcare system. provision of optimal care requires that hospital administrators identify hospital performance based on relevant indicators. this study used the pabon lasso analysis to assess the performance of hospitals and identify strategies towards an improved hospital performance.   methods: this cross-s...

conclusions this study shows that an adequate nutritional support, in patients with severe burn injury, can improve sofa score. it is also more cost-effective, resulting in a shorter los in hospital. background severe burned patients developed metabolic imbalances and systemic inflammatory response syndrome (sirs), which can lead to malnutrition, impaired immunologic response, multiple organ fa...

background: according to the high prevalence of vitamin d deficiency, a few studies have been conducted to clarify the relationship between 25?hydroxyvitamin d (25(oh)d) and clinical outcomes in critically ill patients. the objective of this study was to determine this probable association. materials and methods: serum 25(oh)d, c?reactive protein, malnutrition measurements, and intensive care u...

This study examined how motivation for learning English, the amount of contact with English, and  length  of  residence  in  the  target language area affects Korean graduate students’ English pragmatic skills. The study attempted to account for differential pragmatic development among 50  graduate-level  Korean  students  in  relation  to  individual  factors  mentioned  above.  The  data were...