This study was also quantitative, with MRSA screening as the independent variable. Similar methods to the previous study were used in this research, including monitoring post-operative intensive care patients who received a nasal swab before the procedure. The population in this study included patients treated postoperatively in the intensive care unit. Exclusion criteria were not indicated. The study analyzed data collected from the observation of 614 patients treated in intensive care between April 2006 and March 2011. The patient population was divided into two groups: MRSA positive (31 patients with an average age of 73.5 +/- 1.9 years) and MRSA negative. (583 patients with a mean age of 68.3 +/- 0.5 years). The MRSA-positive group included 23 male and 8 female patients, while in the MRSA-negative group there were 390 male and 193 female patients. The researchers then compared the incidence of postoperative MRSA infection in both groups. All postoperative study subjects received a consecutively processed nasal swab using dual nutrient agar with chemical sensitivity to identify MRSA. Patients identified as positive for MRSA were treated with appropriate antibiotics. Empiric antibiotic treatment was used in cases where MRSA was strongly suspected but culture results had not yet proven positive. Other than instruments such as nasal swabs, agar