BACKGROUND: The clinical significance of body mass index (BMI) on the surgical outcomes in @entity356 @entity1 still remains controversial. METHODS: The subjects included 427 @entity1 who underwent gastrectomy between January 2001 and December 2005. The @entity1 were principally divided into 3 groups on the basis of BMI: low (<18.5 kg/m2), normal (>= 18.5-<25.0 kg/m2) and high (>= 25.0 kg/m2). RESULTS: The low-BMI @entity1 had more advanced disease than the other @entity1 . There were no statistically significant differences in the characteristics of the normal- and high-BMI @entity1 . The operation time was longer in the high-BMI group, but there were no differences in terms of lymph node dissection and postoperative complications among these 3 groups. The overall survival and disease-specific survival of the low-BMI group were worse than the other 2 groups. These survival rates of high-BMI group tended to be better than those of the normal BMI group; however, it was not statistically different. A multivariate analysis of these survival rate showed that a low BMI was an independent predictor of a poor prognosis. CONCLUSIONS: A low-BMI was an independent factor of poor prognosis for overall and disease-specific survivals after surgery in Japanese @entity1 with @entity356 . A high-BMI was not a risk factor.

Implications of BMI for the Prognosis of XXXX among the Japanese Population.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity356 :: ('MESH:D013274', 'Disease') :: ['gastric cancer']
@entity356 :: (MESH:D013274,Disease) :: ['Gastric Cancer']
