Case Control Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. May 14, 2015; 21(18): 5488-5495
Published online May 14, 2015. doi: 10.3748/wjg.v21.i18.5488
Table 2 Intra-operative characteristics between study groups
CharacteristicPD groupPSD groupP value
(n = 69)(n = 69)
Op. time (min)481 (312-798)435 (301-552)0.048
Blood loss (mL)802 (240-1900)351 (150-1000)0.031
Patients needing intraoperative blood transfusion, n (%)23 (33.3)7 (10.1)0.027