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Retrospective Cohort Study
©The Author(s) 2018.
World J Gastroenterol. Feb 21, 2018; 24(7): 844-851
Published online Feb 21, 2018. doi: 10.3748/wjg.v24.i7.844
Table 3 Association among operative difficulty, postoperative hospital stay and cost with age
Variable< 65 yr, n = 454≥ 65 yr, n = 273Total, n = 727P value
Mean operative time in min239.8247.5243.10.330
Mean intraoperative blood loss in mL461.0479.1468.00.650
Blood transfusion, n1691292980.008
Mean postoperative hospital stay in d21.122.721.90.150
Mean cost in RMB7641173610747170.790


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