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Table 3 Comparison of surgery-related parameters after matching

From: Impact of body mass index on surgical outcomes of gastric cancer

Characteristics Low BMI Normal BMI High BMI P value
Blood loss (ml) 150 (100, 200) 150 (100, 200) 200 (150, 350) < 0.001
Operation time (min) 170 (140, 220) 185 (150, 230) 217.5 (175, 263.75) < 0.001
Number of retrieved lymph nodes 26 (22, 33) 26 (21, 32) 23 (19, 27) < 0.001
Length of postoperative stay 7 (6, 9) 7 (6, 9) 8 (6, 9) 0.179