Duration of postoperative hyperlactatemia has predictive value in recurrent fistula after major definitive surgery for intestinal fistula

Table 3 Changes of lactate

	RF Group A	Non-RF Group A	p	RF Group B	Non-RF Group β	p	RF Group C	Non-RF Group C	p
Postoperative lactate, mmol/L, (median, IQR)	2.88 ± 0.48	2.60 ± 0.37	0.077	5.05 ± 0.62	4.82 ± 0.54	0.015	7.17 ± 0.47	6.45 ± 0.66	< 0.001
Postoperative lactate at 12th hour after definitive surgery, mmol/L, (median, IQR)	2.08 ± 0.28	1.98 ± 0.34	0.456	3.44 ± 0.52	3.16 ± 0.63	0.006	4.52 ± 1.14	3.76 ± 0.93	0.001
Postoperative lactate at 24th hour after definitive surgery, mmol/L, (median, IQR)	1.91 ± 0.18	1.64 ± 0.30	0.028	2.29 ± 0.54	2.08 ± 0.51	0.014	2.86 ± 0.47	2.41 ± 0.73	< 0.001
Postoperative lactate at 48th hour after definitive surgery, mmol/L, (median, IQR)	1.40 ± 0.25	1.26 ± 0.33	0.329	1.85 ± 0.34	1.72 ± 0.34	0.023	2.08 ± 0.46	1.81 ± 0.26	0.001
Postoperative lactate at 72th hour after definitive surgery, mmol/L, (median, IQR)	1.31 ± 0.43	1.20 ± 0.29	0.373	1.67 ± 0.46	1.49 ± 0.52	0.035	1.92 ± 0.46	1.66 ± 0.37	0.007
Postoperative lactate at 7th day after definitive surgery, mmol/L, (median, IQR)	1.10 ± 0.40	1.16 ± 0.41	0.716	1.23 ± 0.45	1.15 ± 0.45	0.302	1.21 ± 0.38	1.06 ± 0.39	0.088

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