Dynamic ultrasound monitoring of intraperitoneal effusion for predicting complications after laparoscopic gastrectomy

Table 6 Postoperative inflammation indicators, mean ± SD

Time point/effusion nature	Body temperature (°C)	WBC (× 109/L)	CRP (mg/L)	PCT (ng/mL)	Statistical values	P value
POD1	37.56 ± 0.39	9.28 ± 2.21	34.75 ± 10.16	0.18 ± 0.06
POD3	38.12 ± 0.65	12.36 ± 3.45	58.32 ± 14.28	0.52 ± 0.15	Body temperature F = 29.763	< 0.001
					WBC F = 41.289	< 0.001
					CRP F = 53.471	< 0.001
					PCT F =38.954	< 0.001
POD7	37.45 ± 0.32	8.54 ± 1.78	26.94 ± 8.73	0.22 ± 0.08
Simple effusion group	37.89 ± 0.44	10.75 ± 2.21	43.84 ± 10.62	0.39 ± 0.11
Mixed effusion group	38.56 ± 0.58	14.02 ± 3.12	72.15 ± 12.34	0.67 ± 0.14	Body temperature t = 5.812	< 0.001
					WBC t = 6.524	< 0.001
					CRP t = 7.385	< 0.001
					PCT t = 6.987	< 0.001

P < 0.05 indicated significant difference. Body temperature was the maximum daily value. Comparisons across time points used repeated-measures analysis of variance; between-group comparisons used independent t-tests. WBC: White blood cell count; CRP: C-reactive protein; PCT: Procalcitonin; POD: Postoperative day.