Postoperative depression and anxiety in patients undergoing intestinal tumor surgery: Incidence, predictors, and impact on quality of life

Table 3 Levels of inflammatory factors

Time point	NLR	χ2/t	P value	AFR	χ2/t	P value	PNR	χ2/t	P value
24 hours before surgery	4.21 ± 1.35	-	-	15.20 ± 3.8	-	-	28.5 ± 6.2	-	-
24 hours after surgery	8.52 ± 3.21	15.372	< 0.001	10.35 ± 2.7	12.846	< 0.001	18.3 ± 5.1	16.241	< 0.001
72 hours after surgery	6.83 ± 2.64	5.628	0.003	12.80 ± 3.2	6.213	0.001	22.7 ± 4.9	7.315	0.002

P < 0.05 indicated significant difference. NLR: Neutrophil-to-lymphocyte ratio; AFR: Albumin-to-fibrinogen ratio; PNR: Platelet-to-neutrophil ratio.