Table 4.

The extent of CPSP and its impact on life of patients with changed ratio of NLR ≥5 or <5 in the perioperative period.

Characteristics	changed ratio of NLR ≥ 5 (n=196)	changed ratio of NLR < 5 (n=772)	P value
CPSP (with/without)	43/153 (21.9/78.1%)	88/684 (11.4/88.6%)	< 0.001
Overall impact (yes/no)	18/178 (9.2/90.8%)	40/732 (5.2/94.8%)	0.030
Maximum NRS score after hospital discharge	1 [0, 3]	0 [0, 2]	< 0.001
Moderate to severe pain (with/without)	25/171 (12.8/87.2%)	54/718 (7.0/93.0%)	0.009

CPSP indicates chronic postsurgical pain; NRS indicates numeric rating scale; Overall impact indicates interferes with any one of the three: sleep, life, and work; NLR indicates neutrophil-lymphocyte ratio.

Continuous data were summarized as the mean ± SD or median (25th–75th percentile), qualitative data were summarized as the number of subjects and percentage. All percentages in parentheses refer to column group.

Bold values are statistically significant (P < 0.05).