Impact of perioperative temperature management nursing quality on postoperative infectious complications in patients undergoing gastrointestinal surgery

Table 5 Comparison of mechanistic indicators of temperature management during the perioperative period and postoperative infection correlation, mean ± SD

Indicator	Case group (n = 9)	Control group (n = 36)	t value	P value
Intraoperative core temperature variability (°C)	0.48 ± 0.12	0.21 ± 0.07	8.873	< 0.001
Intraoperative core-to-skin temperature gradient (°C)	4.35 ± 1.02	2.67 ± 0.84	5.144	< 0.001
Intraoperative lactate clearance rate (%/hour)	18.32 ± 3.51	32.73 ± 4.11	9.654	< 0.001
Serum PCT (ng/mL) 2 hours postoperative	2.65 ± 0.76	0.82 ± 0.21	12.969	< 0.001
Immediate postoperative peripheral perfusion index	0.82 ± 0.31	1.45 ± 0.47	3.802	< 0.001
Temperature management response delay time (minutes)	24.65 ± 3.81	17.33 ± 2.24	7.541	< 0.001
Intraoperative FiO2 exposure index (%·minutes)	4820.20 ± 1050.13	4100.04 ± 890.23	2.096	0.042

PCT: Procalcitonin; FiO₂: Fraction of inspired oxygen.