Effect of perioperative disinfection and isolation measures in infection control after gastrointestinal surgery: A retrospective analysis

Table 1 Clinical observation and test results

Time period	Group	Body temperature, °C	Pulse, beats/minutes	Respiratory rate, breaths/minutes	Incision infection, %	P value
Postoperative day 1	Observation group	37.52 ± 0.43	85.11 ± 10.23	18.32 ± 3.17	10.42	< 0.05
	Control group	37.83 ± 0.51	90.23 ± 12.11	20.11 ± 4.24	25.13	< 0.05
Postoperative day 3	Observation group	37.22 ± 0.30	80.15 ± 9.17	17.01 ± 2.31	4.17	< 0.05
	Control group	37.41 ± 0.42	85.32 ± 11.01	19.20 ± 3.15	16.67	< 0.05
Postoperative day 7	Observation group	36.82 ± 0.21	78.23 ± 8.10	16.09 ± 2.17	4.17	< 0.05
	Control group	37.13 ± 0.36	82.02 ± 9.03	18.33 ± 3.24	10.42	< 0.05

P < 0.05 indicates a statistically significant difference.

Table 2 Laboratory test results

Indicators	Observation group (n = 48)	Control group (n = 48)	P value	t
WBC on postoperative day 1, × 109/L	9.25 ± 1.14	12.04 ± 1.55	< 0.001	10.046
WBC on postoperative day 3, × 109/L	7.82 ± 1.03	11.02 ± 1.47	< 0.001	12.352
WBC on postoperative day 7, × 109/L	6.41 ± 0.85	9.67 ± 1.13	< 0.001	15.973
CRP on postoperative day 1, mg/L	4.83 ± 1.52	11.03 ± 2.06	< 0.001	16.779
CRP on postoperative day 3, mg/L	3.52 ± 1.06	9.52 ± 2.51	< 0.001	15.257
CRP on postoperative day 7, mg/L	2.50 ± 0.73	6.19 ± 1.55	< 0.001	14.922

P < 0.05 indicates a statistically significant difference. WBC: White blood cell; CRP: C-reactive protein.

Table 3 Imaging examination results, %

Indicators	Observation group (n = 48)	Control group (n = 48)	P value	χ2
Incidence of complications in the first postoperative week	6.25 (3/48)	14.58 (7/48)	0.181
Incidence of complications in the second postoperative week	4.17 (2/48)	10.42 (5/48)	0.432
Incidence of complications in the fourth postoperative week	2.08 (1/48)	6.25 (3/48)	0.610
			0.037	4.350
Incidence of intraperitoneal effusion in the first week after surgery	2.08 (1/48)	12.5 (6/48)	0.049
Incidence of intraperitoneal effusion in the second week after surgery	0.0 (0/48)	6.25 (3/48)	0.083
Incidence of intraperitoneal effusion in the fourth week after surgery	0.0 (0/48)	4.17 (2/48)	0.153
			0.007	7.265
Abscess formation rate in the first postoperative week	0.0 (0/48)	8.33 (4/48)	0.041
Abscess formation rate in the second postoperative week	0.0 (0/48)	4.17 (2/48)	0.153
Abscess formation rate in the 4th postoperative week	0.0 (0/48)	2.08 (1/48)	0.312
			0.008	7.137

P < 0.05 indicates a statistically significant difference.

Table 4 Test results of other biochemical indicators

Indicators	Observation group, n = 48, the first day after surgery	Control group, n = 48, the first day after surgery	P value	t	Observation group, n = 48, the third day after surgery	Control group, n = 48, the third day after surgery	P value	t
ALT (U/L)	22.03 ± 3.02	28.05 ± 4.09	< 0.001	-8.204	19.05 ± 2.53	25.03 ± 5.03	< 0.001	-7.358
AST (U/L)	30.03 ± 4.05	40.04 ± 5.02	< 0.001	-10.752	27.08 ± 3.53	35.00 ± 6.04	< 0.001	-7.843
TP (g/L)	70.12 ± 6.34	65.34 ± 7.12	0.001	3.474	68.45 ± 5.89	63.20 ± 8.00	< 0.001	3.661
ALB (g/L)	40.25 ± 4.12	35.75 ± 5.67	< 0.001	4.448	39.00 ± 3.85	34.50 ± 6.00	< 0.001	4.373
Cr (μmol/L)	68.07 ± 9.08	82.02 ± 10.07	< 0.001	-7.128	62.03 ± 7.02	75.02 ± 9.03	< 0.001	-7.868
BUN (mmol/L)	4.54 ± 0.65	5.81 ± 0.84	< 0.001	-8.284	4.06 ± 0.53	5.54 ± 0.77	< 0.001	-10.969

P < 0.05 indicates a statistically significant difference. ALT: Alanine aminotransferase; AST: Aspartate aminotransferase; TP: Total protein; ALB: Albumin; Cr: Creatinine; BUN: Blood urea nitrogen.