Risk factors for anastomotic leakage after radical colorectal cancer surgery and its impact on prognosis: Clinical education research

Table 5 Comparison of short-term postoperative outcomes between anastomotic leakage and non-anastomotic leakage groups, n (%)/mean ± SD

Outcome indicator	AL group (n = 22)	Non-AL group (n = 178)	χ²/t/Z	P value
Hospital stay (days)	24.2 ± 12.4	10.8 ± 4.2	7.268	< 0.001
Postop hospital stay (days)	19.6 ± 10.8	7.8 ± 3.4	6.924	< 0.001
Time to first flatus (days)	5.4 ± 1.8	3.6 ± 1.2	4.428	< 0.001
Time to oral feeding (days)	7.6 ± 2.8	4.4 ± 1.6	5.124	< 0.001
Overall complication rate	18 (81.8)	40 (22.5)	34.284	< 0.001
Wound infection	6 (27.3)	14 (7.9)	8.214	0.004
Abdominal abscess	5 (22.7)	8 (4.5)	11.246	0.001
Intestinal obstruction	4 (18.2)	10 (5.6)	4.428	0.035
Urinary tract infection	3 (13.6)	12 (6.7)	1.286	0.257
Pulmonary complications	4 (18.2)	16 (9.0)	1.680	0.195
Reoperation rate	4 (18.2)	6 (3.4)	7.354	0.007
30-day mortality	1 (4.5)	1 (0.6)	Fisher: 0.042	0.042
Permanent stoma rate	12 (54.5)	24 (13.5)	16.948	< 0.001
Adjuvant chemo delay	10 (45.5)	20 (11.2)	14.286	< 0.001

AL: Anastomotic leakage.