Table 4.

Comparison of patients with and without conversion to laparotomy

	Without conversion (n = 88)	With conversion (n = 12)	P value
Mean age (yr ± SD)	66.1 ± 14.5	71.6 ± 13.3	NS
Sex
Male	44	7	NS
Female	44	5
Mean BMI (kg/m2 ± SD)	23.9 ± 3.1	24.1 ± 4.7	NS
History of abdominal surgery	22 (25%)	4 (33.3%)	NS
TG13 severity grading
Grade I (mild)	82 (93.2%)	4 (33.3%)	P < 0.001
Grade II (moderate)	6 (6.8%)	8 (66.7%)
Mean time from onset (d ± SD)	7.5 ± 4.0	9.1 ± 4.4	NS

SD: Standard deviation; NS: Not significant; BMI: Body mass index; TG13: Updated Tokyo Guidelines.