Presurgical time and associated factors as predictors of acute perforated appendicitis: a prospective cohort study in a teaching pediatric hospital in Colombia

Table 3 Association between presurgical timing and rate of perforation

	Model 1				Model 2				Model 3
	OR	p-value	[95% Conf.	Interval]	OR	p-value	[95% Conf.	Interval]	OR	p-value	[95% Conf.	Interval]
Total presurgical timing
Continuous variable	1.34	0.00	[1.18	1.53]
Categories
0–1 day					1.00	NA
2 days					2.14	0.00	[1.43	3.20]
3 days					3.16	0.00	[1.78	5.63]
4 days					2.61	0.02	[1.18	5.81]
5 or more days					3.61	0.00	[1.59	8.21]
Out-of-hospital presurgical timing									1.39	0.00	[1.21	1.61]
In-hospital presurgical timing									0.98	0.91	[0.67	1.44]

Model 1. Exposure variable: total pre-surgical symptomatic time (days)
Model 2. Exposure variable: total pre-surgical symptomatic time (5 categories)
Model 3. Exposure variable: Out-of-hospital and in-hospital presurgical time

ISSN: 1471-2431