. Author manuscript; available in PMC: 2022 Sep 1.

Published in final edited form as: Clin Gastroenterol Hepatol. 2020 Jul 23;19(9):1855–1863.e1. doi: 10.1016/j.cgh.2020.07.033

Table 2.

Multiple Logistic Regression Analysis of Demographic and Clinical Characteristics Related to the Development of Postinfection Irritable Bowel Syndrome

	Estimate	Odds ratio with 95% CI	P value

Male sex	−0.752	0.47 (0.36–0.62)	<.001
Age^a			.043
Diarrhea duration^b	−0.035	0.97 (0.81–1.14)	.68
Bloody stools	0.345	1.41 (1.06–1.89)	.020
Abdominal cramps	0.716	2.05 (1.26–3.33)	.004
Vomiting	0.220	1.25 (0.92–1.69)	.15
Fever	−0.485	0.62 (0.45–0.83)	.002
Hospitalization	0.712	2.04 (1.38–3.02)	<.001

NOTE. Boldface indicates P < .05.

CI, confidence interval.

Age was modeled as a 3 df natural spline, older age was associated with less likelihood of developing irritable bowel syndrome.

Diarrhea duration was categorized into 4 groups of increasing severity and was modeled linearly.