Chronic functional constipation is strongly linked to vitamin D deficiency

Table 2 Probability of intestinal motility disorder occurrence at the univariate and multivariate analysis

Variable	Univariate analysis		Multivariate analysis
	OR (95%CI)	P value	OR1(95%CI)	P value
Age, yr	1.0 (0.98-1.01)	0.76	-	-
BMI, kg/m2	0.91 (0.82-1.0)	0.04	0.98 (0.86-1.11)	0.72
Vitamin D, IU/mL	0.82 (0.78-0.87)	< 0.001	0.83 (0.78-0.87)	< 0.001

¹Adjusted for all variables in the multivariate model. BMI: Body mass index. OR: Odds ratio; CI: Confidence interval.