Serum vitamin D level and its association with anti-seizure medications in children with seizure disorder

Table 6 Multivariable linear regression analysis of factors associated with serum vitamin D levels

Variables	β coefficient	Standardized β (β1)	95%CI	P value
Age (years)	-0.05	-0.06	-0.2 to 0.1	0.52
Male sex	0.3	0.08	-0.8 to 1.4	0.59
Malnutrition	-1.1	-0.14	-2.8 to 0.6	0.20
Developmental delay	-0.9	-0.12	-2.5 to 0.7	0.26
Low socioeconomic status	-0.7	-0.09	-2.1 to 0.7	0.32
Enzyme-inducing ASM	-0.8	-0.11	-2.0 to 0.4	0.19
Duration of ASM (months)	-0.12	-0.13	-0.3 to 0.06	0.18

β: Unstandardized regression coefficient; β1: Standardized regression coefficient; CI: Confidence interval; ASM: Antiseizure medication.