A randomized cross over trial of tolerability and compliance of a micronutrient supplement with low iron separated from calcium vs high iron combined with calcium in pregnant women [ISRCTN56071145]

Table 5 Multiple linear regression of compliance in patients while taking Materna^®

Independent Variable	Coefficient	Standard Error	p value
Age	0.00	0.002	0.73
Education	-0.02	0.014	0.09
Province	0.03	0.031	0.37
Race	0.02	0.010	0.11
Marital Status	-0.08	0.034	0.02
Weight	0.00	0.000	0.14
NVP Severity*	-0.05	0.014	0.002
Substance**	-0.06	0.044	0.20

* More severe NVP was associated with significantly lower compliance. No such effect was found with Pregvit^®, which is a substantially smaller tablet, containing much lower iron content.
** alcohol, tobacco or illicit drugs