Circulating Unmetabolized Folic Acid: Relationship to Folate Status and Effect of Supplementation

Table 2

Patient characteristics.

	PregVit (1.1 mg folic acid) (𝑛=19)	PregVit-Folic5 (5 mg folic acid) (𝑛=19)	𝑃^a
Age (years)	33.4±5.5	35.1±7.0	0.40
Weight (kg)	54.5 (45.5–90.9)	61.8 (50.08–6.36)^b	0.98
Gravidity^c	0 (0–4)	1 (0–6)	0.86
Ethnicity			0.29
Caucasian	14	14
Hispanic	1	0
South Asian	3	1
Oriental Asian	1	4
Education			0.78
High school	0	1
College	6	4
University	12	12
Postgraduate	1	2
Employment			0.73
Student	2	4
Part time	2	1
Full time	14	14
Homemaker	1	0
Substance use
Alcohol	11	15	0.29
Cigarettes	0	1	>0.99

^a𝑃 value, as determined by Student’s 𝑡-test, Wilcoxon-Mann-Whitney test, or Fisher’s exact test.
^bData was missing for one patient (i.e., 𝑛=18).
^cThe proportion of women who had been pregnant before was not significantly different between the two groups (9/19 versus 10/19; Fisher’s exact test, 𝑃>0.99).