Table 3.

Intra- and between-groups comparison of the follow-up folate levels of the groups given folic acid

	Group 1 (25 μg/g) (n=46)	Group 2 (50 μg/g) (n=39)	Group 3 (75 μg/g) (n=44)
	(mean±SD)	(mean±SD)	(mean±SD)
	Min–max,	Min–max,	Min–max,
	(median)	(median)	(median)
Neonatal basal RBCFL level (ng/mL)	916.5±3927	956.9±582.5	922.7±470.3
	(285.5–2058.5)	(398.1–3864.3)	(419.6–2994.6)
	(839.2)	(825.9)	(850.2)
Neonatal follow-up RBCFL level (ng/mL)	1152.3±426.7	1176.7±350.3	1187.5±744.9
	(567–3145)	(337.1–2076)	(534.4–5483.8)
	(1109.2)	(1132.5)	(1054.5)
P (p values belonging to the differences)	0.003	0.002	<0.001
p (p values for comparison of the differences by groups)		0.599
Neonatal basal serum folate level (ng/mL)	21.5±15.7	21.6±10.5	20.7±10.1
	(4.1–90)	(6.7–53.9)	(4.9–48.1)
	(17.3)	(18.8)	(19.1)
Neonatal follow-up serum folate level (ng/mL)	35.3±18.6	35.1±16.8	35.4±16.1
	(6.8–78.2)	(8.4–75.6)	(6.2–82.6)
p (p values of the differences)	<0.001	<0.001	<0.001
p (p values for comparison of the differences by groups)		0.354

Mean ±SD: mean±standard deviation; RBCFL: red blood cell folate level