Table 7.

Comparison of hematological/serum folate values in patients with or without VB₁₂ deficiency.

	VB12 Deficiency
	Yes	No	p-Value
Characteristic	(n = 37)	(n = 138)
Hematological value (a)
Hematocrit (%)	41.5 ± 0.6	40.9 ± 0.6	0.61
Mean corpuscular volume (fL)	90.8 ± 0.9	89.3 ± 0.9	0.70
Leukocytes (×103/mm3)	6.1 ± 0.3	6.4 ± 0.1	0.32
Red blood cell count (×103/mm3)	4.6 ± 0.9	4.7 ± 0.4	0.67
Serum folate levels (ng/mL)
Mean ± SEM	11.6 ± 0.77	11.4 ± 0.43	0.70
Median (range)	10.60 (4.4–24.5)	10.50 (3.8–30.0)

(a) All hematological/folate values are from the time of the admission, with the blood MMA, tHCY, and VB₁₂ levels shown in Table 5, Table 6, Table 7 and Table 8, and were performed by the NIH Clinical Chemistry Laboratories.