The Relation of Cytotoxin-Associated Gene-A Seropositivity with Vitamin B12 Deficiency in Helicobacter pylori-Positive Patients

Table 3

CagA status and MCV, folate, and B12 levels in H. pylori (+) patients.

	CagA-negative (n = 91), mean ± SD	CagA-positive (n = 122), mean ± SD
MCV (fl)	86.4 ± 6.1	85.9 ± 7.4	^a0.631
Folate (ng/ml)	7.9 ± 2.80	8.6 ± 3.5	^a0.109
B12 (pg/ml)	318.1 ± 149.1	245.6 ± 112.5	^a0.001

^aStudent’s t-test. . SD: standard deviation; MCV: mean corpuscular volume.