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Table 4 Relationships between B 12 , folate and homocysteine levels with H. pylori status in functional dyspepsia patients

From: Relationship between vitamin B12, folate and homocysteine levels and H. Pylori infection in patients with functional dyspepsia: A cross-section study

Vitamin status H. pylori positive (n = 80) H. pylori negative (n = 50) P value*
  n Homocysteine (μmol/L) P value* n Homocysteine (μmol/L)  
   Mean ± SD/median (IQR)    Mean ± SD/median (IQR)  
Vit B12 deficient (≤200 pg/mL) 19 15.8 ± 7.3/15.5 (9.2) 0.68 11 18.1 ± 7.9/16.2 (7.0) 0.33
Vit B12 normal (>200 pg/mL) 61 15.9 ± 9.5/13.8 (8.2)   39 16.2 ± 7.9/14.2 (9.1)  
Folate deficient (≤3.5 ng/mL) 27 17.4 ± 7.7/15.3 (11.9) 0.07 18 19.6 ± 10.5/17.2 (8.9) 0.16
Folate normal (>3.5 ng/mL) 53 15.1 ± 9.5/13.1 (7.6)   32 14.9 ± 5.3/13.9 (5.8)  
  1. *The Mann–Whitney test was used to compare mean homocysteine levels in vitamin deficient vs. vitamin normal groups.