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Table 1 Demographic data and the serum levels of vitamin B12, folate, ferritin, hemoglobin of the participants

From: The profile of hematinic deficiencies in patients with oral lichen planus: a case-control study

 

OLP (n = 236)

Health controls (n = 226)

P

Age a

51.70 ± 13.99

49.46 ± 17.26

0.127

Male-to-female ratio b

41:195

52:174

0.131

vitamin B12 (ng/L) c

261.00 ± 171.75

306.50 ± 220.5

< 0.001

folate (ng/ml) c

9.38 ± 5.90

11.50 ± 30.04

< 0.001

Ferritin (ng/ml) c

 Male

126.80 ± 94.85

120.30 ± 130.38

0.629 c

 Female

54.20 ± 101.8

38.65 ± 65.62

0.458 c

Hemoglobin (g/dL) c

 Male

160.00 ± 18.50

156.00 ± 16.25

0.798 c

 Female

136.00 ± 16.00

136.00 ± 14.25

0.845 c

  1. SD Standard deviation; QR Quartile Range
  2. aIndependent-sample t test; Mean ± SD
  3. bChi-square test
  4. cWilcoxon’s rank-sum test, Median ± QR.