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Table 1 The prevalence of ID/IDA and the comparison of hemoglobin, hematocrit, iron, ferritin, MCV, and RDW levels between patient and control groups

From: Iron deficiency parameters in autism spectrum disorder: clinical correlates and associated factors

  ASD patients, N = 100
N (%)
Controls, N = 100
N (%)
RR (95% CI) p*
ID 25 (25.0) 15 (15.0) 1.66 (0.93–2.96) 0.077
IDA 13 (13.0) 6 (6.0) 2.16 (0.85–5.47) 0.091
  Mean (SD) Mean (SD) d p**
Hemoglobin 12.68 (1.19) 13.02 (1.14) 0.291 0.045
Hematocrit 36.43 (4.61) 38.74 (5.78) 0.441 0.002
Iron 56.06 (31.98) 73.97 (33.85) 0.543 0.000
Ferritin 27.83 (22.01) 26.75 (17.65) − 0.054 0.702
MCV 74.25 (8.46) 78.42 (5.41) 0.587 0.000
RDW 14.69 (5.78) 13.60 (1.09) − 0.262 0.066
  1. RR relative risk
  2. d Cohen’s d
  3. *Chi-Square test was used, **Independent-Samples t test was used