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Table 3 Patients with normal EPM findings (control group) as divided by ethnicity

From: Ethnicity and gender related differences in extended intraesophageal pH monitoring parameters in infants: a retrospective study

  Caucasians African Americans p
Number of patients 101 265  
Mean age (months) ± SE 3.73 ± 0.26 3.91 ± 0.16 0.56
Mean reflux index % ± SE 2.38 ± 0.50 2.12 ± 0.31 0.65
Mean number of reflux episodes ± SE 54.39 ± 5.30 44.6 ± 3.27 0.12
Mean number of reflux episodes >5 minutes ± SE 0.78 ± 0.22 0.61 ± 0.14 0.52
  1. SE: standard error