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Table 1 Frequency of the Val66Met (G196A) genotypes according to the risk of ED in preadolescence

From: BDNF Val66Met polymorphism, energy intake and BMI: a follow-up study in schoolchildren at risk of eating disorders

ED severity Val/Vala Val/Metb Met/Metc p-value p-value a vs b+c
   n % (95% CI) n % (95% CI) n % (95% CI)   
  Risk 32 76.2 (60.6-87.9) 9 21.4 (10.3-36.8) 1 2.4 (0.0-12.6)   
Male Diagnosis 7 43.8 (19.8-70.1) 7 43.8 (19.8-70.1) 2 12.5 (1.6-38.3) 0.181 0.099
  Control 22 64.7 (46.5-80.3) 9 2 6.5 (12.9-44.4) 3 8.8 (1.9-23.7)   
  Risk 28 68.3 (51.9-81.9) 12 29.3 (16.1-45.5) 1 2.4 (0.1-12.9)   
Female Diagnosis 17 73.9 (51.6-89.8) 6 26.1 (10.2-48.4) 0 - 0.562 0.527
  Control 25 61.0 (44.5-75.8) 13 31.7 (18.1-48.1) 3 7.3 (1.5-19.9)   
  Risk 60 72.3 (61.4-81.5) 21 25.3 (16.4-36.0) 2 2.4 (0.3-8.4)   
All Diagnosis 24 61.5 (44.6-76.6) 13 33.3 (19.1-50.2) 2 5.1 (0.6-17.3) 0.433 0.199
  Control 47 62.7 (50.7-73.6) 22 29.3 (19.4-41.0) 6 8.0 (3.0-16.6)   
  1. CI: Confidence interval, Diagnosis: any diagnosis