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Table 2 Modified Waldrop items: concordance findings for affected and non-affected sib pairs

From: Morphological features in a Xhosa schizophrenia population

         STATISTICS
ITEM GROUP CONCORDANT FOR ABSENCE OF DYSMORPHOLOGY DISCONCORDANT CONCORDANT FOR PRESENCE OF DYSMORPHOLOGY CHI SQUARE p
Low set ears sSibs 11 50.0 7 31.8 4 18.2 2.09 0.35
  unafSibs 13 72.2 3 16.7 2 11.1   
Epicanthus sSibs 19 82.6 3 13.0 1 4.4 3.94 0.14
  unafSibs 11 55.0 7 35.0 2 4.7   
5 th finger sSibs 17 77.3 2 9.1 3 13.6 7.37 0.025
  unafSibs 14 66.7 7 33.3 0 0.0   
Adherent ear lobe sSibs 11 57.9 5 26.3 3 15.8 11.42 0.003
  unafSibs 2 9.5 11 52.4 8 38.1   
Malformed ears sSibs 17 80.9 4 19.1 0 0.0 2.17 0.14
  unafSibs 20 95.2 1 4.8 0 0.0   
Asymmetrical ears sSibs 17 80.9 4 19.1 0 0.0 2.17 0.14
  unafSibs 20 95.2 1 4.8 0 0.0   
abnormalities sSibs 6 85.7 1 14.3 0 0.0 1.45 0.25
  unafSibs 12 63.2 7 36.8 0 0.0   
Gap between 1 st and 2 nd toe sSibs 12 54.6 6 27.3 4 18.2 7.75 0.021
  unafSibs 18 85.7 3 14.3 0 0.0   
Palatal abnormalities sSibs 4 25.0 8 50.0 4 25.0 16.62 0.0002
  unafSibs 0 0.0 0 0.0 9 100   
Syndactalia sSibs 15 65.2 7 30.4 1 4.4 0.021 0.99
  unafSibs 14 66.7 6 28.6 1 4.8   
Transverse palmar crease sSibs 19 95.0 1 5.0 0 0.0 2.17 0.14
  unafSibs 20 91.4 2 9.6 0 0.0   
  1. sSibs = group 1 = sib pairs with schizophrenia
  2. unafSibs = group 4 = sib pairs, unaffected