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Table 2 Reliability intra and inter-observer for the electroacoustic probe, Celaya, 2014 (n = 200)

From: Validity and reliability of electroacoustic probe for diagnosis of developmental dysplasia of the hip

  Second measure Third measure
+ - + -
Comparative test sound transmission
 First measure
  + 12 4 13 4
  - 1 183 1 182
Kappa (95%CI) 0.80 (0.63–0.97) 0.81 (0.65–0.97)
Sound transmission with extension/flexion
 First measure
  + 24 1 24 1
  - 0 175 1 174
Kappa (95%CI) 0.98 (0.93–1.0) 0.95 (0.89–1.0)
  1. Source: Measures of the study with electroacoustic probe