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Table 6 Inter-rater agreement of the prone hip extension (PHE) test and active straight leg raise (ASLR) test for the low back pain (LBP) group

From: Inter-rater agreement, sensitivity, and specificity of the prone hip extension test and active straight leg raise test

  PHE test ASLR test
Overall agreement (%) 91.7% 91.7%
Kappa statistic 0.76 0.76
95% CI 0.57-0.95 0.57-0.96
p value p < 0.001 p < 0.001
PABAK statistic 0.83 0.83
Prevalence index 0.55 0.55
Bias index 0.08 0.05
  1. Abbreviation: PABAK Prevalence-Adjusted Bias-Adjusted Kappa.