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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.