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Table 2 The Crobach’s α, and ICC for the low back pain scales

From: A comparison between the low back pain scales for patients with lumbar disc herniation: validity, reliability, and responsiveness

 

Number of item

Crobach’s α

ICC

JOABPEQ

 Q1 Low back pain

4

0.494

0.751

 Q2 Lumbar function

6

0.768

0.809

 Q3 Walking ability

5

0.741

0.812

 Q4 Social life function

4

0.701

0.832

 Q5 Mental health

7

0.879

0.866

NPRS

1

/

0.991

ODI

10

0.828

0.871

RMDQ

24

0.807

0.855

SF-36 PCS

21

0.774

0.896

SF-36 MCS

14

0.802

0.843

  1. ICC intraclass correlation coefficient, JOABPEQ Japanese Orthopaedic Association Back Pain Evaluation Questionnaire, NPRS Numerical Pain Rating Scale, ODI Oswestry Disability Index, RMDQ Roland-Morris Disability Questionnaire, SF-36 Short Form Health Survey, PCS Physical Component Summary score, MCS Mental Component Summary score