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Table 5 Clinical subgroup analysis of SDC and MIC for the NDI. GPE on pain (3-5 = unchanged)

From: The influence of study population and definition of improvement on the smallest detectable change and the minimal important change of the neck disability index

 

SDC

MIC

Sensitivity

Specificity

No radiation (N = 47)

11.0

2.5

0.750

0.889

Radiation (N = 54)

11.0

2.5

0.654

0.963

Baseline < 24 (N = 49)

6.8

2.5

0.882

0.871

Baseline ≥24 (N = 52)

13.0

4.0

0.600

1.000

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Health and Quality of Life Outcomes

ISSN: 1477-7525

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