PMID- 19632904
OWN - NLM
STAT- MEDLINE
DCOM- 20091216
LR  - 20220311
IS  - 1878-1632 (Electronic)
IS  - 1529-9430 (Linking)
VI  - 9
IP  - 10
DP  - 2009 Oct
TI  - Responsiveness of the Neck Disability Index in patients with mechanical neck 
      disorders.
PG  - 802-8
LID - 10.1016/j.spinee.2009.06.002 [doi]
AB  - PURPOSE: Report the test-retest reliability, construct validity, minimum 
      clinically important difference (MCID), and minimal detectable change (MDC) for 
      the Neck Disability Index (NDI). STUDY DESIGN/SETTING: Cohort study of patients 
      presenting to outpatient physical therapy clinics. PATIENT SAMPLE: Ninety-one 
      subjects with a primary complaint of neck pain, with or without concomitant upper 
      extremity (UE) symptoms, who were participants in a randomized clinical trial. 
      OUTCOME MEASURES: NDI and the 15-point Global Rating of Change (GRC) self-report 
      measures. METHODS: All subjects completed the NDI at baseline and at a 3-week 
      follow-up. Additionally, subjects completed the GRC scale, which was used to 
      dichotomize patients into improved or stable groups. Changes in the NDI were used 
      to assess test-retest reliability, construct validity, MCID, and MDC. RESULTS: 
      Test-retest reliability was moderate for the NDI (intraclass correlation 
      coefficient, 0.64; 95% confidence interval, 0.19-0.84). For the NDI, the MCID was 
      7.5 points and the MDC was 10.2 points. CONCLUSIONS: The NDI appears to 
      demonstrate adequate responsiveness based on statistical reference criteria when 
      used in a sample that approximates the high percentage of patients with neck pain 
      and concomitant UE referred symptoms. Because the MCID is within the bounds of 
      measurement error, a 10-point change (the MDC) should be used as the MCID.
FAU - Young, Brian A
AU  - Young BA
AD  - Department of Physical Therapy, Sheppard AFB, TX, USA. byoungpt@earthlink.net
FAU - Walker, Michael J
AU  - Walker MJ
FAU - Strunce, Joseph B
AU  - Strunce JB
FAU - Boyles, Robert E
AU  - Boyles RE
FAU - Whitman, Julie M
AU  - Whitman JM
FAU - Childs, John D
AU  - Childs JD
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20090725
PL  - United States
TA  - Spine J
JT  - The spine journal : official journal of the North American Spine Society
JID - 101130732
SB  - IM
CIN - Spine J. 2009 Oct;9(10):854-6. PMID: 19664967
MH  - Area Under Curve
MH  - Cohort Studies
MH  - *Disability Evaluation
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Multicenter Studies as Topic
MH  - Neck Pain/*rehabilitation
MH  - ROC Curve
MH  - Randomized Controlled Trials as Topic
MH  - Reproducibility of Results
MH  - *Severity of Illness Index
EDAT- 2009/07/28 09:00
MHDA- 2009/12/17 06:00
CRDT- 2009/07/28 09:00
PHST- 2008/02/15 00:00 [received]
PHST- 2009/05/01 00:00 [revised]
PHST- 2009/06/06 00:00 [accepted]
PHST- 2009/07/28 09:00 [entrez]
PHST- 2009/07/28 09:00 [pubmed]
PHST- 2009/12/17 06:00 [medline]
AID - S1529-9430(09)00268-X [pii]
AID - 10.1016/j.spinee.2009.06.002 [doi]
PST - ppublish
SO  - Spine J. 2009 Oct;9(10):802-8. doi: 10.1016/j.spinee.2009.06.002. Epub 2009 Jul 
      25.