PMID- 26046666 OWN - NLM STAT- MEDLINE DCOM- 20151005 LR - 20151119 IS - 1532-5415 (Electronic) IS - 0002-8614 (Linking) VI - 63 IP - 7 DP - 2015 Jul TI - Values of the Minimal Clinically Important Difference for the Neuropsychiatric Inventory Questionnaire in Individuals with Dementia. PG - 1448-52 LID - 10.1111/jgs.13473 [doi] AB - OBJECTIVES: To estimate the minimal clinically important difference (MCID) for the Neuropsychiatric Inventory Questionnaire (NPI-Q), a widely used measure of behavioral and psychological symptoms of dementia (BPSDs) and associated caregiver stress. DESIGN: Ten registered nurses rated the severity of BPSDs and caregiver distress using the NPI-Q during six monthly assessments and an external reference, a 7-point Likert-type global rating of BPSDs change during five monthly assessments from the second to the sixth month. An anchor-based (global ratings of change) approach and a distribution-based (standard error of measurement) approach were used to determine the MCID for the NPI-Q severity and distress subscales. SETTING: Long-term care facility. PARTICIPANTS: Nonbedridden residents with dementia (n = 45) and registered nurses (n = 10). MEASUREMENTS: NPI-Q (severity and caregiver distress subscales) and global ratings of changes in BPSDs on a 7-point Likert-type scale. RESULTS: The NPI-Q MCID ranges were 2.77 to 3.18 for severity and 3.10 to 3.95 for distress. Residents in the highest NPI-Q tertile at baseline had higher MCID severity (3.62) and distress (5.08) scores than those in the lowest tertile (severity (2.40), distress (3.10)). CONCLUSION: This study provides an estimate of the MCID for severity and distress subscales of the NPI-Q, which can help clinicians and researchers determine whether NPI-Q change scores within a group of individuals with dementia are beyond measurement error and are clinically important. CI - (c) 2015, Copyright the Authors Journal compilation (c) 2015, The American Geriatrics Society. FAU - Mao, Hui-Fen AU - Mao HF AD - School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan. FAU - Kuo, Chun-An AU - Kuo CA AD - School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan. FAU - Huang, Wen-Ni AU - Huang WN AD - Department of Physical Therapy, I-Shou University, Kaohsiung City, Taiwan. FAU - Cummings, Jeffrey L AU - Cummings JL AD - Cleveland Clinic, Las Vegas, Nevada. FAU - Hwang, Tzung-Jeng AU - Hwang TJ AUID- ORCID: 0000-0001-7894-9484 AD - Department of Psychiatry, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan. LA - eng PT - Journal Article PT - Observational Study PT - Research Support, Non-U.S. Gov't DEP - 20150605 PL - United States TA - J Am Geriatr Soc JT - Journal of the American Geriatrics Society JID - 7503062 SB - IM MH - Aged MH - Aged, 80 and over MH - Caregivers/*psychology MH - Dementia/*psychology MH - Female MH - Humans MH - Long-Term Care MH - Male MH - *Neuropsychological Tests MH - Psychometrics MH - Reproducibility of Results MH - Severity of Illness Index MH - Surveys and Questionnaires MH - Taiwan OTO - NOTNLM OT - Neuropsychiatric Inventory Questionnaire (NPI-Q) OT - behavioral and psychological symptoms of dementia (BPSDs) OT - dementia OT - minimal clinically important difference EDAT- 2015/06/06 06:00 MHDA- 2015/10/06 06:00 CRDT- 2015/06/06 06:00 PHST- 2015/06/06 06:00 [entrez] PHST- 2015/06/06 06:00 [pubmed] PHST- 2015/10/06 06:00 [medline] AID - 10.1111/jgs.13473 [doi] PST - ppublish SO - J Am Geriatr Soc. 2015 Jul;63(7):1448-52. doi: 10.1111/jgs.13473. Epub 2015 Jun 5.