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Printed on 7/20/2026
For informational purposes only. This is not medical advice.
The NPI-Q is a short-form informant-based instrument derived from the Neuropsychiatric Inventory to screen common behavioral and psychological symptoms of dementia. It quantifies both symptom severity and associated caregiver distress to support treatment planning and follow-up.
Formula: NPI-Q provides separate totals for symptom severity (0-36) and caregiver distress (0-60); higher totals indicate greater burden.
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The caregiver/informant is asked whether each of 12 neuropsychiatric symptoms has been present in the past month: delusions, hallucinations, agitation/aggression, depression/dysphoria, anxiety, elation/euphoria, apathy/indifference, disinhibition, irritability/lability, motor disturbances, nighttime behaviours, and appetite/eating changes. Only present symptoms are rated further.
For each symptom confirmed as present, the caregiver rates symptom severity (1 = mild, 2 = moderate, 3 = severe) and their own caregiver distress (0 = not distressing at all to 5 = extremely distressing). This dual rating captures both the clinical symptom burden and the human cost of caregiving.
Sum the severity scores for all present symptoms to obtain the NPI-Q symptom severity total (0–36). Sum the distress scores for all present symptoms to obtain the caregiver distress total (0–60). These are reported and interpreted separately as they capture distinct clinical constructs.
Geriatricians, neurologists, and dementia nurses
Serial NPI-Q administration tracks the evolution of behavioural and psychological symptoms of dementia (BPSD) over time, informing medication adjustments and non-pharmacological intervention planning.
Social workers and dementia care coordinators
The separate caregiver distress score identifies carers at risk of burnout. High distress scores trigger targeted support referrals (respite, psychoeducation, counselling) independent of the patient's symptom severity.
Psychiatrists and geriatricians
NPI-Q items for agitation, aggression, and psychosis help quantify the symptom severity that may justify antipsychotic prescribing decisions and provide an objective measure of treatment response.
Clinical researchers and trial coordinators
NPI-Q is widely used as a secondary or exploratory endpoint in Alzheimer's disease and other dementia trials, providing a validated and administratively efficient BPSD measure for multi-site studies.
Aged care assessment teams
NPI-Q at residential care admission documents baseline neuropsychiatric symptom profile, enabling facility staff to implement personalised care plans and anticipate challenging behaviours.
NPI-Q is a two-stage instrument: first confirm symptom presence, then rate only those present. Rating severity for absent symptoms wastes time and introduces scoring errors. Follow the prescribed screening-then-rating sequence.
A caregiver may report low distress for severe symptoms (due to habituation) or high distress for mild symptoms (due to burnout). Always interpret and document both scores separately — they inform different interventions.
Beyond total scores, track changes in individual symptom items across clinic visits. Emergence of delusions or hallucinations warrants more urgent pharmacological review than persistence of mild irritability.
NPI-Q items for apathy and depression capture related but distinct syndromes in dementia. Apathy-dominant presentations respond poorly to antidepressants; depression-dominant presentations may respond well. Item-level review guides treatment selection.
NPI-Q asks about symptoms in the past month. For consistent serial measurement, aim to administer at regular intervals (e.g., every 3–6 months) and document the interval used.
NPI-Q items for nighttime behaviours and appetite/eating may reflect delirium, pain, constipation, or urinary tract infection rather than primary BPSD. Positive scores on these items should prompt medical review for treatable physical causes.
Informants unfamiliar with psychiatric symptom terminology (e.g., 'elation' or 'disinhibition') may under-report symptoms. Briefly explain each domain with behavioural examples before administration to improve response accuracy.
NPI-Q omits the frequency rating included in the full NPI. For research requiring frequency data or clinically detailed phenotyping, use the full 10–15-minute NPI instead of the NPI-Q.
NPI-Q is a validated brief dementia-behavior instrument derived from the full NPI and widely used in clinical and research settings.
Higher NPI-Q totals indicate greater neuropsychiatric symptom burden and/or caregiver distress, supporting closer monitoring and management optimization.
Use in dementia follow-up visits or behavioral-change evaluations when caregiver/informant observations are available.
Informant-based scoring is vulnerable to reporting bias and may vary with caregiver stress or contact frequency.
Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
April 21, 2026 · v1.0.0
Added NPI-Q trust metadata fields and baseline changelog for revision transparency.
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