What is the NPI-Q and how does it differ from the full NPI?

The NPI-Q (Neuropsychiatric Inventory Questionnaire) is a brief caregiver-rated version of the full Neuropsychiatric Inventory. It retains all 12 symptom domains but omits frequency ratings, reducing administration time from 15–30 minutes to approximately 5–10 minutes.

What are the NPI-Q score ranges?

NPI-Q symptom severity total ranges from 0 to 36 (12 symptoms x maximum severity 3). Caregiver distress total ranges from 0 to 60 (12 symptoms x maximum distress 5). Both are reported separately.

Who developed the NPI-Q?

NPI-Q was developed by Kaufer and colleagues as a brief version of the full NPI (developed by Cummings et al.). The NPI-Q validation study was published in the Journal of Neuropsychiatry and Clinical Neurosciences in 2000.

Is NPI-Q validated for Alzheimer's disease specifically?

Yes. NPI-Q was primarily developed and validated in Alzheimer's disease patients but is also widely used in other dementias including vascular dementia, Lewy body dementia, and frontotemporal dementia.

Can NPI-Q be used to monitor treatment response?

Yes. Serial NPI-Q administration is an efficient way to monitor treatment response to pharmacological and non-pharmacological interventions for behavioural and psychological symptoms of dementia (BPSD).

What does a high caregiver distress score mean?

High caregiver distress (especially scores above 15–20) indicates significant emotional burden on the carer. This warrants intervention including respite care, psychoeducation, coping strategy training, or psychological support.

How long does NPI-Q take to administer?

NPI-Q typically takes 5–10 minutes when administered by a trained clinician to an informed caregiver. Self-administered versions (mailed to carers before appointments) can be completed in a similar timeframe.

Is NPI-Q appropriate for use across all dementia stages?

NPI-Q can be used across mild, moderate, and severe dementia. Neuropsychiatric symptom profiles vary by stage — apathy is common across all stages; psychosis and motor disturbances increase in moderate-to-severe disease.

What is the relationship between NPI-Q scores and caregiver burden?

Higher NPI-Q scores are associated with greater overall caregiver burden, earlier nursing home placement, and reduced quality of life for both patients and carers.

Can NPI-Q be self-administered by the caregiver?

Yes. NPI-Q has been validated as a self-administered instrument. Written instructions with behavioural examples for each symptom domain allow carers to complete it independently, though clinician review of completed forms is recommended.

Online Medical Tools — NPI-Q

Printed on 9/3/2026

For informational purposes only. This is not medical advice.

Geriatrics

NPI-Q

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.

NPI-Q severity total

NPI-Q caregiver distress total

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How It Works

Screen for Presence of 12 Neuropsychiatric Symptoms

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.

Rate Severity and Caregiver Distress for Present Symptoms

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.

Calculate Separate NPI-Q and Distress Totals

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.

Who Uses the NPI-Q

Dementia Follow-Up Clinic Assessment

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.

Caregiver Distress Assessment and Support

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.

Antipsychotic Prescribing and Monitoring

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 Trial Endpoint in Dementia Research

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.

Care Home Admission Assessment

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.

Pro Tips

Screen Before Rating — Do Not Rate Absent Symptoms

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.

Caregiver Distress Score Is Clinically Independent

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.

Track Item-Level Changes Across Visits

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.

Distinguish Apathy From Depression Carefully

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.

Administer at Consistent Time Points

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.

Nighttime and Appetite Items Signal Physical Comorbidity

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.

Educate Carers on What Each Symptom Means

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.

Use Full NPI for Research Requiring Frequency Ratings

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.

Common Questions About Your Results

Evidence-Based Methodology

NPI-Q is a validated brief dementia-behavior instrument derived from the full NPI and widely used in clinical and research settings.

Clinical Content Trust

Last reviewed:: April 21, 2026
Guideline version:: BPSD Assessment Review 2026.04
Source set version:: NPI-Q source set v1

How to Interpret Your Result

Higher NPI-Q totals indicate greater neuropsychiatric symptom burden and/or caregiver distress, supporting closer monitoring and management optimization.

When to Use This Tool

Use in dementia follow-up visits or behavioral-change evaluations when caregiver/informant observations are available.

Limitations

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.

Sources

Changelog

April 21, 2026 · v1.0.0
Added NPI-Q trust metadata fields and baseline changelog for revision transparency.

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