Canine Chronic Pain Index Calculator (CBPI-Style)
A CBPI-style questionnaire for tracking chronic pain - most commonly osteoarthritis - in dogs at home. Score 10 items across two domains, pain severity and pain interference with function, each 0-10, then use the combined score to track how a dog responds to treatment over time.
Best used for serial monitoring, not a one-time diagnosis.
Score before starting an NSAID or pain-management trial, then reassess in 2-4 weeks. A meaningful improvement is generally considered a reduction of roughly 1-2 points (or ~15-20%) in both scores.
Pain severity
Pain at its worst in the last 7 days
0Pain at its least in the last 7 days
0Average pain over the last 7 days
0Pain right now
0Pain interference
General activity
0Enjoyment of life
0Ability to rise to standing from lying down
0Ability to walk
0Ability to run
0Ability to climb stairs
0Pain Severity Score
0.0 / 10Pain Interference Score
0.0 / 10In practice, PSS and PIS are for tracking an individual dog's trend over time - not a one-time diagnostic cutoff. Reassess with the same 10 items on the same dog to judge response to treatment.
How to use this tool
What this tool is modeled on
This tool is modeled on the published severity/interference structure behind the Canine Brief Pain Inventory (CBPI), developed at the University of Pennsylvania (Brown DC et al.) for chronic pain such as osteoarthritis in dogs. It is not the official CBPI instrument - for the validated, licensed version, use the published University of Pennsylvania questionnaire.
How it's scored
Pain Severity Score (PSS) is the average of 4 items: pain at its worst, at its least, on average, and right now, each 0-10. Pain Interference Score (PIS) is the average of 6 items covering general activity, enjoyment of life, rising, walking, running, and climbing stairs, each 0-10.
CBPI-style vs. Glasgow Composite Pain Scale
The Glasgow Composite Measure Pain Scale (CMPS-SF) is an observer-scored tool for acute pain, used in-clinic in the post-operative period. A CBPI-style tool is owner-completed and tracks chronic pain at home over weeks - typically for osteoarthritis management.
What counts as improvement
A reduction of roughly 1-2 points (or about 15-20%) in both PSS and PIS is the convention used in veterinary osteoarthritis drug trials to define a clinically meaningful response. Score before starting a trial (e.g. an NSAID) and reassess in 2-4 weeks.
Other validated options
The Liverpool Osteoarthritis in Dogs (LOAD) scale and the Helsinki Chronic Pain Index (HCPI) are other validated canine chronic pain instruments. For cats, CBPI, LOAD, and HCPI don't apply - use the Feline Musculoskeletal Pain Index (FMPI) instead.
Frequently asked questions
What is the Canine Brief Pain Inventory (CBPI)?
The CBPI is a validated owner-completed questionnaire developed at the University of Pennsylvania for chronic pain - most often osteoarthritis - in dogs. It scores two domains, pain severity and pain interference with function, each 0-10. This tool is modeled on that published severity/interference structure; it is not the official licensed CBPI instrument.
How is CBPI different from the Glasgow Composite Pain Scale?
The Glasgow Composite Measure Pain Scale (CMPS-SF) is an observer-scored tool for acute pain, used in-clinic in the post-operative period. A CBPI-style tool is owner-completed and tracks chronic pain at home over weeks - typically for osteoarthritis management - rather than a single in-clinic snapshot.
What is a clinically meaningful change in score?
A reduction of roughly 1-2 points, or about 15-20%, in both the Pain Severity Score and Pain Interference Score is the convention used in veterinary osteoarthritis drug trials to define a meaningful treatment response.
Are there other validated chronic pain tools for dogs?
Yes - the Liverpool Osteoarthritis in Dogs (LOAD) scale and the Helsinki Chronic Pain Index (HCPI) are other validated canine chronic pain instruments. CBPI, LOAD, and HCPI are all canine-specific; for cats, use the Feline Musculoskeletal Pain Index (FMPI) instead.