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Metrology Instruments

Face of orange long haired cat

Feline Musculoskeletal Pain Index (FMPI):


The owner’s assessment of the severity of chronic pain in their cat, and the impact this has on everyday activity and interaction

Description and Characteristics:

The FMPI is a questionnaire with appropriate readability, reliability and proven discriminatory ability. Full validity testing is continuing, and further versions of the FMPI may well take place in the future.

Funding for Development:

The CPRL is very grateful to Morris Animal Foundation and to Novartis Animal Health for sponsoring the work that has led to the FMPI


Gruen M, Griffith E, Thomson A, Simpson W, Lascelles BDX. A novel approach to the detection of clinically relevant pain relief in cats with degenerative joint disease associated pain. Journal of Veterinary Internal Medicine, 2014 Feb 10. doi: 10.1111/jvim.12312. [Epub ahead of print]

Benito J, Hansen B, DePuy V, Davidson G, Thomson A, Simpson W, Roe S, Hardie E, Lascelles BDX. Feline Musculoskeletal Pain Index (FMPI): Responsiveness and Criterion Validity Testing. Journal of Veterinary Internal Medicine, 2013 May-Jun;27(3):474-82.

Benito J, Hardie E, Zamprogno H, Thomson A, Simpson W, Roe S, Hansen B, Lascelles BDX. Reliability and discriminatory testing of a client-based metrology instrument, Feline Musculoskeletal Pain Index – FMPI, for the evaluation of degenerative joint disease associated pain in cats. The Veterinary Journal, 2013 Jun;196(3):368-73. 

Zamprogno H, Hansen BD, Bondell HD, Thomson Sumrell A, Simpson W, Robertson I, Brown J, Pease A, Roe SC, Hardie E, Wheeler SJ, Lascelles BDX. Item generation and design testing of a questionnaire to assess degenerative joint disease-associated pain in cats. Am J Vet Res. 2010; 71(12): 1417-24



Subjective Nighttime Restlessness Evaluation (SNORE):

More information coming-check back later!