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Changes in proportion of canine urinary calculi composed of calcium oxalate or struvite in specimens analyzed from 1981 through 2001.
J Vet Intern Med. 2003 Nov-Dec; 17(6):817-23.JV

Abstract

The objective of this report was to characterize 20-year changes in proportion of calcium oxalate (CaOx) calculi and struvite calculi in dogs, and associations with breed, age, and sex. In this retrospective study, results of analysis of urinary calculi from dogs were reviewed for specimens received between July 1, 1981, and December 31, 2001. Breed, sex, age, year of submission of the specimen, and mineral type(s) were analyzed statistically. CaOx or Struvite or both were contained in 18,966 of 20,884 (91%) specimens. For both sexes, a 20-year statistically significant increase was observed in the proportion of calculus specimens that contained CaOx. The increase in this proportion was greater in females (1% to 31%) than in males (18% to 82%). From 1998 to 2001, when proportions may have plateaued, the odds of specimens containing CaOx were markedly higher in 18 breeds, markedly lower in 5 breeds, and not significantly different in 13 breeds compared with crossbreds. For both sexes, a 20-year statistically significant decrease was observed in the proportion of calculus specimens that contained struvite. This decrease in proportion was greater for males (79-16%) than for females (97-68%). From 1998 to 2001, when proportions plateaued, the odds of calculi containing struvite were markedly lower in 20 breeds, markedly higher in 1 breed, and not significantly different in 15 breeds when compared with crossbreds. Breed, age, and sex were associated statistically with CaOx or struvite urolithiasis. In conclusion, there appears to have been a long-term increase in the proportion of specimens of canine urinary calculi that contain CaOx as well as a long-term decrease in the proportion of specimens of calculi that contain struvite for both male and female dogs. The rate of change appeared to begin leveling off in the period 1998 to 2001. The recent proportion of dogs with either CaOx- or struvite-associated urolithiasis may depend on breed, age, and sex, and on interactions among these 3 factors.

Authors+Show Affiliations

Urinary Stone Analysis Laboratory, Department of Medicine and Epidemiology, University of California, Davis, CA 95616, USA. gvling@ucdavis.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

14658718

Citation

Ling, Gerald V., et al. "Changes in Proportion of Canine Urinary Calculi Composed of Calcium Oxalate or Struvite in Specimens Analyzed From 1981 Through 2001." Journal of Veterinary Internal Medicine, vol. 17, no. 6, 2003, pp. 817-23.
Ling GV, Thurmond MC, Choi YK, et al. Changes in proportion of canine urinary calculi composed of calcium oxalate or struvite in specimens analyzed from 1981 through 2001. J Vet Intern Med. 2003;17(6):817-23.
Ling, G. V., Thurmond, M. C., Choi, Y. K., Franti, C. E., Ruby, A. L., & Johnson, D. L. (2003). Changes in proportion of canine urinary calculi composed of calcium oxalate or struvite in specimens analyzed from 1981 through 2001. Journal of Veterinary Internal Medicine, 17(6), 817-23.
Ling GV, et al. Changes in Proportion of Canine Urinary Calculi Composed of Calcium Oxalate or Struvite in Specimens Analyzed From 1981 Through 2001. J Vet Intern Med. 2003 Nov-Dec;17(6):817-23. PubMed PMID: 14658718.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Changes in proportion of canine urinary calculi composed of calcium oxalate or struvite in specimens analyzed from 1981 through 2001. AU - Ling,Gerald V, AU - Thurmond,Mark C, AU - Choi,Young K, AU - Franti,Charles E, AU - Ruby,Annette L, AU - Johnson,Deedra L, PY - 2003/12/9/pubmed PY - 2004/3/24/medline PY - 2003/12/9/entrez SP - 817 EP - 23 JF - Journal of veterinary internal medicine JO - J. Vet. Intern. Med. VL - 17 IS - 6 N2 - The objective of this report was to characterize 20-year changes in proportion of calcium oxalate (CaOx) calculi and struvite calculi in dogs, and associations with breed, age, and sex. In this retrospective study, results of analysis of urinary calculi from dogs were reviewed for specimens received between July 1, 1981, and December 31, 2001. Breed, sex, age, year of submission of the specimen, and mineral type(s) were analyzed statistically. CaOx or Struvite or both were contained in 18,966 of 20,884 (91%) specimens. For both sexes, a 20-year statistically significant increase was observed in the proportion of calculus specimens that contained CaOx. The increase in this proportion was greater in females (1% to 31%) than in males (18% to 82%). From 1998 to 2001, when proportions may have plateaued, the odds of specimens containing CaOx were markedly higher in 18 breeds, markedly lower in 5 breeds, and not significantly different in 13 breeds compared with crossbreds. For both sexes, a 20-year statistically significant decrease was observed in the proportion of calculus specimens that contained struvite. This decrease in proportion was greater for males (79-16%) than for females (97-68%). From 1998 to 2001, when proportions plateaued, the odds of calculi containing struvite were markedly lower in 20 breeds, markedly higher in 1 breed, and not significantly different in 15 breeds when compared with crossbreds. Breed, age, and sex were associated statistically with CaOx or struvite urolithiasis. In conclusion, there appears to have been a long-term increase in the proportion of specimens of canine urinary calculi that contain CaOx as well as a long-term decrease in the proportion of specimens of calculi that contain struvite for both male and female dogs. The rate of change appeared to begin leveling off in the period 1998 to 2001. The recent proportion of dogs with either CaOx- or struvite-associated urolithiasis may depend on breed, age, and sex, and on interactions among these 3 factors. SN - 0891-6640 UR - https://www.unboundmedicine.com/medline/citation/14658718/Changes_in_proportion_of_canine_urinary_calculi_composed_of_calcium_oxalate_or_struvite_in_specimens_analyzed_from_1981_through_2001_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0891-6640&date=2003&volume=17&issue=6&spage=817 DB - PRIME DP - Unbound Medicine ER -