Johnson Eric B, Mackay Robert J, Hernandez Jorge A
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA.
J Am Vet Med Assoc. 2010 May 15;236(10):1091-7. doi: 10.2460/javma.236.10.1091.
OBJECTIVE-To estimate prevalence of and identify factors associated with anhidrosis in horses in Florida. Design-Cross-sectional study and case-control study. ANIMALS-4,620 horses on 500 farms. PROCEDURES-A questionnaire was structured and mailed to farm owners or managers to obtain information related to diagnosis of anhidrosis in horses and exposure factors associated with this condition. The frequency of investigated farm- and animal-level factors was compared between farms and horses affected and not affected with anhidrosis, respectively. RESULTS-The prevalence of anhidrosis was 11% at the farm level and 2% at the animal level. The odds of anhidrosis were 2.13 and 4.40 times as high in farms located in central and southern Florida, respectively, compared with odds for farms in northern Florida. The odds of anhidrosis were 5.26 and 15.40 times as high in show and riding instruction operations, respectively, compared with odds for ranch operations. At the animal level, breed (Thoroughbreds and warmblood horses), foaling place (western or midwestern region of the United States), and family history of anhidrosis were significantly associated with anhidrosis. CONCLUSIONS AND CLINICAL RELEVANCE-This study provides new information on the prevalence of and factors for anhidrosis in horses in Florida. Horses with a family history of anhidrosis should be examined by a veterinarian for diagnosis of this condition before they are exposed to exercise in a hot and humid climate.
目的——评估佛罗里达州马匹无汗症的患病率并确定与之相关的因素。设计——横断面研究和病例对照研究。动物——500个农场的4620匹马。程序——设计一份问卷并邮寄给农场主或管理人员，以获取与马匹无汗症诊断及与此病症相关的暴露因素的信息。分别比较受无汗症影响和未受影响的农场及马匹中所调查的农场层面和动物层面因素的频率。结果——农场层面无汗症的患病率为11%，动物层面为2%。与佛罗里达州北部的农场相比，位于佛罗里达州中部和南部的农场发生无汗症的几率分别高2.13倍和4.40倍。与牧场经营相比，表演和骑乘教学经营中发生无汗症的几率分别高5.26倍和15.40倍。在动物层面，品种（纯种马和温血马）、出生地点（美国西部或中西部地区）以及有无无汗症家族史与无汗症显著相关。结论及临床意义——本研究提供了有关佛罗里达州马匹无汗症患病率及相关因素的新信息。有家族性无汗症病史的马匹在炎热潮湿气候中进行运动前，应由兽医进行检查以诊断此病症。
