Department of Clinical Sciences, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, SE-75007 Uppsala, Sweden.
J Vet Intern Med. 2009 Nov-Dec;23(6):1175-83. doi: 10.1111/j.1939-1676.2009.0396.x. Epub 2009 Sep 22.
A cat life insurance database can potentially be used to study feline mortality.
The aim was to describe patterns of mortality in life-insured Swedish cats. Cats: All cats (<13 years of age) with life insurance during the period 1999-2006 were included.
Age-standardized mortality rates (MR) were calculated with respect to sex (males and females), age, breed, and diagnosis. Survival to various ages is presented by time period and breed.
The total number of cats insured was 49,450 and the number of cat-years at risk (CYAR) was 142,049. During the period, 6,491 cats died and of these 4,591 cats (71%) had a diagnosis, ie, were claimed for life insurance. The average annual MR was 462 deaths per 10,000 CYAR (95% confidence interval, 431-493). Sex-specific rates did not differ significantly. The overall mortality of the Persian and the Siamese groups was higher than that of several other breeds. Overall and breed-specific (for most breeds) survival increased with time when analyzed by 2-year periods. The 6 most common diagnostic categories (ignoring cats recorded as dead with no diagnosis) were urinary, traumatic, neoplastic, infectious, cardiovascular, and gastrointestinal. The MR within diagnostic categories varied by age and breed.
In this mainly purebred, insured cat population, the overall mortality varied with age and breed but not with sex. The increase in survival over time is likely a reflection of willingness to keep pet cats longer and increased access to and sophistication of veterinary care.
宠物猫寿险数据库可用于研究猫的死亡率。
本研究旨在描述有寿险的瑞典猫的死亡模式。
所有在 1999-2006 年期间投保的<13 岁猫均被纳入研究。
根据性别（雄性和雌性）、年龄、品种和诊断计算标准化死亡率（MR）。通过时间段和品种呈现不同年龄的生存情况。
总投保猫数为 49450 只，风险猫年数（CYAR）为 142049。在此期间，有 6491 只猫死亡，其中 4591 只猫（71%）有诊断，即申请了寿险理赔。年平均 MR 为每 10000CYAR 死亡 462 例（95%置信区间，431-493）。性别特异性率无显著差异。波斯猫和暹罗猫的总体死亡率高于其他几个品种。通过每 2 年时间段分析，整体和品种特异性（对大多数品种而言）的存活率随时间增加而增加。6 个最常见的诊断类别（忽略无诊断记录的死亡猫）是泌尿系统、创伤性、肿瘤、传染性、心血管和胃肠道疾病。诊断类别内的 MR 随年龄和品种而变化。
在这个主要是纯种、有保险的猫群中，总体死亡率随年龄和品种而变化，但与性别无关。随着时间的推移，存活率的增加可能反映了饲养宠物猫的意愿延长，以及兽医护理的可及性和复杂性提高。
