Effects of Neutering Across Breeds and Mixed Breeds

Datasets used to study the effects of neutering (including spaying) in increasing the incidence of joint disorders and cancers in Australian Cattle Dogs, Australian Shepherds, Beagles, Bernese Mountain Dogs, Border Collies, Boston Terriers, Boxers, Bulldogs, Cavalier King Charles Spaniels, Chihuahuas, Cocker Spaniels, Collies, Corgis, Dachshunds, Doberman Pinschers, English Springer Spaniels, German Shepherds, Golden Retrievers, Great Danes, Irish Wolfhounds, Jack Russell Terriers, Labrador Retrievers, Malteses, Miniature Schnauzers, Pomeranians, Poodles (3 varieties), Pugs, Rottweilers, Saint Bernards, Shetland Sheepdogs, Shih Tzus, West Highland White Terriers, Yorkshire Terriers, and 5 weight categories of mixed breed dogs: small (&lt;10kg), medium (10-19kg), standard (20-29kg), large (30-39kg), and giant (40+kg). Veterinary hospital records from the University of California, Davis were examined for dogs ranging from ages 1 to 11 for the effects of neutering during the specified age ranges: before 6 mo., and during 6-11 mo., during 1 year and in years 2 through 8. The diseases examined were hip dysplasia, CCL tear, elbow dysplasia, lymphosarcoma, mast cell tumor, hemangiosarcoma, osteosarcoma, mammary cancer, pyometra, and urinary incontinence.<br>

本数据集用于研究绝育（neutering，包括spaying（卵巢子宫摘除术））对以下犬只的关节疾病与癌症发病率的影响：澳大利亚牧牛犬、澳大利亚牧羊犬、比格犬、伯恩山犬、边境牧羊犬、波士顿梗、拳师犬、斗牛犬、查理士王小猎犬、吉娃娃、可卡犬、柯利牧羊犬、柯基犬、腊肠犬、杜宾犬、英国史宾格犬、德国牧羊犬、金毛寻回犬、大丹犬、爱尔兰猎狼犬、杰克罗素㹴、拉布拉多寻回犬、马尔济斯犬、迷你雪纳瑞、博美犬、贵宾犬（3个品种类型）、巴哥犬、罗威纳犬、圣伯纳犬、设得兰牧羊犬、西施犬、西部高地白㹴、约克夏㹴，以及5个体重分级的混血犬：小型（<10kg）、中型（10-19kg）、标准型（20-29kg）、大型（30-39kg）、巨型（≥40kg）。本研究调取了加州大学戴维斯分校兽医院的病历档案，对年龄介于1至11岁的犬只展开分析，探究在指定年龄区间内绝育所产生的影响：6月龄前、6至11月龄、1岁时，以及2至8岁时。本次研究关注的疾病包括：髋关节发育不良、十字韧带（CCL）撕裂、肘关节发育不良、淋巴肉瘤、肥大细胞瘤、血管肉瘤、骨肉瘤、乳腺癌、子宫蓄脓以及尿失禁。