Effects of Neutering in German Shepherd Dogs

Datasets used to study the effects of neutering (including spaying) in increasing the incidence of joint disorders and cancers in German Shepherd Dogs. Veterinary hospital records from the University of California, Davis were examined over a 14.5-year period 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, urinary incontinence, and degenerative myelopathy.

本数据集用于研究去势术（含卵巢子宫摘除术，spaying）对德国牧羊犬关节疾病与癌症发病率的影响，重点考察其升高两类病症发病率的作用。研究团队对加州大学戴维斯分校的兽医医院病历展开了为期14.5年的回溯分析，以探究不同年龄阶段接受去势术对病症发病率的影响，指定年龄分层包括：6月龄前、6至11月龄、1岁时，以及2至8岁期间。本次研究考察的病症包括：髋关节发育不良（hip dysplasia）、十字韧带（CCL）撕裂、肘关节发育不良（elbow dysplasia）、淋巴肉瘤（lymphosarcoma）、肥大细胞瘤（mast cell tumor）、血管肉瘤（hemangiosarcoma）、骨肉瘤（osteosarcoma）、乳腺癌（mammary cancer）、子宫蓄脓（pyometra）、尿失禁（urinary incontinence）以及退行性脊髓病（degenerative myelopathy）。