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（neutering，含母犬卵巢摘除术spaying）对德国牧羊犬关节疾病与癌症发病率的影响，重点探究该手术是否会提升上述疾病的发病风险。研究人员对加州大学戴维斯分校（University of California, Davis）14.5年周期内的兽医院病历开展回溯分析，以明确不同年龄阶段接受去势手术的效应，指定的年龄分层包括：6月龄前、6至11月龄、1周岁以及2至8周岁。本次分析涵盖的疾病包括：髋关节发育不良（hip dysplasia）、前十字韧带撕裂（CCL tear）、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）。