Advantages and inconveniences of the Cox model compared with the logistic model: application to a study of risk factors of nursing cow infertility.
The survival Cox model and the logistic model were compared on a data set obtained from an ecopathological survey relative to the risk factors of nursing cow infertility. The risk factors resulting from the 2 models were the same. The Cox model has the advantage of preserving the variable in its original quantitative form, and of using a maximum of information. However, very restrictive conditions of application of this model make its use rather limited.
Centre d'Ecopathologie Animale, Villeurbanne, France.
F
F
Bugnard
C
C
Ducrot
D
D
Calavas
D000818:Animals; D001721:Birth Intervals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D004420:Dystocia / Q000453:epidemiology / Q000662:veterinary; D005260:Female; D005602:France / Q000453:epidemiology; D007247:Infertility, Female / Q000453:epidemiology / Q000662:veterinary*; D016015:Logistic Models; D011247:Pregnancy; D011336:Probability; D016016:Proportional Hazards Models; D012307:Risk Factors; D016019:Survival Analysis