作者: Sarah Lewit
DOI: 10.1007/978-1-4612-4702-9_6
关键词: Research methodology 、 Medicine 、 Lost to follow-up 、 Continuation rate 、 Medical physics 、 Family planning 、 Intrauterine contraception 、 Health services 、 Gynecology 、 Confidence interval 、 Theoretical models
摘要: The article was prepared for clinical research workers. It lists and describes statistical procedures evaluating IUDs if less than 10% of the group is lost to follow up giving definitions terms type information include how calculate net gross cumulative termination rates using a life table approach an easy method estimating 95% confidence limits.