The Oxford-Family Planning Association contraceptive study.

摘要: The Oxford-Family Planning Association contraceptive study involves over 17 000 women who were recruited at clinics in England and Scotland during the interval 1968-74 have been followed up ever since. This paper describes survey methods, characteristics of participants, progress study, main results publications to date, proposals for future work. Although was originally mainly concerned with benefits risks oral contraceptives it has, fact, contributed knowledge about a wide variety birth control methods. data on efficacy are special value that they cover all methods contraception common use derived from homogeneous closely observed population. mortality figures, while limited extent, supplemented findings Royal College General Practitioners study. Reports morbidity many different diseases published; these documented both beneficial harmful effects various return fertility after discontinuation unique, contributions also made outcome pregnancy those stopping planned baby or becoming accidentally pregnant using method. which is supported by Medical Research Council, currently funded until mid-1989.