Date of start of use of the contraceptive method in use in the first month of the calendar - year.
Variables V385 to V392 refer to the use/nonuse of contraception in the interval between the last birth prior to the start of the calendar and the start of the calendar.
This site uses cookies to optimize functionality and give you the best possible experience. If you continue to navigate this website beyond this page, cookies will be placed on your browser. To learn more about cookies, click here.