Description
For female persons aged 18 to 49 who gave live birth in the past five years and who, during their last pregnancy, quit smoking for some period of time but then started smoking again, QTLENGTHPSNO reports the numeric values of the length of time that the person quit smoking during her pregnancy.
Users should combine QTLENGTHPSNO with QTLENGTHPSTP, which reports the time units for the numeric values in QTLENGTHPSNO, in order to identify the length of time that the person quit smoking during her pregnancy.
