FPTYPRHYMN (M304A_08) reports whether the rhythm method or periodic abstinence is considered to be a modern method, a traditional method, or a folkloric method of family planning in a given sample.
In the DHS, generally modern methods are the Pill, IUD, injections, diaphragm, condom, female sterilization, male sterilization, implants, female condom, foam/jelly, lactational amenorrhea, and emergency contraception. Traditional methods are periodic abstinence (rhythm), withdrawal, and abstinence. Folkloric methods are the category "other" and country-specific methods (such as herbs or amulet), which vary across samples.
IPUMS-DHS users may be interested in the complementary variable FPTYPNOWMN (MV313), which indicates whether the man's current contraceptive method is modern, traditional, or folkloric.