The XXXX : charting global childbearing.

@entity1 @entity249 @entity233
Interviewing some 350,000 @entity1 in 42 developing countries and 20 developed countries representing nearly 40% of the world's population, the @entity249 ( @entity249 ) is in a unique position to document the historic 1970s slowdown in global population growth. This Bulletin describes efforts begun in 1972 to ensure high quality, internationally comparable, accessible data, the data's importance for policymakers, planners and researchers, and major findings available by early 1982 from directly assisted @entity249 surveys in 29 developing countries and contraceptive use data from @entity249 -type surveys in 16 developed countries. Marital fertility has declined in all developing regions except Africa but still averages from 4.6 @entity1 / @entity1 in Latin America to 6.7 in Africa, while preferred family size ranges from 3.0 @entity1 in @entity233 to 8.9 in Senegal--far above the average 2.2-2.5 @entity1 / @entity1 needed to end developing countries' population growth in the long run. However, @entity1 ages 15-19 prefer nearly 2 @entity1 fewer than the oldest @entity1 ages 45-49; 3.8 vs. 5.7 on the average. Nearly 1/2 (48%) of married @entity1 surveyed in 27 countreis said they wanted no more @entity1 . Preventing all unwanted births would reduce birth rates up to 15 births/1000 population in these countries. Overall, 32% of married, fecund @entity1 in developing countries are using contraception compared to an average 72% in 16 developed countries. Education, literacy, and more available family planning services increase contraceptive use. Age at marriage is rising in Asia, but this factor alone has little effect on fertility. @entity1 mortality is higher in many developing countries than previously thought. Breastfeeding is an important restraint on fertility in most developing countries but is declining among more educated, employed, and urban @entity1 which could raise fertility if not compensated for by gains in contraceptive use.
