Birth spacing and prolonged lactation in rural Zambia
Wenlock, R.W.
Journal of Biosocial Science 9(4): 481-485
1977
ISSN/ISBN: 0021-9320 PMID: 562345 DOI: 10.1017/s0021932000011317Document Number: 435382
Data were collected from 1044 mothers resident in the rural areas of Zambia during a National Nutrition Status Survey, to determine the effect of lactation on the interval between conceptions. Lactation was very prolonged with a small proportion of mothers continuing up to 33 mo. A main reason for cessation of breast-feeding appeared to be a new pregnancy, only 1.5% of mothers being neither pregnant nor lactating up to 12 mo. During lactation, conception was delayed for at least 12 mo. The peak in new conceptions occurred between 25 and 27 mo. The normal interval between births was 3 yr for rural Zambian mothers.