The Effect of Breast-feeding in Contraception which is a Method of Natural Family Planning

Background: bongaarts's model of ci calculation was used to calculate the contribution of breast-feeding to family planning.methods: this cross-sectional study was conducted in the area of istanbul (turkey) silivri public health practice and research center between the dates of 20th may-1st october 2005. in this study whole under 1 year old babies, composed the sample (n=1247). bongaarts model can be summarized as total fertility rate (tfr)= tf x ci x ca x cc x cm and takes its bases from tf (total fertility). ci is the postparum infekunditi index. ci= 20(18.5+i) is calculated by this formula. the first menstruation period, after pregnancy ends, was taken as the value 'i'.results: the average age for the total 1247 mothers who contributed to this study was 26.7±5.2 (r: 16 - 50) yr. the women whose menstruation turned back (n=830), the average amenore period was found as 3.0±1.9 (1-12 months). ci's average value was 0.94±0.07 (0,66-1.03) and a r= -0.08, p= 0.012 correlation was appointed between mother's age and ci. 7.7% of participants (n: 96) used breast-feeding as a contraceptive method. these participants used breast-feeding as contraception for 16.9±14.5 wk.conclusions: breast-feeding is a reliable and a positive affecting method of family planning for both improving the baby and mother's health. furthermore also by affecting tfr over ci, it provides a positive contribution to society health.