Regression analysis of the effect of full and partial lactation on post-partum amenorrhoea in lower middle class Indian females
Singh, G.
Indian Journal of Medical Sciences 51(6): 181-185
1997
ISSN/ISBN: 0019-5359 PMID: 9355722 Document Number: 271349
The influence of full and partial breast feeding on the duration of postpartum amenorrhea was investigated in 292 lower-middle-class women who delivered at Sir Sundar Lai Hospital in Varanasi, India, in 1992. In the 205 fully breast-feeding mothers, the coefficient of correlation between postpartum amenorrhea length and total lactation was 0.3899 (p 0.001). For women with a duration of lactation under 18 months and postpartum amenorrhea less than 12 months, the correlation coefficient was not significant. Among women with postpartum amenorrhea lasting 6 or more months and a total lactation period of 12 or more months, the correlation coefficient was 0.4081 (p 0.001). Finally, the correlation coefficient between the length of postpartum amenorrhea and duration of lactation in the 87 women who partially breast fed was 0.27075 (p 0.05). The finding of a greater influence of total than partial breast feeding suggests the presence of a qualitative association between lactation and postpartum amenorrhea.