From the Press Release:

Research Studies Miss Key Information that Could Encourage Longer Breast-feeding, Improve Child Health

Breast-feeding children for longer periods can improve their health, and researchers have carried out dozens of studies to promote that practice and discourage early termination of breastfeeding. Nevertheless, that research may be overlooking essential information, according to a research article published recently in the Revista Panamericana de Salud Pública/Pan American Journal of Public Health.....

According to an editorial that accompanies the article, the innovative approach that this study applied could be used to improve programs that counsel mothers and encourage them to breast-feed their children.