Projected and observed exclusive breastfeeding for age groups 12–13 to 34–35 months of age, with reference lines of 10% (short dashes) and 1% (long dashes) prevalence in AfrE. Low but non-zero observed rates of exclusive breastfeeding throughout second and third year of childhood in AfrE, with persistent rates of about 1%, show limitations of 24-hour recall. This pattern is also typical for AmrB, AmrD, SearB and SearD (EmrB had no observations of exclusive breastfeeding during the second and third year of childhood).
Lauer et al. BMC Medicine 2004 2:26 doi:10.1186/1741-7015-2-26