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. 2015 Aug 6;10(8):e0134571. doi: 10.1371/journal.pone.0134571

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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Fig 4 — The figure shows estimates and 95% confidence intervals adjusted for the survey design. Weighted frequencies are shown on the x-axis. The sample size (unweighted) differs from that listed on Fig 3 due to missing data regarding the infants’ status for a few mother-infant pairs.