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Male newborns’ birth weights estimated using the fitted second-order Reeds model. (a) Histogram of estimated birth weights with the threshold for identifying low birth weight (vertical dotted line), corresponding to the 14.29 percentile, or 2.64 Kg. (b) Comparison of the distribution of estimated birth weights (red) with the measured birth weights in the 2015 Guatemalan national survey for male newborns of rural Chimatenalgo (blue dashed line).
