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Site-level variation in infant management. The box plots consist of the 25th (quartile 1), 50th (median), and 75th (quartile 3) percentiles. The length of the whiskers represents the minimum (quartile 1 – 1.5 × IQR) and maximum (quartile 3 + 1.5 × IQR), where IQR = quartile 3 – quartile 1 (IQR). Each dot represents a single site proportion and the asterisk denotes outliers.
