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Age and sex boxplot. A, Presenting ages of the 1905 patients in cohorts of 20 years. The boxes indicate 25th, 50th, and 75th percentile of the age distributions. The red + represents a 116-year-old male outlier. B. The overall distribution of ages. A bootstrap analysis showed that the 10th, 25th, 50th, and 75th percentiles for female were all significantly older than for male (Text).
