Figure 3From: Measuring infertility in populations: constructing a standard definition for use with demographic and reproductive health surveys Boxplots of primary and secondary infertility prevalence by age for 12-, 24-, and 60-month exposure periods, 53 Demographic and Health Surveys. The boxplots depict the distribution of values for each estimate, showing the range with the whiskers and the interquartile range and median with the box.Back to article page