Figure 2From: Is routine karyotyping required in prenatal samples with a molecular or metabolic referral?Boxplot showing the maternal age distribution in normal and abnormal karyotype results in the groups younger or 36 years and older. The box plots illustrate the median, 25th, and 75th percentiles. o Value more than 1.5 box-lengths from 75th/25th percentile (outliers).Back to article page