Figure 3. Manual quality rating varies by age.

Image quality improves with age during adolescence in both training (A) and internal testing samples (B) using PNC data, whereas data quality declines with aging over the adult lifespan in the external test dataset (C). In A-C, dark line represents a linear fit; shaded envelope represents 95% confidence intervals; reported significance values are calculated using partial Spearman's correlations after regressing out gender trends.