Fig. 3
From: Agreement between self-reported and registered age at asthma diagnosis in Finland
Time difference between diagnoses and Bland-Altman plot in Helsinki (A, C) and in Western Finland (B, D). In boxplots (A, B), median and IQR is shown. Whiskers represent 5th and 95th percentiles. The distribution of time difference is shown in the histograms (A, B). Negative values indicate earlier self-reported age at diagnosis. In Bland-Altman plots (C, D), solid line (━) represents median, and the dashed lines (- - -) represent limits of agreement (90% of the measured values). Shaded area represents 95% confidence intervals