Fig. 1

First and second serum mannose-binding levels in 14 adults with IgG subclass deficiency. Correlation of first and second serum mannose-binding levels expressed as natural logarithms (ln) in 14 adults with IgG subclass deficiency. The median interval between the first and second measurements was 125 days (range 18–1031). The lowest point represents observations on four patients. For ln-transformed data: adjusted r² = 0.9675; Pearson correlation coefficient 0.9849; p < 0.0001. For non-transformed data: adjusted r² = 0.7933; Pearson correlation coefficient 0.8935; p < 0.0001 (graph not shown)