Figure 2.

Dot plot of levels of autoantibodies in non-index monozygotic and dizygotic twins according to last serum samples before end of study or before progression to diabetes (if applicable). Y axis on left plots insulin concentration on log scale and on right plots GAD65 and ICA512 (index units) on log scale. Horizontal bars represent normal upper limit at 99th centile for each autoantibody. See table 2 for number of participants for whom each antibody was measured. Closed circles=monozygotic twins; open circles=dizygotic twins