Fig 3.

Association between maternal type 1 diabetes and risk of major birth defects, using alternative measures of poor glycaemic control and diabetes severity. *Adjusted for calendar year, maternal age, country of birth, living with partner, education, parity, body mass index, smoking status, and other autoimmune diseases. The reference category in all analyses was infants born to mothers without diabetes (see table 2 for number of infants, number of events, and number of events per 1000 infants). Long term glycaemic control was defined as the mean of the last three measurements for glycated haemoglobin. The risk ratio plot uses a log scale