MC Perrin Department of Psychiatry, School of Medicine, New York University, 550 1st Avenue, New York, NY 10017, USA and Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA , MB Terry Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA , K Kleinhaus New York State Psychiatric Institute, 1051 Riverside Avenue, New York, NY 10032, USA , L Deutsch Unit of Epidemiology, The Hebrew University-Hadassah School of Public Health, Ein Kerem, Jerusalem, 91120, Israel , R Yanetz Unit of Epidemiology, The Hebrew University-Hadassah School of Public Health, Ein Kerem, Jerusalem, 91120, Israel , E Tiram Unit of Epidemiology, The Hebrew University-Hadassah School of Public Health, Ein Kerem, Jerusalem, 91120, Israel , R Calderon Unit of Epidemiology, The Hebrew University-Hadassah School of Public Health, Ein Kerem, Jerusalem, 91120, Israel , Y Friedlander Unit of Epidemiology, The Hebrew University-Hadassah School of Public Health, Ein Kerem, Jerusalem, 91120, Israel , O Paltiel Unit of Epidemiology, The Hebrew University-Hadassah School of Public Health, Ein Kerem, Jerusalem, 91120, Israel , S Harlap Department of Psychiatry, School of Medicine, New York University, 550 1st Avenue, New York, NY 10017, USA and Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA

Results

The assumption of proportionality over time was met based on a visual inspection of log negative log survival plot. There were 37926 women available for study, including 410 diagnosed with gestational diabetes during one or more pregnancies in 1964–1976. Table 1 compares the characteristics of women with and without this pregnancy complication. Women with gestational diabetes tended to be older at the baseline birth, multiparous at the last birth and o