Table 1. General data on selected studies from 2000-2012.

Legend: ^a 3 cases with type 2 diabetes were not considered. ^b The study reports on 1314 pregnancies in type 1 diabetes, 363 in type 2 diabetes. ^c Pregnant type 1 diabetic patients without nephropathy. ^d Cases: 94 with proteinuria <190 mg/24 h, 35 proteinuria 190-499 mg/24 h, 65 proteinuria >499 mg/24 h. ^e Controls are mentioned, data are not supplied. f 14 women. ^g Non-pregnant women with diabetic nephropathy. ^h 58 women. ⁱ Cases: 8 type 1 diabetes with UAE 30-300 mg/day, 5 gestational diabetes with UAE 30-300 mg/day, 3 with UAE > 300 mg/day. Abbreviations: Ctrls – controls, DN – diabetic nephropathy, IDDM – insulin-dependent diabetes mellitus, n – number of pregnancies, NR – not reported, PE – pre-eclampsia, Pro – prospective, Pts – patients, Ret – retrospective. References [64-79].