Consequences of intrauterine contraception in diabetic women**The study of the corrosion investigations was supported by the Schering Company.

A study has been performed covering the clinical consequences of copper intrauterine device insertion in 103 insulin-dependent women and in 119 nondiabetic control subjects. Furthermore, the progress of corrosion has been measured in 15 intrauterine devices removed from diabetic women, and the results were compared with data obtained from nondiabetic women. The clinical data did not reveal any differences in the total continuation rates or in the removal rates because of accidental pregnancy or pelvic inflammation between the diabetic and the nondiabetic women after 3 and 12months. Also, the maximal depth of corrosion as well as the distribution and the biochemical constitution of the corrosion products deposited on the copper wires were found identical in the two groups studied.