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Barbara A. Peddie, PhD; Salah I. Gorrie, RN; Ross R. Bailey, MD, FRACP, FRCP
Christchurch Hospital Christchurch, New Zealand

JAMA. 1986;255(13):1707.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

We were most interested to read the article by Fihn et al¹ reporting that women using a diaphragm for contraception have an increased incidence of urinary tract infection.

As Dr Fihn and colleagues¹ pointed out, we had earlier reported² that women using diaphragms for contraception more frequently had gramnegative bacilli isolated from vaginal swabs and suggested that this may provide a source for ascending gramnegative urinary tract infections. We also noted a higher rate of isolation of gram-positive cocci from the vaginal swabs of women using intrauterine contraceptive devices.

Since our initial study² we have cultured the urine of 320 women attending a family planning center to assess whether those using diaphragms or intrauterine contraceptive devices have a higher prevalence of asymptomatic urinary tract infection. The results are summarized in the Table. Those women using diaphragms had a statistically higher incidence of asymptomatic . . . [Full Text PDF of this Article]

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