This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.
To the Editor:—
In The Journal, April 16, 1960, p. 744, Drs. Doyle, Evers, and Sapit report on "The New Fertility Testing Tape," stating that a paper tape impregnated with glucose oxidase and a peroxidase will turn from pink to blue in the presence of glucose. In the cervical mucus, the glucose is alleged to be derived partly from the follicular fluid, although the possibility of some glucose being derived from glycolysis within the fundus and cervix is postulated. They recommend the use of a special vaginal applicator to hold the testing paper. If, after 3 minutes in the vagina, it turns blue, the woman is presumed to be in "the fertile phase of the menstrual cycle."Based on such assumptions, the Fertility Testor Company recently placed large advertisements in the Los Angeles Times insinuating that this technique would serve as an accurate method for contraception as well as conception,
Abarbanel AR. The New Fertility Testing Tape. JAMA. 1961;176(6):552-553. doi:10.1001/jama.1961.03040190074031