pregnancy rate


Also found in: Acronyms.

pregnancy rate

(in statistics) the ratio of pregnancies per 100 woman-years, calculated as the product of the number of pregnancies in the women observed multiplied by 12 (months), divided by the product of the number of women observed multiplied by the number of months observed. For example, if 50 women used one contraceptive method for 12 months and 5 of them became pregnant, the pregnancy rate would be 10 per 100 woman-years.
References in periodicals archive ?
During 1995 to 1997, the pregnancy rate declined by 11.
Among 18-19-year-olds, the pregnancy rate climbed 8% from the late 1980s until 1991; by 1996, the pregnancy rate had dropped to 12% below the peak level (Figure 2, page 14).
Female traits: Reproductive records, age at first calving, weight at first calving, days to first heat after calving, days to first service after calving, days open, calving interval, number of services per conception, and pregnancy rate at first service were collected and analyzed.
When patients were classified according to the surgical approach undertaken, we observed that postoperative pregnancy outcomes were not significantly different between the two groups of women; although, pregnancy rate was significantly higher in the TAM group than that in the LM group [Table 3].
Although, low-dose protocols with gonadotropins results in a higher pregnancy rate, recruitment of multiple follicles rapidly increases the serum E2 levels, which may increase the risk of a premature LH surge (PL).
Conclusion: In subfertile couples undergoing COH-IUI, r-hCG administration was associated with an increased clinical pregnancy rate compared with spontaneous serum LH surge.
The Role of Infertility Etiology in Success Rate of Intrauterine Insemination Cycles: An Evaluation of Predictive Factors for Pregnancy Rate.
5 minutes, had a beneficial effect on pregnancy rates, but the results were based on just one treatment cycle and "not on the more real-world context of multiple cycles," according to an ESHRE press release.
Nevertheless, while the unintended pregnancy rate has shown improvement, the rate in the United States still lags considerably behind that of other industrialized nations.
And in Sunderland, the teenage pregnancy rate fell by 33%.
TEENAGE pregnancy rates in Wales have fallen to record-low levels, new figures have revealed.
In 2010, the teenage pregnancy rate for African American teens was almost twice that of white teens.