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The Pearl Index, also called the Pearl rate, is the most common technique used in clinical trials for reporting the effectiveness of a birth control method. It is a very approximate measure of the number of unintended pregnancies in 100 woman-years of exposure that is simple to calculate, but has a number of methodological deficiencies.
Contraceptive use among women in Sub-Saharan Africa has risen from about 5% in 1991 to about 30% in 2006. [7] However, due to extreme poverty, lack of access to birth control, and restrictive abortion laws, many women still resort to clandestine abortion providers for unintended pregnancy, resulting in about 3% obtaining unsafe abortions each year.
For example, a failure rate of 20% means that 20 of 100 women become pregnant during the first year of use. Note that the rate may go above 100% if all women, on average, become pregnant within less than a year. In the degenerated case of all women becoming pregnant instantly, the rate would be infinite.
Although, across the nine countries, more than 50% of sexually-active participants had used a condom at their last sexual encounter. Over a third used other methods of contraceptive for their last sexual intercourse. The highest rate of contraceptive-use was found in those from Namibia, and the lowest prevalence was found to be in Tanzania. The ...
5.10 Contraceptive prevalence rate. ... Download as PDF; Printable version; ... were the first to invent a form of writing in 1833 or 1834.
Crude birth rate (per 1000) Crude death rate (per 1000) Natural change (per 1000) Total fertility rate (TFR) Infant mortality (per 1000 live births) Life expectancy (in years) 1950 2 950 000 145 000 96 000 49 000 49.2 32.5 16.7 6.80 206.1 32.75 1951 3 001 000 149 000 96 000 53 000 49.6 31.8 17.8 6.81 205.8 32.81 1952
Download as PDF; Printable version; In other projects Wikimedia Commons; ... Contraceptive prevalence rate. 28.1% (2017/18) 20.4% (2013/14) Net migration rate
3.10 Contraceptive prevalence rate. 3.11 Sex ratio. 3.12 Life expectancy at birth. 3.13 HIV/AIDS. ... Download as PDF; Printable version; In other projects Wikimedia ...