what country has the highest twin birth rate

Countries With Most Twins Identified

Oct 11, †Ј Central Africa snags the record for the highest twin birthrate, while Asia and Latin America have much lower rates of twinning, according to a . Mar 12, †Ј There has also been population growth in Africa, which has long had a relatively high rate of fraternal twin births. For instance in the s, the twin birth rate in sub-Saharan Africa was about.

What causes car to vibrate when applying brakes it girth to having twins, not all regions are created equal. Central Africa snags the record for the highest twin birthrate, while Asia and Latin America have much lower rates of twinning, according to a new international study and global twins database.

The central African country of Benin has the highest national average of twinning, with a whopping The findings may help answer questions about the causes of twinning, which may range from a mother's age, height and diet to genetic factors that are passed down through the maternal line, as well as mortality differences between boys and girls in certain regions.

Twins have long fascinated the world, even making their way into myth and religion, from Castor and Pollux, the brothers from Greek mythology and basis for the constellation Gemini, to the epic tales of the Hero Twins in the sacred ancient Mayan book known as "Popol Vuh. Until now, scientists had a very incomplete picture of the number of twins around the world. Reliable national information on twinning was only available from highly developed countries what country has the highest twin birth rate good birth registrations.

Data from less developed regions were often weak or lacking all together. Now scientists have created twins databases for 76 developing countries, the most comprehensive yet for the developing world. This includes data on approximately 2. Of the developing nations studied, This is comparable with how to play flute for beginners pdf rates seen in the United StatesAustralia and many European countries of nine to 16 per 1, births.

The highest twinning rates were seen in Central Africa, with more than 18 twins per 1, births. The especially high twinning seen in Benin might be linked what country has the highest twin birth rate the What is the capital city of dubai ethnic group, which can be found in Benin as well as in Nigeria and Togosaid researcher Jeroen Smits, a ahs and economist at Radboud University Nijmegen in the Netherlands.

In comparison, twinning is very low in Asia and Latin America, with a rate often less than eight per 1, births. The major exception are the Caribbean Islands, where many people of African descent live Ч for instance, Haiti had 14 twins per 1, births. It remains a mystery as to why there are vast differences in twin birth rates among the different regions of the developing world.

Past research suggests that identical twins occur at a relatively constant rate of 3. Instead, most variations in twinning worldwide seem due to birth rates of fraternal twins. A key factor linked with fraternal twinning is a mother's age Ч the number of twin pregnancies rises substantially with maternal age and then decreases after age The number of pregnancies a woman had before a twin pregnancy also appears to play a role, as might details such as smoking, contraceptive use and even a woman's height Ч the taller you are, the greater your chances seem to be of giving birth to countfy twins.

In addition, there is a substantial hereditary component to fraternal twinning that apparently runs through the female line. The new twins database offers many opportunities countrh further research into why twinning varies worldwide, especially by focusing on differences among regions and ethnic groups in central Africa, Smits said.

Prior studies have shown twinning rates can vary considerably over time in developed nations. For instance, in the United States, Australia and many European countries, they decreased from about 12 or higher per 1, births in the s to fewer than 10 per 1, births in the s and hghest increased again cokntry values of 13 to 16 in about The initial decline how to tame a hamster recent increase may partly have been due to a decrease and increase in the age at which women had their children, respectively, although this modern rise might also be due to recent fertility tate.

However, this new research on the developing world did not show any large changes either up or down. The researchers cautioned their data was based on live births. Since twins are susceptible to higher mortality rates during pregnancy and birth, the actual number of twins could be somewhat higher. This data is part of research on inequality between girls and boys in developing countries in terms of education, infant mortalityhealth and related factors, for which the scientists have gathered demographic, socioeconomic and health data on millions of households in more than countries.

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May 14, †Ј Research conducted by scientists from Radboud University and Oxford University found that Africa is home to the worldТs highest rate of twin-births among regions in the developing world, with about 18 sets of twins per births. By comparison, Latin America and Southeast Asia record less than 10 sets of twins per births. A comparison of data from Demographic and Health Surveys of 75 developing countries collected between 19revealed that Benin had the highest national twinning rate of 27 sets of twins. Oct 05, †Ј A comparison of data from Demographic and Health Surveys of 75 developing countries collected between 19revealed that Benin had the highest national twinning rate of 27 sets of twins per 1, births while Nigeria had a rate of 19 sets of twins per 1, births.

When it comes to having twins, not all regions are created equal. Central Africa snags the record for the highest twin birthrate, while Asia and Latin America have much lower rates of twinning, according to a new international study and global twins database. The central African country of Benin has the highest national average of twinning, with a whopping The findings may help answer questions about the causes of twinning, which may range from a mother's age, height and diet to genetic factors that are passed down through the maternal line, as well as mortality differences between boys and girls in certain regions.

Twins have long fascinated the world, even making their way into myth and religion, from Castor and Pollux, the brothers from Greek mythology and basis for the constellation Gemini, to the epic tales of the Hero Twins in the sacred ancient Mayan book known as "Popol Vuh. Until now, scientists had a very incomplete picture of the number of twins around the world.

Reliable national information on twinning was only available from highly developed countries with good birth registrations. Data from less developed regions were often weak or lacking all together. Now scientists have created twins databases for 76 developing countries, the most comprehensive yet for the developing world. This includes data on approximately 2. Of the developing nations studied, This is comparable with intermediate rates seen in the United States, Australia and many European countries of nine to 16 per 1, births.

The highest twinning rates were seen in Central Africa, with more than 18 twins per 1, births. The especially high twinning seen in Benin might be linked to the Yoruba ethnic group, which can be found in Benin as well as in Nigeria and Togo, said researcher Jeroen Smits, a sociologist and economist at Radboud University Nijmegen in the Netherlands.

In comparison, twinning is very low in Asia and Latin America, with a rate often less than eight per 1, births. The major exception are the Caribbean Islands, where many people of African descent live Ч for instance, Haiti had 14 twins per 1, births.

It remains a mystery as to why there are vast differences in twin birth rates among the different regions of the developing world. Past research suggests that identical twins occur at a relatively constant rate of 3. Instead, most variations in twinning worldwide seem due to birth rates of fraternal twins. A key factor linked with fraternal twinning is a mother's age Ч the number of twin pregnancies rises substantially with maternal age and then decreases after age The number of pregnancies a woman had before a twin pregnancy also appears to play a role, as might details such as smoking, contraceptive use and even a woman's height Ч the taller you are, the greater your chances seem to be of giving birth to fraternal twins.

In addition, there is a substantial hereditary component to fraternal twinning that apparently runs through the female line. The new twins database offers many opportunities for further research into why twinning varies worldwide, especially by focusing on differences among regions and ethnic groups in central Africa, Smits said.

Prior studies have shown twinning rates can vary considerably over time in developed nations. For instance, in the United States, Australia and many European countries, they decreased from about 12 or higher per 1, births in the s to fewer than 10 per 1, births in the s and then increased again to values of 13 to 16 in about The initial decline and recent increase may partly have been due to a decrease and increase in the age at which women had their children, respectively, although this modern rise might also be due to recent fertility technologies.

However, this new research on the developing world did not show any large changes either up or down. The researchers cautioned their data was based on live births. Since twins are susceptible to higher mortality rates during pregnancy and birth, the actual number of twins could be somewhat higher. This data is part of research on inequality between girls and boys in developing countries in terms of education, infant mortality , health and related factors, for which the scientists have gathered demographic, socioeconomic and health data on millions of households in more than countries.

Smits and his colleague sociologist Christiaan Monden detailed their findings online Sept. Live Science. Please deactivate your ad blocker in order to see our subscription offer.