{"id":203009,"date":"2021-03-15T23:42:34","date_gmt":"2021-03-15T20:42:34","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/ivf-means-more-being-born-now-than-ever-before-scientists\/"},"modified":"2021-03-15T23:42:34","modified_gmt":"2021-03-15T20:42:34","slug":"ivf-means-more-being-born-now-than-ever-before-scientists","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/ivf-means-more-being-born-now-than-ever-before-scientists\/","title":{"rendered":"#IVF means more being born now than ever before: scientists"},"content":{"rendered":"

“#IVF means more being born now than ever before: scientists<\/strong>”<\/p>\n

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LONDON \u2013 More twins are being born now than ever before, largely due to rising use of in vitro fertilization (IVF) and other assisted reproduction techniques, the first global study of human twinning has found.<\/p>\n

With about 1.6 million twins born each year worldwide, the global twinning rate has risen by a third since the 1980s, to 12 per 1,000 deliveries from 9 per 1,000 around 30 years ago, the study found.<\/p>\n

This might well be \u201cpeak twins\u201d, scientists behind the research said \u2013 particularly in high-income regions such as Europe and North America where there is now an emphasis on refining fertility treatments to minimise multiple births.<\/p>\n

\u201cWe think we\u2019re actually at the peak,\u201d said Christiaan Monden, a professor at Britain\u2019s Oxford University who co-led the review. \u201cThis is likely to be an all-time high. The relative and absolute numbers of twins in the world are higher than they have ever been since the mid-twentieth century.\u201d<\/p>\n

Monden\u2019s research team, whose findings were published on Friday in the journal Human Reproduction, analysed data on twinning rates for 165 countries between 2010 and 2015 and for 112 countries for the period 1980 to 1985.<\/p>\n

They found a 71% rise in twinning rates in North America, as well as significant rises in many European countries and in Asia. For Asia overall, there was a 32% increase, they said, and only seven countries saw falls of more than 10% in twinning rates over the study period.<\/p>\n

\"A
A woman wearing a protective face mask pushes a baby stroller, amid the spread of the coronavirus disease (COVID-19), at Gentry Plaza State Park in the Queens borough of New York, U.S., March 1, 2021.<\/figcaption>
Reuters<\/span><\/figcaption><\/figure>\n

The researchers noted that rates of monozygotic or identical twins \u2013 born from the same egg \u2013 were barely changed, stable at about 4 per 1,000 deliveries worldwide.<\/p>\n

This meant the vast majority of the increase in twinning rates was due to high numbers of dizygotic or non-identical twins \u2013 twins born from separate eggs.<\/p>\n

This was especially true in Africa, Monden said, and is most likely to be due to genetic differences between African populations and other populations.<\/p>\n

\u201cMost twins you\u2019ll meet in Japan are identical twins,\u201d he said, \u201cwhile most twins you\u2019ll meet in Africa are non-identical \u2013 and we think that\u2019s genetic.\u201d<\/p>\n

While factors such as women choosing to start families later, greater use of contraception, and lower fertility rates might be playing some part in the increase in twinning rates, Monden said medically assisted reproduction techniques \u2013 which began in the 1970s \u2013 are the main drivers.<\/p>\n

Such fertility treatments were originally available in wealthier regions, but spread to emerging economies in Asia and Latin America in the 1980s and 1990s, reaching the relatively richer parts of South Asia and Africa after 2000.\n <\/p><\/div>\n

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Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

“#IVF means more being born now than ever before: scientists” LONDON \u2013 More twins are being born now than ever before, largely due to rising use of in vitro fertilization (IVF) and other assisted reproduction techniques, the first global study of human twinning has found. With about 1.6 million twins born each year worldwide, the…<\/p>\n","protected":false},"author":1,"featured_media":203010,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/nypost.com\/wp-content\/uploads\/sites\/2\/2021\/03\/Gentry-feature.jpg?quality=90&strip=all&w=1200","fifu_image_alt":"","footnotes":""},"categories":[70897],"tags":[97778,70477,71955,77192,9724],"class_list":["post-203009","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-3-15-21","tag-childbirth","tag-ivf","tag-oxford-university","tag-study-says"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/203009","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=203009"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/203009\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/203010"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=203009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=203009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=203009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}