Obesity ups risk of preterm birth
Washington: Women who are overweight or obese are more likely to have preterm delivery, according to a new Swedish study.
Those with the highest Body Mass Index (BMI) also had the highest statistical risk of giving preterm birth - and especially extremely preterm birth.
"For the individual woman who is overweight or obese, the risk of an extremely preterm delivery is still small. However, these finding are important from a population perspective. Preterm infants and, above all, extremely preterm infants account for a substantial fraction of infant mortality and morbidity in high income countries," said Dr. Sven Cnattingius, Professor at Karolinska Institutet in Sweden, who led the study.
In the study, Dr. Cnattingius and colleagues at Karolinska Institutet and the University of Michigan, U.S., used information from 1.5 million singleton deliveries included in the population-based Swedish Medical Birth Register from 1992 through 2010.
Compared to women of normal weight, overweight women had a 25 percent increased risk of extremely preterm delivery. Women with mild obesity had a 60 percent increased risk of giving birth extremely preterm. For women with severe obesity (BMI 35-39.9) or extreme obesity (BMI 40 or more) the corresponding risk was doubled and tripled, respectively.
Risks of very and moderately preterm deliveries also increased with BMI.
Overweight and obesity also increase the risk of maternal pregnancy complications, including preeclampsia, gestational diabetes, and Cesarean delivery, said Dr. Cnattingius.
Infection and inflammation are considered main risk factors for spontaneous extremely preterm delivery with a spontaneous onset, and maternal obesity is associated with increased production of inflammatory proteins. The researchers hypothesize that the increased inflammatory state in obese women may make them more susceptible to infections, which may increase their risk of spontaneous extremely preterm delivery.
The study published in Journal of the American Medical Association (JAMA).
More from India
More from World
More from Sports
More from Entertaiment
- I eat beef, can somebody stop me?: Kiren Rijiju hits back at Naqvi
- Zee Media's mega survey on Modi govt
- Delhi: Visually impaired boy scores 91.4% in CBSE 12th Board exams
- MP: 14-year-old boy works as bonded labour since 2009
- UP: Man chops off wife's nose, hair for dowry
- Zee Media Exclusive: The plight of yoga expert Tejaswi Sharma
- Woman denied flat in Mumbai for being a Muslim
- 4 Indians in Forbes' 100 most powerful women list
- BBV: What challenges lie ahead of Modi govt?
- Gujjar stir: HC asks Rajasthan govt to clear rail track, roads
- DNA analysis of rising water crisis in India!
- DNA: Delhi shop owners express their plight through Zee initiative 'My News'
- Watch: Zee Media mega survey on Modi govt- Part 2
- Gujjar stir: HC asks Rajasthan govt to clear rail track, roads- Part II
- Heatwave continues in India, death toll climbs to over 1,400
- CBSE Class 10 Board Result 2015 to be announced today
- CBSE Class 10 Board Result 2015 (cbse.nic.in, cbseresults.nic.in) postponed?
- Check mahresult.nic.in for MSBSHSE Maharashtra Class 12 HSC Result 2015
- Maharashtra MSBSHSE HSC Result 2015 on mahresult.nic.in
- I was misquoted, says Kiren Rijiju on 'beef' remark
- First look: Salman Khan steals thunder in `Bajrangi Bhaijaan`
- mahresult.nic.in updated with MSBSHSE Maharashtra HSC Class XII Result 2015
- Manmohan Singh defends himself on 2G charge, slams Modi govt for 'carbon copy' schemes
- Sonia Gandhi 'unconstitutional authority' during UPA: PM Narendra Modi
- Check cbse.nic.in, cbseresults.nic.in for CBSE Class 10 Result 2015
- Hours after attacking NDA govt, Manmohan Singh meets PM Narendra Modi
- Reservation stir: Five percent job quota to Gujjars unlikely, hints Rajasthan govt
- PMO website revamped, now send e-mail to PM Modi directly
- First look: Aamir Khan joins Shah Rukh to promote Salman's ‘Bajrangi Bhaijaan’
- Death toll climbs to over 1400 as intense heatwave continues in India