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Long, stressful commutes harmful for pregnant women
03 April 2019 IST
Long, stressful commutes harmful for pregnant women

An analysis of data gleaned from 2014 and 2015 New Jersey birth records, revealed that for pregnant women who commute at least 50 miles to work, each ten miles of travel distance increased the probability of having a low birth weight baby by nearly one percentage point (0.9) or 14%, compared to the national average.

 
 

Pregnant women who commute long-distance to work have an increased risk of adverse birth outcomes, including having babies born at a low-birth-weight, a recent study suggests.
 
An analysis of data gleaned from 2014 and 2015 New Jersey birth records, revealed that for pregnant women who commute at least 50 miles to work, each ten miles of travel distance increased the probability of having a low birth weight baby by nearly one percentage point (0.9) or 14%, compared to the national average. In other words, the longer the long-distance commute, the higher the risk for giving birth to a low birth weight infant (Low birth weight is defined as under 2,500 grams or about 5.5 pounds).
 
For every ten miles or travel distance added to a long commute, the probability of having intrauterine growth restriction increased by 0.6 percentage points or 43%, compared to the average rate among pregnant women living within 10 miles of their workplaces.
 
The researchers attribute the higher risk of adverse birth outcomes to an increase in chronic maternal stress induced by a long commute. They also found that long-commutes during pregnancy were associated with under-use of prenatal care, possibly due to less “leisure time” that could be allocated to prenatal visits.
 
“The finding that low birth weight might be associated with a source of stress like long-distance commuting is somewhat expected since chronic strain has been found to be linked to adverse birth outcomes. However, it was surprising to find an association with under-use of prenatal care among pregnant women commuting long-distance,” said Muzhe Yang, co-author of the study published in the Journal of Economics and Human Biology.
 
The researchers found that long commutes during pregnancy were associated with a reduced number of prenatal visits, reduced likelihood of completing the first checkup within the first trimester of pregnancy, and an increased likelihood of delaying the first checkup to the third trimester or not having any prenatal visit at all.
 
Among the long-distance commuters that were studied, an increase of 10 miles in travel distance was associated with a 2.5% reduction in the number of prenatal visits and a 2.84% decrease in the probability that the mother completes her first prenatal visit in the first trimester. Their findings are consistent with previous research that found that missing a prenatal visit early in the pregnancy, rather than later, has the most impact on negative birth outcomes.
 
In the sample used in the study, the average travel distance between a pregnant woman’s home and her workplace was about 64 miles and the associated travel time by car was about 78 minutes. The average number of prenatal visits was about 11 times, while the range of the typical average number of prenatal visits for most pregnant women is between 10 and 15. Approximately 15% did not have their first prenatal checkup during the first trimester.
 
The authors suggest that one possible way to break the self-reinforcing mechanism behind the under-use of prenatal care by this subset of women in greater need is to reduce the opportunity cost of time spent on scheduling prenatal visits among pregnant women who are long commuters.

 
 

This solution, they write, has important implications for public policy proposals regarding family or maternity leave, which could potentially facilitate the greater use of prenatal care among pregnant women who are long commuters.

“Our study could impact public policy proposals that consider expanding maternity leave to cover the prenatal period,” said Wang.
 
“The findings highlight a subpopulation of pregnant women who are likely in greater need of prenatal maternity leave to facilitate prenatal visits. Having the needed time off during the prenatal period can be particularly important for pregnant women who are long commuters,” added Yang.
 
The authors cite previous research on the long-lasting impacts of maternal stress which demonstrated that maternal stress endured during pregnancy can negatively affect a wide range of outcomes in children including on cognition, health, and educational attainment.

 
 
 
 
 

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Shibu Chandran
2 hours ago

Serving political interests in another person's illness is the lowest form of human value. A 70+ y old lady has cancer.

November 28, 2016 05:00 IST
Shibu Chandran
2 hours ago

Serving political interests in another person's illness is the lowest form of human value. A 70+ y old lady has cancer.

November 28, 2016 05:00 IST
Shibu Chandran
2 hours ago

Serving political interests in another person's illness is the lowest form of human value. A 70+ y old lady has cancer.

November 28, 2016 05:00 IST
Shibu Chandran
2 hours ago

Serving political interests in another person's illness is the lowest form of human value. A 70+ y old lady has cancer.

November 28, 2016 05:00 IST


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