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Women Who Quit Smoking Early In Pregnancy Reduce Risks Of Preterm Birth, Stunted Fetal Growth

Pregnant women who quit smoking during the first trimester and women who never smoked during pregnancy have a similar risk of delivering preterm or very small infants, according to a study published in the journal Obstetrics and Gynecology, Reuters reports. Premature delivery and stunted infant growth are the most well-documented side effects of smoking during pregnancy, and the risks increase for older women, according to study author Laura Polakowski of the Centers for Disease Control and Prevention and colleagues. For the study, the researchers analyzed 915,441 birth certificates for infants born in 2005 in 11 states that include information on whether the woman smoked during pregnancy.The study found that 10% of women who smoked for the entire pregnancy gave birth to "preterm but not too small for gestational age" infants, compared with 8% of women who quit during the first trimester. Fifteen percent of women who smoked the entire pregnancy gave birth to full-term infants who were small for their gestational age, while 2% gave birth to premature infants who were small for gestational age. Among women who quit smoking during the first trimester, these outcomes occurred 9% and 1% of the time, respectively.After adjusting for the women"s age, previous preterm births and other factors, the researchers found that women who quit smoking in the first trimester reduced their risk of giving birth to a preterm, normal-size infant by 31%. The risk of delivering a full-term, unusually small infant was cut by 55% and the risk for delivering a preterm, unusually small infant was reduced by 53%. The risks were also reduced for women who quit smoking during their second trimester, although less significantly. The researchers found that the risk reduction was particularly high for older women -- especially those older than age 40 -- who quit smoking during the first trimester. According to the study, the results indicate that the risk of delivering a preterm or small-for-gestational-age infant for pregnant women who quit smoking during the first trimester is "comparable to those who never smoke during pregnancy" (Reuters, 7/21).

Shanghai To Relax One-Child Policy As China Faces Aging Population, Shrinking Work Force

Nearly three decades after China implemented its one-child policy, the city of Shanghai is planning to encourage young couples to have a second child in an effort to address the country"s aging population and shrinking work force, the New York Times reports. The city"s plan is the most public effort made by the government to counteract a program that is "considered both a tremendous success and a terrible failure," the Times reports. The policy has managed to keep population growth under control but also has led to forced abortions, according to the Times.The country is not abandoning the one-child policy, which applies mostly to residents in urban areas. Rather, the government is allowing more exceptions to the rule, with Shanghai -- where about 22% of its 20 million residents are older than age 60 -- leading the effort. China as a whole faces a similar problem seen in Shanghai, the Times reports. About 8% of the country"s population was older than age 65 in 2006. That figure is expected to increase threefold by 2050 to about 322 million people, or nearly 25% of the population, according to the United Nations.In Friday"s issue of China Daily, Xie Lingli, director of the Shanghai Population and Family Planning Commission, was quoted as saying, "We advocate eligible couples to have two kids because it can help reduce the proportion of the aging people and alleviate a work force shortage in the future." City officials plan to visit homes, pass out leaflets, and offer counseling and financial incentives, the Times reports. Current exceptions to the one-child policy are in place for ethnic minorities and rural residents, who can have a second child if the first child is a girl. Couples made up of two parents who have no siblings have always been allowed to have a second child and are now being encouraged to do so (Barboza, New York Times, 7/24).