המידע באדיבות מדיקונטקסט
Last Updated: 2001-07-17 11:45:26 EDT (Reuters Health)
LONDON (Reuters Health) – Sexual intercourse during late pregnancy significantly increases the risk of a preterm delivery, according to the findings of study by Greek investigators.
During a 12-month period, Dr. E. Petridou, from Athens University Medical School, and colleagues performed a case-control study of all infants born at less than 37 weeks' gestation to determine the impact of transient events, such as coitus or stress, on the risk of preterm delivery.
Women who were younger than 25 years of age or older than 29 were more likely than other women to give birth to extremely premature newborns, the researchers note in the June issue of the British Journal of Obstetrics and Gynaecology. Parity, body mass index, and smoking were all directly linked to this risk, while educational level, regular physical exercise, and serious nausea/vomiting had an inverse effect.
Of the transient events, only late-pregnancy intercourse significantly increased the risk of prematurity (p = 0.004 for very immature babies and p = 0.04 for immature babies). Physical exertion appeared to have a very modest effect on preterm delivery risk. Potentially stressful events such as illness of relatives or friends, husband's departure, and loss of employment had no bearing on the risk of preterm delivery, the authors point out.
"The mechanism through which coitus operates as a risk factor for preterm delivery should be further explored in order to identify pregnancies at increased risk," the researchers state. Until such data are available, "coitus during the last few weeks of pregnancy should be discouraged," Dr. Petridou's team concludes.
Br J Obstet Gynaecol 2001;108:598-604.
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