The more miscarriages or abortions a woman has, the greater are her chances of giving birth to a c

The more miscarriages or abortions a woman has, the greater are her chances of giving birth to a child is underweight or premature in the future, the research shows. Low birth weight （under 2500 g） and　 31 　birth （less than 37weeks） are two of the major contributors　 32 　deaths　 33 　newborn babies and infants. Rates of low　 34 　and premature birth were highest among mothers who were black, young or old, poorly　 35 　, and unmarried. But there was a strong association　 36 　 miscarriage and abortion and an early or underweight birth, even　 37 　adjusting for other influential factors, such as smoking, high blood pressure and heavy drinking. Women who had　 38 　one, two, or three or more miscarriages or　 39 　in the past were almost three, five, and nine times as likely to give birth to an underweight child as those without previous　 40 　or abortions.

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