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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