A clear trend was established, whereby the presence of more than two complicating stressors or factors was associated with a significantly higher rate of low birthweight: 8.6% of the infants born to mothers with no or at most one factor of low birth- weight, whereas 27.5% of the infants bom to women with two factors, and 33.3% of those bom to women with all three factors in question were found to be of low birthweight.
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