following lives from birth and through the adult years www.cls.ioe.ac.uk SDQ Total Difficuties Score (SDQ) CoeffientStandard Error Mother s age at ( first) birth 20-24-0.060.06 25-29-0.220.06*** 30-34-0.220.06*** 35-39-0.260.07*** 40+-0.120.15
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