Abstract
THE DEVELOPMENT of 58 preterm infants classified as low‐risk was compared over their first 7 years with a control group of 100 full‐term healthy infants. One major conclusion from this ongoing study is the critical need to take account of age when outcomes for prematurely born children are compared with full‐term children. As well as finding “catch up” phenomena at certain ages, the study also found periods during which there were reverses of this favourable tendency. Further, the study provided evidence that perinatal risk conditions may have a differential impact on mental development, depending on social‐environmental factors. It was suggested that advantaged family circumstances may reduce or even fully compensate for the adverse effects of preterm birth whereas a disadvantaged environment may amplify them.