Parental and professional agreement in developmental assessment of very-low-birthweight and term infants

The aim of this prospective follow-up study was to evaluate the accuracy of a parent-completed questionnaire compared with professionally detected dev elopmental delay. Parents of 108 very-low-birthweight (VLBW) infants and pa rents of 279 term control infants completed the German version of the Revis ed Prescreening Developmental Questionnaire (R-PDQ) at the corrected age of 12 months. Simultaneously, infants underwent developmental examination usi ng the Griffiths Developmental Scale. Sixty-nine VLBW infants were classifi ed as not delayed, 16 as delayed by both methods (conegativity 76% and copo sitivity 94%), as compared to 240 and six term control infants (conegativit y 88%, copositivity 94%). The questionnaire suggested delay in 22 VLBW infa nts and 32 control infants, which was not substantiated by professional exa mination (P=0.006). In contrast, examination-diagnosed delay was missed by the questionnaire in one infant in each group. The R-PDQ is a reliable moni toring instrument for both VLBW and term infants at the age of 12 months. P arents of VLBW infants tend to underestimate their infants' development.