BACKGROUND: Prevalence estimates on suspected @entity245 (SDD) in young @entity1 are scarce and a necessary first step for planning an early intervention. We investigated the prevalence of SDD at 4, 6 and 12  months, in addition to associations of SDD with gender, prematurity and maternal education. METHODS: This study is based on a Norwegian longitudinal sample of 1555 @entity1 and their parents attending well-baby clinics for regular health check-ups. Moreover, parents completed the Norwegian translation of the Ages and Stages Questionnaires (ASQ) prior to the check-up, with a corrected gestational age being used to determine the time of administration for preterm @entity1 . Scores    <=   the established cut-offs in one or more of the five development areas: communication, gross motor, fine motor, problem solving and personal-social, which defined SDD for an @entity1 were reported. Chi-square tests were performed for associations between the selected factors and SDD. RESULTS: According to established Norwegian cut-off points, the overall prevalence of SDD in one or more areas was 7.0  % (10.3  % US cut-off) at 4  months, 5.7  % (12.3  % US cut-off) at 6  months and 6.1  % (10.3  % US cut-off) at 12  months. The highest prevalence of SDD was in the gross motor area at all three time points. A gestational age of   <   37  weeks revealed a significant association with the communication SDD at 4  months, and with the fine motor and personal social SDD at 6  months. Gender was significantly associated with the fine motor and problem solving SDD at 4  months and personal- social SDD at 6  months: as more @entity1 than @entity1 were delayed. No significant associations were found between maternal education and the five developmental areas of the ASQ. CONCLUSION: Our findings indicate prevalence rates of SDD between 5.7 and 7.0  % in Norwegian @entity1 between 4 and 12  months of age based on the Norwegian ASQ cut-off points (10.3-12.3  %, US cut-off points). During the first year of life, delay is most frequent within the gross motor area. Special attention should be paid to @entity1 born prematurely, as well as to @entity1 . Separate norms for @entity1 and @entity1 should be considered for the ASQ.

Prevalence of suspected XXXX in early infancy: results from a regional population-based longitudinal study.

@entity1 :: ('9606', 'Species') :: ['infants', 'girls', 'boys', 'infant'] @entity245 :: ('MESH:D002658', 'Disease') :: ['developmental delays']
@entity245 :: (MESH:D002658,Disease) :: ['developmental delays']
