Objective: To ascertain the degree of agreement between a score for screening and another for diagnosis of motor development in 6-month old infants and to define the most appropriate cutoff point for screening.Methods: A sectional study, enrolling asymptomatic full term newborns with gestational ages from 37 to 41 weeks, who were discharged from the maternity unit 2 days after birth and are resident in the Campinas area. Infants were excluded if they presented genetic syndromes, malformations, congenital infections, intensive care admission or low birth weight. The assessment instruments investigated were the Alberta Infant Motor Scale (AIMS) and the Bayley Scales of Infant Development II (BSID-II). Two cutoff points were evaluated for the AIMS, the 5th and 10th percentiles, and for the BSID-II infants were classified according to its motor index score (IS) as having inadequate (IS < 85, at least 1 standard deviation below the mean) or adequate performance (IS ≥ 85, above the mean minus 1 standard deviation).Results: The study sample comprised 43 infants. Six infants (14.00%) exhibited inadequate motor performance. Using the BSID-II motor classification and the 5th percentile AIMS cutoff, sensitivity was 100%, specificity 78.37%, accuracy 81.39%, kappa index 0.50 and p < 0.001; whereas, using the BSID-II motor classification and the 10th percentile AIMS cutoff, sensitivity was 100%, specificity 48.64%, accuracy 55.81%, kappa index 0.20 and p 0.025. Conclusions:The results suggest that concordance between the two 6-month assessment scales is good. The parameters employed are best combined using the 5th percentile AIMS cutoff point. ResumoObjetivo: Verificar o grau de concordância entre uma escala de triagem e uma de diagnóstico do desenvolvimento motor de lactentes no sexto mês de vida, estabelecendo o ponto de corte mais apropriado para triagem.Métodos: Estudo seccional, incluindo recém-nascidos a termo, com idade gestacional entre 37 e 41 semanas, assintomáticos, que receberam alta da maternidade 2 dias após o nascimento, residentes na região de Campinas. Foram excluídas síndromes genéticas, malformações, infecções congênitas, internações em unidade de terapia intensiva e baixo peso ao nascimento. Os instrumentos de avaliação foram: Alberta Infant Motor Scale (AIMS) e Bayley Scales of Infant Development II (BSID-II). Para a AIMS, foram utilizados dois pontos de corte, percentil 5 ou 10 e, para as BSID-II, foi utilizada a classificação dos lactentes na escala motora conforme a pontuação do index score (IS): desempenho inadequado (IS < 85, abaixo de menos 1 desvio padrão da média) ou desempenho adequado (IS ≥ 85, maior ou igual a menos 1 desvio padrão da média).Resultados: A amostra foi constituída por 43 lactentes. Seis lactentes (14,00%) apresentaram desempenho motor inadequado. Considerando a classificação motora das BSID-II e o percentil 5 da AIMS, obteve-se sensibilidade = 100%, especificidade = 78,37%, acurácia = 81,39%, índice kappa = 0,50 e p < 0,001; considerando a classificação motora das BSID-...

This study suggests that during the first year, development can be synchronous in the 2 areas evaluated by the Bayley Scales of Infant Development II, especially from the sixth month of age onward.

Objective: To ascertain the degree of agreement between a score for screening and another for diagnosis of motor development in 6-month old infants and to define the most appropriate cutoff point for screening.Methods: A sectional study, enrolling asymptomatic full term newborns with gestational ages from 37 to 41 weeks, who were discharged from the maternity unit 2 days after birth and are resident in the Campinas area. Infants were excluded if they presented genetic syndromes, malformations, congenital infections, intensive care admission or low birth weight. The assessment instruments investigated were the Alberta Infant Motor Scale (AIMS) and the Bayley Scales of Infant Development II (BSID-II). Two cutoff points were evaluated for the AIMS, the 5th and 10th percentiles, and for the BSID-II infants were classified according to its motor index score (IS) as having inadequate (IS < 85, at least 1 standard deviation below the mean) or adequate performance (IS ≥ 85, above the mean minus 1 standard deviation).Results: The study sample comprised 43 infants. Six infants (14.00%) exhibited inadequate motor performance. Using the BSID-II motor classification and the 5th percentile AIMS cutoff, sensitivity was 100%, specificity 78.37%, accuracy 81.39%, kappa index 0.50 and p < 0.001; whereas, using the BSID-II motor classification and the 10th percentile AIMS cutoff, sensitivity was 100%, specificity 48.64%, accuracy 55.81%, kappa index 0.20 and p 0.025. Conclusions:The results suggest that concordance between the two 6-month assessment scales is good. The parameters employed are best combined using the 5th percentile AIMS cutoff point.J Pediatr (Rio J). 2006;82(6):470-4: Screening and classification, diagnosis, infant, child development, motor activity.

Objective To assess the neurodevelopmental functions of survivors of twin-twin transfusion syndrome (TTTS) treated by fetoscopic laser coagulation (FLC), during the first year of life, comparing them to a control group; and to verify the influence of specific variables on neurodevelopment. Method This was a prospective, longitudinal study. The sample comprised 33 monochorionic diamniotic twins who underwent FLC for treatment of TTTS and 22 full-term infants of single-fetus pregnancies. Bayley Scales of Infant and Toddler Development Screening Test were used for evaluation. Prenatal, perinatal and postnatal information were obtained. Results There was an increased frequency of infants in the TTTS group with inadequate performance compared to the control group. The identified variables (fetal donor, low economic income and cardiorespiratory disease) negatively impacted expressive communication and fine motor skills. Conclusion Although through follow-up is recommended in all TTTS survivors, particular attention is required for the high-risk group as defined in this study.