Use of the Bayley Scales of Infant and Toddler Development, Third Edition, to Assess Developmental Outcome in Infants and Young Children in an Urban Setting in South Africa (original) (raw)
Related papers
BMJ Paediatrics Open
Objectives The study aimed to compare the developmental outcome of very low birth weight infants with a group of normal-term controls in a tertiary hospital in sub-Saharan Africa. Design A group of 105 very low birth weight infants were assessed at a mean age of 17.6 months (95% CI 16.7 to 18.6) using the Bayley Scales of Infant Development, Third Edition, and compared with a group of normal-term controls at the same mean age. results Seven of the study infants (7%) had developmental delay (a score below 70), compared with none in the control group (p=0.04). Three of the seven study infants were delayed on all three subscales, one of whom had cerebral palsy. A further 34% of the study infants were 'at risk' of developmental delay (a score below 85). There was no difference in the mean composite score between the study group and controls for the cognitive (p=0.56), motor (p=0.57) or language (p=0.66) subscales. There was no difference in mean composite scores on all subscales between infants who were appropriate for gestational age and those who were small for gestational age. Cognitive and motor scores remained stable in paired assessments of study infants before and after 1 year of age; language scores decreased significantly (p<0.001). Mechanical ventilation was the only risk factor significantly associated with a cognitive score below 85 in study infants. conclusion Very low birth weight infants in sub-Saharan Africa are at risk of developmental delay and require longterm neurodevelopmental follow-up.
PLOS Global Public Health
Using data from a rural cohort in Pakistan (N = 1298), the study examined the predictive validity of the Bayley Scales of Infant and Toddler Development (BSID) 3rd edition on later tests of general abilities. The BSID III subscales (cognitive, language and motor) were administered at 2 years; general ability was assessed using the Verbal, Performance and Full-Scale score from the Wechsler Preschool and Primary Scale of Intelligence (WPPSI) III at 4 years, and the Fluid Reasoning Index (FRI) from the Wechsler Intelligence Scale for Children (WISC) V at 8 years. The combined BSID subscales explained 15% of the variation of the WPPSI III full scale, 16% of the Verbal scale, 7% of the Performance scale and 1% of the FRI. BSID III scores at 24 months should be used with caution to predict future intellectual abilities.
Early Human Development
Background: The Dutch translation of Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III-NL) is a comprehensive tool assessing cognitive, language and motor development in children up to 42 months. Aims: The first aim of this study was to evaluate concurrent validity of the Bayley-III-NL Gross Motor Scale (GMS) in relation to the Alberta Infant Motor Scale (AIMS). Secondly, divergent validity between the other subscales mutually and the AIMS was investigated. Finally, the importance of population-specific reference values was examined. Methods and procedures: A sample of 122 healthy, typically developing Flemish children (mean age: 9 months 7 days), born full term was assessed with the Bayley-III-NL and the AIMS. Outcomes and results: Concurrent validity of the Bayley-III-NL GMS and the AIMS was moderate to high (0.59-0.98; p < 0.001). In addition, weak correlations (−0.10-0.27) between the non-motor-Bayley-III-NL subscales and the AIMS were found. Finally, significant differences were found between Bayley-III scores based on Flemish and American norms (p < 0.001), except for fine motor skills (p = 0.11). Conclusions and Implications: This study provides support for the concurrent validity of the Bayley-III-NL GMS and divergent validity of the different Bayley-III-NL subscales. Secondly, population-specific reference values should be used to avoid over-and under estimation of infant's development.
SAJCH : the South African journal of child health, 2010
BACKGROUND: The Griffiths Mental Development Scales (GMDS) have not been standardised in South African children Neurodevelopmental scores of infants from deprived environments decline with age, but there is no evidence on how young South African children from such backgrounds perform on serial assessments. AIM: To describe the longitudinal developmental profile of infants from low socio-economic backgrounds at Tygerberg Children's Hospital by comparing the GMDS scores performed at 10 - 12 months and 20 - 22 months. METHODS: Infants born to HIV-uninfected women attending the public service programme were recruited from a vaccine study in Cape Town, South Africa. The GMDS 0 - 2 years and a neurological examination were performed between 10 and 12 months and between 20 and 22 months. RESULTS: Thirty-one infants (14 girls, 17 boys) were assessed. Their mean (standard deviation (SD)) age was 11.6 (0.8) months and 21.0 (0.5) months at the first and second assessments, respectively. Th...
South African Journal of Child Health, 2010
Background. The Griffiths Mental Development Scales (GMDS) have not been standardised in South African children. Neurodevelopmental scores of infants from deprived environments decline with age, but there is no evidence on how young South African children from such backgrounds perform on serial assessments. To describe the longitudinal developmental profile of infants from low socio-economic backgrounds at Tygerberg Children's Hospital by comparing the GMDS scores performed at 10 -12 months and 20 -22 months. Infants born to HIV-uninfected women attending the public service programme were recruited from a vaccine study in Cape Town, South Africa. The GMDS 0 -2 years and a neurological examination were performed between 10 and 12 months and between 20 and 22 months. Results. Thirty-one infants (14 girls, 17 boys) were assessed. Their mean (standard deviation (SD)) age was 11.6 (0.8) months and 21.0 (0.5) months at the first and second assessments, respectively. The mean (SD) general quotient decreased significantly from 107.3 (11.7) to 95.0 (11.0) (p<0.001). All sub-quotients decreased significantly except for locomotor. The hearing and language sub-quotient was most affected, with a decrease in mean quotients from 113.0 to 93.2 (p<0.001). There was no evidence of intercurrent events to explain the decline. Interpretation. Scores on the GMDS of this group of children from low socio-economic backgrounds were normal at 11 months and, other than locomotor, decreased significantly at 21 months, with language the most affected. Further research is needed to determine the specific reasons for the decline.
Acta paediatrica (Oslo, Norway : 1992), 2013
AimSub-Saharan Africa bears a disproportionate amount of global diseases related to neurodevelopmental delays in infancy, including malnutrition, malaria and HIV. Evaluating interventions to prevent such delays requires developmental assessment tools appropriate for Sub-Saharan Africa. This study aimed to develop and evaluate such a tool.Sub-Saharan Africa bears a disproportionate amount of global diseases related to neurodevelopmental delays in infancy, including malnutrition, malaria and HIV. Evaluating interventions to prevent such delays requires developmental assessment tools appropriate for Sub-Saharan Africa. This study aimed to develop and evaluate such a tool.MethodsThe Developmental Milestones Checklist (DMC) was developed in Kenya to provide motor, language and personal-social scores for children aged from 3 to 24 months. We developed an extended version (DMC-II) in Burkina Faso, West Africa, and then evaluated the reliability and sensitivity of the scores to age and nutritional and environmental measures.The Developmental Milestones Checklist (DMC) was developed in Kenya to provide motor, language and personal-social scores for children aged from 3 to 24 months. We developed an extended version (DMC-II) in Burkina Faso, West Africa, and then evaluated the reliability and sensitivity of the scores to age and nutritional and environmental measures.ResultsThe internal, interinterviewer and test–retest reliability of the DMC-II scores were >0.7. In 214 children aged 11.6–25.4 months, each score correlated with age (rs > 0.7). In 1123 children aged 16.8–19.9 months, the scores were sensitive to stunting, wasting and underweight (effect sizes 0.31–0.87 SD). The scores also showed expected correlations with measures of play materials in the home and activities with caregivers (rs = 0.13–0.41).The internal, interinterviewer and test–retest reliability of the DMC-II scores were >0.7. In 214 children aged 11.6–25.4 months, each score correlated with age (rs > 0.7). In 1123 children aged 16.8–19.9 months, the scores were sensitive to stunting, wasting and underweight (effect sizes 0.31–0.87 SD). The scores also showed expected correlations with measures of play materials in the home and activities with caregivers (rs = 0.13–0.41).ConclusionThe DMC-II is easily used by trained fieldworkers with no previous experience in developmental assessment. It is a practical, reliable and sensitive tool for evaluating motor, language and personal-social development in different contexts in Sub-Saharan Africa.The DMC-II is easily used by trained fieldworkers with no previous experience in developmental assessment. It is a practical, reliable and sensitive tool for evaluating motor, language and personal-social development in different contexts in Sub-Saharan Africa.
BMC pediatrics, 2017
There is a growing global acknowledgement that improving child survival rates is no longer sufficient. Emphasis is shifting to the improvement of health and developmental trajectories in early childhood. Screening and measurement of these trajectories in low and middle income countries is difficult, however, as they currently rely on developmental tests standardised among populations of children growing up in resource rich environments. This paper presents a comparison of one such tool adapted for use with children living in Southern Africa to children from the United States, Norway, Korea and Spain. The Ages and Stages Questionnaire version 3 (ASQ-3) was adapted and administered to 853 children living in South Africa and Zambia. Children in southern Africa were found to perform significantly better than children from other countries early in life, especially in the domains of communication, gross motor and fine motor skills. By the age of five, children in southern Africa were perf...
PLOS ONE, 2021
Background Developmental assessment is an important facility for early detection and intervention of developmental delay in children. Objective: to assess the performance of a sample of middle social class Egyptian infants and toddlers on Bayley Scales of Infant and Toddler Development-third edition (Bayley III), and to compare their cognitive, motor, and communication scores with that of the reference norms. Methods It was a cross-sectional pilot study, included 270 children aged 18–42 months. Mothers filled a questionnaire including questions about family socioeconomic background, perinatal history, and family history. Physical examination and growth assessment of children were performed. Developmental assessment of cognitive, language and motor skills was performed using the Bayley III scales and compared the American norm scores with the Egyptian mean scores. Results The mean cognitive, language and motor composite scores were 92.5+18.5, 91.76+ 15.6, and 95.67+18.9 respectively....
Child: Care, Health and Development, 2009
Background This study assessed the concurrent validity of the Ages and Stages Questionnaire (ASQ) compared with Bayley Scales of Infant Development II (BSID II) amongst children aged 24 months. Methods Data were collected from 53 infants and mothers who participated in the New York State Angler Cohort Child Development Study. Parents completed the 24-month ASQ to assess communication, personal-social, problem-solving ability, and fine and gross motor control. The BSID II was administered by a clinical psychologist at the 24-month home visit for cognitive and psychomotor assessment. The ASQ was scored using age-specific norms of <2 SDs below any domain mean to define failure. A BSID II score of <85 indicated mild or severe delay, while a score of <70 suggested a severe delay.
The Italian Journal of Pediatrics/Italian journal of pediatrics, 2024
Background Child development is shaped throughout the first years of life through the interaction of genetics and the environment. Bayley-III is valuably used to determine early developmental delay (DD). The aim of this study was to detect the differences in performance of a sample of apparently healthy Egyptian infants and toddlers on the Bayley-III scales in relation to their age and gender. Methods This was a cross-sectional study. Bayley scales were applied to 270 of the 300 recruited children following the inclusion criteria; to avoid potential risk factors affecting development. Assessment included cognitive, language and motor skills. Engaged children aged 18-42 months were divided into 4 age groups with six-month intervals. Approximately 78.4%, 76.2%, and 72% of the participants had average and above average scores in the cognitive, motor, and language domains, respectively. The language domain was characteristically impacted. The oldest age group (36-42 months) scored the highest means composite scores, while the 2nd group aged 24 -<30 months, scored the lowest means in the three evaluated domains. In general, girls had non-significantly higher composite scores than boys, with a small effect size (d = 0.2-0.4). In the language domain, girls aged 30 to < 36 months scored significantly higher composite scores than boys (p < 0.05), with a medium effect size (d = 0.73). The study indicates that the performance of apparently healthy Egyptian children on the Bayley III evaluation differs in relation to age and sex. The most vulnerable age group at potential risk of DD was children aged 24-30 months. Efforts must be directed to investigate the nutritional, physical, psychological and safety needs of this group. Attention must be paid to early childhood intervention programs that stimulate development, especially language development, and they must be tailored on the basis of age and gender. Gender-specific norms may be needed in the evaluation of language development.