Developmental delay at 12 months in children born extremely preterm

Comparative use of the Ages and Stages Questionnaires in the USA and Scandinavia: a systematic review

AIM

The aim of this systematic review was to investigate screening practices with the Ages and Stages Questionnaires (ASQ) and the Ages and Stages Questionnaires: Social-Emotional (ASQ:SE) in the USA and Scandinavia and to identify practical lessons and research opportunities.

METHOD

The review was performed for ASQ- and ASQ:SE-related studies in children from birth to 5 years. From nine databases and 1689 references (published from 1988-2018), 127 articles were included and categorized using Covidence online software. The Critical Appraisal Skills Programme Checklists were used before data synthesis.

RESULTS

US studies primarily use the ASQ/ASQ:SE to detect delays in general and at-risk populations in medical settings, which increases early detection, clinician-referral, and intervention rates. Scandinavian studies commonly use the ASQ/ASQ:SE to monitor developmental-behavioural differences in intervention/exposure-based cohorts. Pre-visit screening yields completion/return rates of 83% to more than 90% and fosters same-day interpretation. When referrals are indicated, systemwide care coordination or colocation with a developmental-behavioural specialist is beneficial.

INTERPRETATION

Practical implementation lessons are reviewed. Research opportunities include investigating and measuring the ASQ/ASQ:SE's 'overall' sections. Danish, Norwegian, and Swedish translations are available but up-to-date norming and validation studies are needed throughout Scandinavia. Randomized controlled trials are needed to investigate outcomes in screened versus unscreened cohorts.

WHAT THIS PAPER ADDS

General and at-risk populations broadly benefited from periodic Ages and Stages Questionnaires (ASQ) and/or Ages and Stages Questionnaires: Social-Emotional (ASQ:SE) screening. Pre-visit ASQ and/or ASQ:SE screenining implementation systems work best. The ASQ and ASQ:SE 'overall' sections are not quantifiable and under-researched.

Ages and stages questionnaires: adaptation to an Arabic speaking population and cultural sensitivity

BACKGROUND

Early detection of developmental delay is essential to initiate early intervention. The Ages and Stages Questionnaires (ASQ) correlate well with physician's assessment and have high predictive value. No such tool exists in Arabic.

AIMS

Translate and test the applicability and reliability of Arabic translated Ages and Stages Questionnaires (A-ASQ) in an Arabic speaking population.

METHODS

733 healthy children were assessed. ASQ-II for 10 age groups (4-60 months) were translated to Arabic, back translations and cultural adaptation were performed. Test-retest reliability and internal consistency were evaluated using Pearson Correlation Coefficient (CC) and Cronbach's alpha (Cα). Mean scores per domain were compared to US normative scores using t-test.

RESULTS

A-ASQ, after culturally relevant adaptations, was easily administered for 4-36 months age groups but not for 4-5 year old due to numerous cultural differences in the later. For the 4-36 month age groups Pearson CC ranged from 0.345 to 0.833. The internal consistency coefficients Cα scores ranged from 0.111 to 0.816. Significant differences were found in the mean domain scores of all age groups between Lebanese and US normative sample (p-value <0.001) with some exceptions in gross motor, fine motor and personal social domains.

CONCLUSION

A-ASQ was easily translated and administered with acceptable internal consistency and reliability in the younger age groups. It proved to be culturally sensitive, which should be taken into consideration when adapting such tool to non-western populations.

Developmental outcome of very preterm babies using an assessment tool deliverable by health visitors

AIM

To assess the developmental outcome of very preterm infants using a developmental screening tool deliverable by health visitors.

METHODS

The study cohort consisted of preterm infants born at <32 weeks gestation or <1500g. Infants were assessed at 12 and 24 months corrected age using the Schedule of Growing Skills developmental screening test. Scores for skill areas were converted to developmental levels in months and graded as normal or mild, moderate or severe delay.

RESULTS

Of 101 infants assessed at 12 months, 12 (12%) had severe developmental delay (developmental level <6months) in one or more skill areas. At 24 months, severe developmental delay (developmental level <12 months) was found in 8 (9.1%) infants. Only 3 infants had severe global delay. However, approximately a third of infants showed mild or moderate delay in hearing and language, social or cognitive skill areas by 24 months.

CONCLUSION

Developmental assessment undertaken by health visitors may be used to measure outcome in preterm infants. Severe developmental delay was at a level consistent with other follow-up studies of very preterm infants. Severe delay was identified by the 12-month check and was mainly in areas of motor function and language. High levels of mild to moderate developmental delay were identified at the 24-month assessment.

Influência do tempo de hospitalização sobre o desenvolvimento neuromotor de recém-nascidos pré-termo

O objetivo deste estudo foi avaliar a influência do tempo de hospitalização sobre o desenvolvimento neuromotor de recém-nascidos pré-termo (RNPT). Foi feito um estudo prospectivo com 67 RNPT de idade gestacional <36 semanas. O desenvolvimento neuromotor foi avaliado pela escala motora infantil de Alberta (Alberta infant motor scale, AIMS), aplicada no ambulatório de seguimento, quando os RN tinham mediana de idade corrigida de 39 a 44 semanas. Para a análise comparativa, os RNPT foram distribuídos em dois grupos segundo o tempo de hospitalização (TH): grupo A (n=35), com TH <34 dias, e grupo B (n=32), com TH >34 dias. Na análise estatística considerou-se o nível de significância p<0,05. Os escores medianos na AIMS (numa faixa possível de 0 a 21) foram 7 no grupo A, 5 no grupo B; foram encontradas fracas correlações significativas nos dois grupos (r=0,32; r=0,34) entre o escore na AIMS e o TH. Os resultados indicam que os RNPT que permaneceram por mais de 34 dias hospitalizados mostraram atraso no desenvolvimento neuromotor, sugerindo que, sem excluir outros fatores, quanto maior o tempo de internação do RN, maior seu comprometimento motor.

Use of the Ages and Stages Questionnaire to predict outcome after hypoxic-ischaemic encephalopathy in the neonate

BACKGROUND

Infants who suffer hypoxic-ischaemic encephalopathy (HIE) at birth are at increased risk of developmental disability. In this at-risk population, reliable, inexpensive and early identification of those children who are likely to require formal developmental assessment and intervention is needed.

AIM

To evaluate the ability of the Ages and Stages Questionnaire (ASQ) to detect developmentally delayed children in an Australian population of infants who suffered HIE at birth.

METHODS

Fifty-five children who survived HIE were followed until 12-14 months of age. Test characteristics were calculated to examine the ability of the ASQ to appropriately identify developmentally delayed infants against this study's 'gold standard': the Bayley Scales of Infant Development II.

RESULTS

Comparing the ASQ with the Bayley Scales of Infant Development II, the questionnaire had the following test characteristics: sensitivity 92%, specificity 95%, positive predictive value 92%, negative predictive value 95% when used to detect severe developmental delay; and sensitivity 67%, specificity 93%, positive predictive value 92%, negative predictive value 68% when used to detect both severe and mild developmental delay. However, the ASQ used at standard cut-offs failed to detect any of the children with mild delay.

CONCLUSIONS

The ASQ is extremely effective for the detection of severe developmental delay in children who have suffered HIE at birth. Its capacity to identify those with milder delay is limited. The ability of the test to detect only those with severe developmental delay means that the ASQ is of little value as a screening tool in this population.

Known-groups analysis of the harris infant neuromotor test

BACKGROUND AND PURPOSE

The Harris Infant Neuromotor Test (HINT) is a screening tool designed to identify neuromotor or cognitive/behavioral concerns in infants who are healthy or at high risk between the ages of 3 and 12 months. The purpose of this study was to determine whether the HINT could distinguish between infants at high risk and infants at low risk for neuromotor delays.

SUBJECTS AND METHODS

Following HINT administration by trained health care professionals, scores were compared for 54 high-risk infants and 412 low-risk infants with a t test.

RESULTS

Mean HINT scores for infants at low risk were lower than mean scores for infants at high risk, as would be expected in that higher scores indicate higher risk. Significant differences were found at 4, 5, 7, and 8 months. At 6 months, there were no significant differences. There were not enough high-risk infants in other subgroups for reliable comparison.

DISCUSSION AND CONCLUSION

The HINT appears to discriminate effectively between infants who are at low risk and infants who are at high risk for neuromotor delays, supporting the use of the HINT as a screening tool for infants in the first year of life.