CORRELATIONS ANALYSIS BETWEEN ALBERTA INFANT MOTOR SCALE AND BAYLEY SCALE IN CHILDREN EXPOSED TO HIV

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dos Santos Cardoso de Sá C.1, Bonilha Huster Siegle C.2
1Federal University of São Paulo, Human Moviment Sciences, Santos, Brazil, 2Federal University of São Paulo - UNIFESP, Santos, Brazil

Background: Exposure to HIV during pregnancy and antiretroviral drugs are risks to development. Exposed child should have assessed its development since birth. For this, we should use validated tools. Alberta Infant Motor Scale is a tool which assess gross motor skills of children, with easy and quick application, and low cost. Up to now, this scale had not proven its validity for the population exposed to HIV. It's necessary to compare the results of this scale with another considered gold standard, Bayley scale, which assess gross and fine motor skills, has a high cost and longer application time required. Studies compare results of Alberta with Bayley's total motor score (gross+fine). However, it's also necessary to compare Alberta's result with only Bayley's gross motor result, because it's what both evaluate in common, for a more accurate correlation.

Purpose: To analyze differences in correlations between the Alberta scale and Bayley scale when comparing Alberta's score with Bayley's total motor score and Alberta's score with only Bayley's gross motor score in children exposed to HIV. And thus, check the validity of Alberta scale, making sure it can be substitute to Bayley, in assessing of this population.

Methods: We evaluated 54 children exposed to HIV in 4th, 8th and 12th months old, in the city of Santos (Brazil). Assessments were made by Alberta Infant Motor Scale and Bayley Scale (motor subscale). For the analysis of concurrent validity, the results of raw scores of the scales were compared with the correlation analysis. First analysis: Alberta’s score with Bayley’s total (gross+fine) motor score. Second analysis: Alberta’s score with Bayley’s gross motor score.

Results: In the first correlation analysis, the results were: r = 0.56 in the 4th month; r = 0.67 on the 8th month and r = 0.60 in 12th months. That is, a moderate correlation between the scales in all assessed months. In the second correlation analysis, the results were: r = 0.60 in the 4th month, a moderate correlation; r = 0.77 on the 8th month and r = 0.73 in the 12th month, that is, strong correlations in these months. The results were significant and indicate correlation between the scales. Found results agree with other studies that found high correlations between the scales in premature and risk groups. However, these studies compare results of gross motor skills assessments with gross and fine motor skills assessments. Our results show that correlation only between the gross motor skills is higher, and we believe this is the best way to compare the scales, with what both assessed in common.

Conclusion(s): Alberta scale has correlation with Bayley scale in assessing of children exposed to HIV, and can be a substitute to Bayley in assessing of these children. Results are stronger when comparing only what both scales assess in common.

Implications: Our study shows that Alberta scale can be used to assess HIV-exposed children, and it’s ideal for use in health services of countries that require economic tools.

Funding acknowledgements: Fundação de Amparo à Pesquisa do Estado de São Paulo. Brazil. Process 2015/25687-4.

Topic: Oncology, HIV & palliative care

Ethics approval: Approved to Comissão de Ética em Pesquisa by the number 0751/2016 (CAAE: 56743416.4.0000.5505). Brazil


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