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Revista Brasileira de Medicina do Esporte

versão impressa ISSN 1517-8692versão On-line ISSN 1806-9940

Resumo

FERREIRA, Luciana et al. RECONSIDERING THE USE OF CUT-OFF SCORES: DCDQ - BRAZIL. Rev Bras Med Esporte [online]. 2019, vol.25, n.4, pp.344-348.  Epub 29-Jul-2019. ISSN 1806-9940.  http://dx.doi.org/10.1590/1517-869220192504183194.

Introduction:

The DCDQ is a parental report designed to assess daily living activities of children, and serves as a useful questionnaire to aid in the diagnostic criteria of Developmental Coordination Disorder (DCD). It is divided into three components: control during movement, fine motor/handwriting, and general coordination. The results categorize children in two groups: “Indication of DCD/suspect DCD”, and “probably not DCD”.

Objective:

The objective of this study was to determine appropriate cut-off scores for the Developmental Coordination Disorder Questionnaire - Brazil (DCDQ-BR) for use with Brazilian children employing a large sample.

Methods:

Seven hundred and seven children ages 6-10 were assessed with the DCDQ-BR and the Bruininks-Oseretsky Test of Motor Proficiency (BOT-2). Descriptive statistics was used to characterize the sample, and concurrent validity was assessed using Pearson's Correlation Coefficient. Predictive validity was determined through values of sensitivity (S) and specificity (E), while ROC curves were used to determine the optimal cut-off score for the DCDQ-BR.

Results:

Pearson's correlation coefficient analysis revealed a significant correlation between total scores of the DCDQ-BR and BOT-2 (r= 0.55 (p=0.00). Cut-off scores for the DCDQ-BR based on the BOT-2 17th percentile (relating to below average descriptive category) were established as ≤40, ≤46 and ≤51 for ages 6-7 years and 11 months; 8-9 years and 11 months; and 10-10 years and 11 months, respectively.

Conclusion:

Based on the results of this study and previous literature suggesting the need for a reevaluation of cut-off scores for the Brazilian population with a larger sample, we recommend that the cut-off scores of the DCDQ-BR are adjusted to the values found with our sample. Level of evidence II; Diagnostic studies – Investigating a diagnostic test.

Palavras-chave : Motor Skills Disorders; Motor Skills; Child; Child Development.

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