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Evaluation of Psychometric Properties and Factorial Structure of ADHD Module of K-SADS-PL in Children From Rural Kenya.

Authors
  • Kariuki, Symon M1, 2
  • Newton, Charles R J C1, 2, 3
  • Abubakar, Amina1, 2, 3
  • Bitta, Mary A1
  • Odhiambo, Rachael1, 4
  • Phillips Owen, Jacqueline1, 5, 6
  • 1 KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya. , (Kenya)
  • 2 Department of Psychiatry, University of Oxford, UK.
  • 3 Pwani University, Kilifi, Kenya. , (Kenya)
  • 4 Aga Khan University, Nairobi, Kenya. , (Kenya)
  • 5 King's College London, UK.
  • 6 South London and The Maudsley NHS Foundation Trust, UK.
Type
Published Article
Journal
Journal of Attention Disorders
Publisher
SAGE Publications
Publication Date
Dec 01, 2020
Volume
24
Issue
14
Pages
2064–2071
Identifiers
DOI: 10.1177/1087054717753064
PMID: 29392964
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Objective: We determined the reliability of The Kiddie-Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime (K-SADS-PL) for screening and diagnosing ADHD in children. Method: K-SADS-PL was administered to 2,074 children in the community. Psychometric properties, factorial structure, and clinical validity of K-SADS-PL in screening or diagnosis of ADHD were examined. Results: Internal consistency was excellent for items in the screening interview (Macdonald's Omega [ω] = 0.89; 95% confidence interval [CI] [0.87, 0.94]) and diagnostic supplement (ω = 0.95; 95% CI [0.92, 0.99]). The standardized coefficients for items in the screening interview were acceptable (0.59-0.85), while fit indices for single factorial structure reached acceptable levels. Screening items were associated with high sensitivity (97.8%; 95% CI [97.2, 98.5%]) and specificity (94.0%; 95% CI [93.0, 95.0%]) for diagnosis of ADHD in the supplement. The test-retest and interinformant reliability as measured by intraclass correlation coefficient was good for most of the items. Conclusion: This large study shows that K-SADS-PL can be reliably used to screen and diagnose ADHD in children in Kenya.

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