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Background: A few self-administered questionnaires are available for assessing mental health among adolescents in primary-care settings. Brief measures are desirable for use in big-data, epidemiological studies. Objectives: To evaluate a 7-item version, of the Teen Screen Questionnaire-Mental Health (TSQ-M), the TSQ-M-Short. Materials and Methods: In this prospective cross-sectional study of 140 adolescents, recruited from 6 rural or urban schools, the newly developed TSQ-M-Short as the measure for validation and General Health Questionnaire-12 item (GHQ-12) as the gold standard measure were administered by independent trained raters. Tests for diagnostic accuracy and validity were conducted. Results: A total TSQ-M-Short score of = 6 had a sensitivity of 76%, specificity of 74%, positive likelihood ratio of 2.99, negative likelihood ratio of 0.33, positive predictive value of 6% and a negative predictive value of 82.1%. The area under curve (AUC) in the Receiver Operating Characteristic (ROC) for the TSQ-M-Short version was 0.84 (95% cumulative incidence (CI) = 0.76-0.89). The AUC for the TSQ-M-Short version was higher than the AUC for the original version, and the difference between the areas was 0.10 (95% CI = 0.02- 0.19), which was statistically significant (z = 2.49; P = 0.01). The internal consistency of TSQ-M-Short, as measured by chronbach's a, was 0.34 (95% CI = 0.15-0.48). The construct validity demonstrated a 3-factor structure, which explained 55% of the variance. Conclusion: The TSQ-M-Short has an overall diagnostic accuracy which is better than the original TSQ-M. Although the original version includes symptoms for more mental health disorders, providing a wider screen. This short version will prove useful in big-data studies. [ABSTRACT FROM AUTHOR]

Objective: To develop and validate a concise, parent-completed Brief Intellectual Disability Scale (BIDS) for children in low--disability resource and high--disability care burden countries. Study Design and Setting: In this prospective cross-sectional study of 124 children recruited from a facility for intellectual disability (ID), the newly developed BIDS as the measure for validation as well as for the gold standard and convergent and divergent validities was administered by independent raters. Tests for diagnostic accuracy, reproducibility, and validity were conducted at the item and scale levels. Results: The BIDS scores of ≥5 (sensitivity [Sn]71.43%, specificity [Sp]580.95%) and ≥11 (Sn=4.29%, Sp=100%), with area under the curve of 0.79, are suggested, respectively, for screening and diagnostic use in Indian populations. The inter-rater reliability (intraclass correlation coefficient [ICC]=0.96) and test--retest reliability at 4 weeks (ICC=0.95) for BIDS are strong. Besides the adequate face and content validities, BIDS demonstrates good internal consistency (Cronbach a50.80) and item-total correlation. There is moderate convergent validity with BineteKamat Test of Intelligence or Gesell's Developmental Schedule (r50.66, P50.001) as well as with adaptive behavior measure of Vineland Social Maturity Scale (r5 0.52, P50.001) and low divergent validity with the subscales of Attention Deficit Disorder with Hyperactivity: Comprehensive Teacher Rating Scale (r50.11, P50.7; r50.18, P50.5; r50.13, P50.6; r50.08, P50.7). An exploratory factor analysis demonstrated a three-factor structure, explaining 60% of variance. Conclusion: The BIDS shows promise as a psychometrically adequate, yet brief measure for identifying ID in countries with low disability care resources and high disability-related burden. [ABSTRACT FROM AUTHOR]