This study provides a substantial additional amount of convergent-divergent validity data related to this extensively used diagnostic instrument.

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In a group of 22 autistic children aged 5 to 16 years and a group of normal controls matched for age and sex, catecholamines metabolism was investigated in plasma, platelets, and urine. This investigation was part of a research project in which several biological parameters (including serotonin) were explored simultaneously in the same children. In the autistic group, epinephrine and norepinephrine were significantly elevated in plasma, while epinephrin, norepinephrine, and dopamine were significantly lower in isolated platelets. No significant difference was found between the two groups for the urinary excretion of epinephrine, norepinephrine, dopamine, DOPAC, and MHPG. Other differences between the two groups in the statistical correlations of several biochemical parameters also suggest abnormalities of bioamine metabolism in the platelets of autistic children.

The development of structured diagnostic instruments has been an important step for research in child and adolescent psychiatry, but the adequacy of a diagnostic instrument in a given culture does not guarantee its reliability or validity in another population. The objective of the study was to describe the process of cross-cultural adaptation into Icelandic of the Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version (Kiddie-SADS-PL) and to test the inter-rater reliability of the adapted version. To attain cross-cultural equivalency, five important dimensions were addressed: semantic, technical, content, criterion and conceptual. The adapted Icelandic version was introduced into an inpatient clinical setting, and inter-rater reliability was estimated both at the symptom and diagnoses level, for the most frequent diagnostic categories in both international diagnostic classification systems (DSM-IV and ICD-10). The cross-cultural adaptation has provided an Icelandic version allowing similar understanding among different raters and has achieved acceptable cross-cultural equivalence. This initial study confirmed the quality of the translation and adaptation of Kiddie-SADS-PL and constitutes the first step of a larger validation study of the Icelandic version of the instrument.

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Background: Research is needed to establish the utility of diagnostic interviews in clinical settings. Studies comparing clinical diagnoses with diagnoses generated with structured instruments show generally low or moderate agreement and clinical diagnostic assignment (e.g. admission or chart diagnoses) are often considered to underdiagnose disorders. The objective of this study was to evaluate the impact of implementing the Schedule for Affective Disorders and Schizophrenia for School-Age Children -Present and Lifetime Version (Kiddie-SADS-PL) into an in-patient adolescent clinical setting.

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