BackgroundFew studies have prospectively examined psychosocial and psychiatric
predictors of adolescent substance use disorders simultaneously.AimsTo identify psychosocial and psychiatric predictors of substance use
disorders in adolescence.MethodSchool children aged 12 years (s. d. =0. 3) free from any substance use
disorder at grade7(n=428) were assessed in three
consecutive years, using a standardised psychiatric interview. Their
baseline psychosocial information was also collected. The outcome was the
onset age of a substance use disorder. The Cox regression model was used
for data analysis.ResultsThe most significant predictive factors for adolescent substance use
disorder included male gender, attention-deficit hyperactivity disorder,
conduct disorder and sibling use of tobacco. Three protective factors
against such morbidity included living in a household with two parents, a
good academic grade at grade 7 and objection to the use of
substances.ConclusionsEarly intervention for disruptive behaviour disorders and specific
psychosocial risk factors might prevent substance use disorders in early
adolescence.
The frequency of APP prescription varied between countries and territories, suggesting that a host of clinical and socio-cultural factors played a role in determining APP use in Asia. To resolve the discrepancy between treatment recommendation and clinical practice, regular reviews of prescription patterns are needed.
The purpose of the present study was to review the prescription patterns of antidepressants in different countries in East Asia. The survey was conducted in China, Japan, Korea, Singapore and Taiwan from October 2003 to March 2004 using the unified research protocol and questionnaire. Twenty teaching hospitals and major psychiatric hospitals participated and a total of 1898 patients receiving antidepressants were analyzed. The survey provided a number of interesting characteristics on the prescription patterns of antidepressant in East Asia. Out of 56 antidepressants listed in the Anatomical Therapeutic Chemical Classification (ATC) index by the World Health Organization (WHO) Collaborating Center for Drug Statistics Methodology (Oslo), only 26 antidepressants were prescribed in participating countries in East Asia. On average 38.4% of prescriptions of antidepressants were for patients with diagnoses other than depressive disorders. The availability and commonly prescribed antidepressants varied greatly by country. The selective serotonin re-uptake inhibitors (SSRI) and other newer antidepressants were prescribed in approximately 77.0% of all cases. At the time of the survey, only two SSRI medications were available in Japan. However, five types of SSRI were available and were often prescribed in Korea.
This survey revealed that high antipsychotic dosing is not an uncommon practice in East Asia. It behooves the prescribing clinicians to constantly reevaluate the rationale for such a practice.
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