STUDY OBJECTIVES: The use of diagnostic classifications to define @entity25 is still unusual in epidemiological studies assessing the prevalence of @entity25 in an adolescent population. DESIGN: Cross-sectional study. Representative samples of general populations in United Kingdom, Germany and Italy were selected and interviewed by telephone about their sleep habits, @entity25 diagnoses. Overall, 724 adolescents ages 15-18 years and 1447 young adults ages 19 to 24 years were interviewed. ICSD-90 and DSM-IV diagnoses provided by the Sleep-EVAL expert system were used for the comparisons. SETTING: N/A. @entity1 : N/A. INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: 8% of the adolescents and 12.6% of the young adults had ICSD @entity10281 or @entity25 associated with a @entity146 . According to the DSM-IV classification, 5.7% of the adolescents and 8.1% of the young adults had a @entity10281 diagnosis. The comparison between the two classifications show that 73.2% of adolescents and young adults with a DSM-IV @entity10281 diagnosis also had similar ICSD diagnosis. The reverse comparison, ICSD vs. DSM-IV, shows that 39.8% of the subjects with an ICSD diagnosis had a DSM-IV diagnosis. DSM-IV primary @entity22 was the most frequent diagnosis. Subjects with such a diagnosis were found in about 10 different ICSD diagnoses, mainly @entity10281 , psychophysiological or @entity22 and @entity1949 . CONCLUSIONS: ICSD-90 classification provided higher prevalence of @entity25 diagnoses than the DSM-IV classification. In adolescents and young adults, DSM-IV primary @entity22 is two times more often associated with ICSD @entity10281 than with ICSD psychophysiological or @entity22 .

Comparability of XXXX diagnoses using DSM-IV and ICSD classifications with adolescents.

@entity1 :: ('9606', 'Species') :: ['PARTICIPANTS'] @entity1949 :: ('MESH:D012892', 'Disease') :: ['insufficient sleep syndrome'] @entity146 :: ('MESH:D001523', 'Disease') :: ['mental disorder'] @entity10281 :: ('MESH:D020920', 'Disease') :: ['dyssomnia', 'inadequate sleep hygiene'] @entity25 :: ('MESH:D012893', 'Disease') :: ['sleep disorders', 'sleep disorder', 'sleep disturbances', 'sleep and mental disorder'] @entity22 :: ('MESH:D007319', 'Disease') :: ['idiopathic insomnia', 'insomnia']
@entity25 :: (MESH:D012893,Disease) :: ['sleep disorders']
