North American Prodrome Longitudinal Study: A collaborative multisite approach to prodromal schizophrenia research
North American Prodrome Longitudinal Study: A collaborative multisite approach to prodromal schizophrenia research
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DOI:
10.1093/schbul/sbl075
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发表时间:
2007-05-01
影响因子:
6.6
通讯作者:
Heinssen, Robert
中科院分区:
文献类型:
--
作者:
Addington, Jean;Cadenhead, Kristin S.;Heinssen, Robert
This article presents the rationale, design, and preliminary findings of the North American Prodrome Longitudinal Study (NAPLS), a collaborative, multisite investigation into the earliest phase of psychotic illness. We describe how 8 independently conceived research projects were integrated methodologically, how diagnostic reliability was achieved across sites on the Structured Interview for Prodromal Syndromes, and how baseline and follow-up data were aggregated for 888 at risk and comparison subjects. Data are presented describing the demographic, academic/work, and diagnostic characteristics of 3 relevant subgroups: persons at heightened clinical risk for psychosis, help-seeking comparison subjects, and noupsychiatric controls. The NAPLS data set will be used to explore a series of questions related to prodromal psychosis, including the descriptive phenomenology of currently accepted diagnostic criteria, conversion rates over a 30-month period, predictors of psychosis onset and functional disability, and the impact of early treatment on the course of prodromal symptoms.