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    Development of multivariable models to predict change in Body Mass Index within a clinical trial population of psychotic individuals.

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    Author
    Harrison, RNS; Gaughran, F; Murray, RM; Lee, SH; Cano, JP; Dempster, D; Curtis, CJ; Dima, D; Patel, H; de Jong, S; ...
    Date
    2017-11-07
    Source Title
    Scientific Reports
    Publisher
    Springer Science and Business Media LLC
    University of Melbourne Author/s
    Murray, Robin
    Affiliation
    Medical Education
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Harrison, R. N. S., Gaughran, F., Murray, R. M., Lee, S. H., Cano, J. P., Dempster, D., Curtis, C. J., Dima, D., Patel, H., de Jong, S. & Breen, G. (2017). Development of multivariable models to predict change in Body Mass Index within a clinical trial population of psychotic individuals.. Sci Rep, 7 (1), pp.14738-. https://doi.org/10.1038/s41598-017-15137-7.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/255283
    DOI
    10.1038/s41598-017-15137-7
    Open Access at PMC
    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677086
    Abstract
    Many antipsychotics promote weight gain, which can lead to non-compliance and relapse of psychosis. By developing models that accurately identify individuals at greater risk of weight gain, clinicians can make informed treatment decisions and target intervention measures. We examined clinical, genetic and expression data for 284 individuals with psychosis derived from a previously published randomised controlled trial (IMPACT). These data were used to develop regression and classification models predicting change in Body Mass Index (BMI) over one year. Clinical predictors included demographics, anthropometrics, cardiac and blood measures, diet and exercise, physical and mental health, medication and BMI outcome measures. We included genetic polygenic risk scores (PRS) for schizophrenia, bipolar disorder, BMI, waist-hip-ratio, insulin resistance and height, as well as gene co-expression modules generated by Weighted Gene Co-expression Network Analysis (WGCNA). The best performing predictive models for BMI and BMI gain after one year used clinical data only, which suggests expression and genetic data do not improve prediction in this cohort.

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