Development and validation of a population based risk algorithm for obesity: The Obesity Population Risk Tool (OPoRT).

ABSTRACT:

Background

Given the dramatic rise in the prevalence of obesity, greater focus on prevention is necessary. We sought to develop and validate a population risk tool for obesity to inform prevention efforts.

Methods

We developed the Obesity Population Risk Tool (OPoRT) using the longitudinal National Population Health Survey and sex-specific Generalized Estimating Equations to predict the 10-year risk of obesity among adults 18 and older. The model was validated using a bootstrap approach accounting for the survey design. Model performance was measured by the Brier statistic, discrimination was measured by the C-statistic, and calibration was assessed using the Hosmer-Lemeshow Goodness of Fit Chi Square (HL χ2).

Results

Predictive factors included baseline body mass ind

SUBMITTER: Lebenbaum M 

PROVIDER: S-EPMC5773177 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature