Document Type

Article

Publication Date

1-1-2015

Keywords

Adolescent, Adult, Body Height, Body Mass Index, Body Weight, Cross-Sectional Studies, Female, Humans, Male, Obesity, Obesity, Morbid, Overweight, Reproducibility of Results, Self Report, Students, United States, Universities, Young Adult

Abstract

OBJECTIVE: This study examined associations between college students' self-report and measured height and weight.

METHODS: Participants (N = 1,686) were 77% white, 62% female, aged 18-24 years (mean ± SD, 19.1 ± 1.1 years), and enrolled at 8 US universities. Body mass index (BMI) was calculated for self-report (via online survey); trained researchers measured height and weight and categorized them as normal (18.5 to < 25), overweight (25 to < 30), obese (30 to < 35), and morbidly obese (≥ 35).

RESULTS: Concordance of self-report vs objectively measured BMI groups using chi-square revealed that 93% were accurate, 4% were underestimated, and 2.7% were overestimated. Pearson correlations and adjusted linear regression revealed significant associations between self-report and measured BMI (r = .97; P < .001) and BMI adjusted for age, gender, and race/ethnicity (R² = .94). Concordance was also high between BMI categories (kappa = 0.77; P < .001).

CONCLUSIONS AND IMPLICATIONS: Findings provide support for the utility of self-report height and weight for survey research in college students.

Publication Title

Journal of Nutrition Education and Behavior

Volume

47

Issue

1

First Page

94

Last Page

98

PMCID

PMC4274244

DOI of Published Version

10.1016/j.jneb.2014.08.012

Comments

This is the NIH authors peer-reviewed manuscript. The version of record was published in (2015) Journal of Nutrition Education and Behavior, 47(1):94-98 DOI:10.1016/j.jneb.2014.08.012.

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