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Validity of self-reported height and weight in a Japanese workplace population.
Int J Obes (Lond). 2005 Sep; 29(9):1093-9.IJ

Abstract

OBJECTIVE

To assess the validity of self-reported height and weight in a Japanese workplace population, and to examine factors associated with the validity of self-reported weight.

DESIGN

Comparison of self-reported height and weight with independent measurement.

SUBJECTS

In total, 4253 men and 1148 women aged 35-64 y (mean measured body mass index (BMI): 23.3 kg/m(2) in men, 21.9 kg/m(2) in women) were included in the study.

MEASUREMENTS

Self-reported height and weight were obtained by a self-administered questionnaire. Measured height and weight were based on annual health checkups. Sex, age, measured BMI, and the presence of hypertension, diabetes, and hyperlipidemia were examined as potential factors associated with the accuracy of self-reported weight.

RESULTS

Self-reported height and weight were highly correlated with measured height and weight for men and women (Pearson's r for men and women: 0.979 and 0.988 in height, 0.961 and 0.959 in weight, 0.943 and 0.950 in BMI, respectively). For men, mean differences+/-2 s.d. of height and weight were 0.078+/-2.324 cm and -0.034+/-5.012 kg, respectively, and for women 0.029+/-1.652 cm and 0.024+/-4.192 kg, respectively. The prevalence of obesity with BMI > or =25 kg/m(2) based on self-reported data (23.6 and 11.5% for men and women, respectively) was slightly smaller than that based on measured data (24.9 and 12.4%, respectively). Specificity and sensitivity, however, were quite high for both men and women (sensitivity was 85.8 and 85.2%, and specificity was 97.0 and 98.9%, respectively). The subjects with higher measured BMI significantly underestimated their weight compared with those with smaller BMI after adjustments for age in men and women. Furthermore, the presence of diabetes in men and age in women affected self-reported weight. Neither the presence of hypertension nor hyperlipidemia was associated with reporting bias.

CONCLUSION

The self-reported height and weight were generally reliable in the middle-aged employed Japanese men and women. However, it should be remembered that self-reported weight was biased by actual BMI and affected by age and the presence of diabetes.

Authors+Show Affiliations

Department of Public Health/Health Information Dynamics, Program in Health and Community Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15925952

Citation

Wada, K, et al. "Validity of Self-reported Height and Weight in a Japanese Workplace Population." International Journal of Obesity (2005), vol. 29, no. 9, 2005, pp. 1093-9.
Wada K, Tamakoshi K, Tsunekawa T, et al. Validity of self-reported height and weight in a Japanese workplace population. Int J Obes (Lond). 2005;29(9):1093-9.
Wada, K., Tamakoshi, K., Tsunekawa, T., Otsuka, R., Zhang, H., Murata, C., Nagasawa, N., Matsushita, K., Sugiura, K., Yatsuya, H., & Toyoshima, H. (2005). Validity of self-reported height and weight in a Japanese workplace population. International Journal of Obesity (2005), 29(9), 1093-9.
Wada K, et al. Validity of Self-reported Height and Weight in a Japanese Workplace Population. Int J Obes (Lond). 2005;29(9):1093-9. PubMed PMID: 15925952.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Validity of self-reported height and weight in a Japanese workplace population. AU - Wada,K, AU - Tamakoshi,K, AU - Tsunekawa,T, AU - Otsuka,R, AU - Zhang,H, AU - Murata,C, AU - Nagasawa,N, AU - Matsushita,K, AU - Sugiura,K, AU - Yatsuya,H, AU - Toyoshima,H, PY - 2005/6/1/pubmed PY - 2006/2/8/medline PY - 2005/6/1/entrez SP - 1093 EP - 9 JF - International journal of obesity (2005) JO - Int J Obes (Lond) VL - 29 IS - 9 N2 - OBJECTIVE: To assess the validity of self-reported height and weight in a Japanese workplace population, and to examine factors associated with the validity of self-reported weight. DESIGN: Comparison of self-reported height and weight with independent measurement. SUBJECTS: In total, 4253 men and 1148 women aged 35-64 y (mean measured body mass index (BMI): 23.3 kg/m(2) in men, 21.9 kg/m(2) in women) were included in the study. MEASUREMENTS: Self-reported height and weight were obtained by a self-administered questionnaire. Measured height and weight were based on annual health checkups. Sex, age, measured BMI, and the presence of hypertension, diabetes, and hyperlipidemia were examined as potential factors associated with the accuracy of self-reported weight. RESULTS: Self-reported height and weight were highly correlated with measured height and weight for men and women (Pearson's r for men and women: 0.979 and 0.988 in height, 0.961 and 0.959 in weight, 0.943 and 0.950 in BMI, respectively). For men, mean differences+/-2 s.d. of height and weight were 0.078+/-2.324 cm and -0.034+/-5.012 kg, respectively, and for women 0.029+/-1.652 cm and 0.024+/-4.192 kg, respectively. The prevalence of obesity with BMI > or =25 kg/m(2) based on self-reported data (23.6 and 11.5% for men and women, respectively) was slightly smaller than that based on measured data (24.9 and 12.4%, respectively). Specificity and sensitivity, however, were quite high for both men and women (sensitivity was 85.8 and 85.2%, and specificity was 97.0 and 98.9%, respectively). The subjects with higher measured BMI significantly underestimated their weight compared with those with smaller BMI after adjustments for age in men and women. Furthermore, the presence of diabetes in men and age in women affected self-reported weight. Neither the presence of hypertension nor hyperlipidemia was associated with reporting bias. CONCLUSION: The self-reported height and weight were generally reliable in the middle-aged employed Japanese men and women. However, it should be remembered that self-reported weight was biased by actual BMI and affected by age and the presence of diabetes. SN - 0307-0565 UR - https://www.unboundmedicine.com/medline/citation/15925952/Validity_of_self_reported_height_and_weight_in_a_Japanese_workplace_population_ L2 - https://doi.org/10.1038/sj.ijo.0803012 DB - PRIME DP - Unbound Medicine ER -