PMID: 8968854Dec 1, 1996Paper

An evaluation of various indices of body weight change and their relationship with coronary risk factors

International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity
T ItohT Okubo

Abstract

To compare interrelationships between different indices and their relationship with cardiovascular disease risk factors. Longitudinal comparison among weight change indices in the observation of a fixed population from age 21-40. 215 non-obese blue-collar workers in a steel company. Systolic blood pressure, diastolic blood pressure, serum cholesterol, serum uric acid, past history of illness, present illness, body mass index (BMI: weight/height2 (kg/m2)), indices of weight change (the intrapersonal standard deviation of BMI (ISD), the coefficient of variation of BMI (CV), the root mean square error of variation (RMSE) around the slope of BMI vs age, weight change categories (cycler, weight gainer, no changer, etc.), and number of weight cycles (NWC: one cycle is defined as 5% weight loss and 5% weight gain)). Indices were calculated using yearly and five-yearly measurements of weight for analyses. The average RMSE distinguished large cyclers from other weight change categories, while ISD and CV did not. The correlation between ISD and CV was strong and significant. That between RMSE and ISD (or CV) was moderate and significant. Among the weight change categories, no weight change group included many actual weight cyclers. As fo...Continue Reading

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