Changing perceptions of weight in Great Britain: comparison of two population surveys.

OBJECTIVES

To examine changes in public perceptions of overweight in Great Britain over an eight year period.

DESIGN

Comparison of data on self perceived weight from population surveys in 1999 and 2007.

SETTING

Household surveys of two representative samples in Great Britain.

PARTICIPANTS

853 men and 944 women in 1999, and 847 men and 989 women in 2007.

MAIN OUTCOME MEASURES

Participants were asked to report their weight and height and classify their body size on a scale from "very underweight" to "obese."

RESULTS

Self reported weights increased dramatically over time, but the weight at which people perceived themselves to be overweight also rose significantly. In 1999, 81% of overweight participants correctly identified themselves as overweight compared with 75% in 2007, demonstrating a decrease in sensitivity in the self diagnosis of overweight.

CONCLUSIONS

Despite media and health campaigns aiming to raise awareness of healthy weight, increasing numbers of overweight people fail to recognise that their weight is a cause for concern. This makes it less likely that they will see calls for weight control as personally relevant.