Abstract

Objective: Obesity, especially abdominal, is a risk factor for many diseases. This study explored trends in the prevalence of general and abdominal obesity, 1986–2004, in northern Sweden.Methods and Procedures: Cross‐sectional population surveys were performed in 1986, 1990, 1994, 1999, and 2004; 250 men and 250 women aged 25–34, 35–44, 45–54, and 55–64 years (from 1994, also 65–74 years) were randomly selected; the overall participation rate was 77%. Anthropometric data were used.Results: Weight and BMI increased in all men, most significantly in men aged 25–64 years (P < 0.0005). Weight increased in women aged 25–64 years (P < 0.005) and BMI in women aged 25–44 years (P < 0.005). Prevalence of obesity (BMI ≥ 30) increased significantly in men aged 25–44 and 55–74 years (P < 0.005; for men 65–74 years old, P < 0.05) and in women aged 25–44 years (P < 0.005). Waist circumference decreased significantly between 1986 and 1990 in all women (P < 0.005) and in men aged 55–64 years (P < 0.05). After 1990 waist circumference increased, most markedly so in women; by 2004 circumference measurements for women, and for men aged 55–64 years, were equal to those of 1986, while for men aged 25–54 years they were higher. Prevalence of abdominal obesity has increased since 1990, most markedly so in women aged 45–64 years (P < 0.0005).Discussion: The rapid increase in both general and central obesity raises concern for the future; increasing abdominal obesity in women is particularly alarming.

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