To estimate the prevalence of obesity and overweight in the population of Girona (Spain) between 1995 and 1999 and to divide the prevalences in geographical areas according to age and sex.
Height and ...weight were directly measures in 24,554 health care consumers older than 14 years (10,595 men and 13,959 women) treated in four primary health care areas: Girona 1, Girona 4, Salt and Camprodon and in one primary health care center in the province of Girona. Body mas index (BMI) was calcuted by dividing weight in kilograms bye height in meters squared. Obesity was defined as grades II and III of Garrow's index (BMI >= 30 kg/m2) and overweight as degree I (25 kg/m2 >= BMI < 30 kg/m2). Because the sample was not randomized, the prevalences were adequately weighted. The comparison between prevalences in two different primary health care areas for each sex (in the same Garrow's index and age group) was carried out using a parametric test of differences in proportions (Student's t-test). A hierarchical logistic regression was used to compare prevalences in the same grade Garrow's index, controlling for age and sex.
The prevalence of obesity was estimated as 15.6% in men aged from 20-74 years (from 14.0% in Girona 1 to 22.4% in Camprodon) and 17.5% for women (15.6% in Girona 1, 22.7% in Camprodon). The weighted mean was 16.7%. The prevalence of overweight was 44% in men and 33% in women and the weighted mean was 37.8%. The prevalence of obesity was graduated with statistically significant differences between Girona 1, Salt, Girona 4, Camprodon and Sils.
The estimates of the prevalences of obesity and overweight obtained in this study were closer to those of other studies in similar populations than previously believed. Indeed, the prevalences may be similar to those of the European Union and, in some age groups, to those of the United States.
Estimar y comparar la prevalencia de la obesidad y el sobrepeso en la población de Girona, entre 1995 y 1999, estratificando geográficamente por sexo y edad.
Medidas directas de talla y peso ...correspondientes a 24.554 usuarios mayores de 14 años (10.595 varones y 13.959 mujeres) atendidos en cuatro áreas básicas de salud (ABS): Girona 1, Girona 4, Salt y Camprodon, así como en un centro de atención primaria (CAP) de la provincia de Girona. Se calculó el índice de masa corporal (IMC) como el cociente entre el peso y la talla al cuadrado. La obesidad se define como los grados II y III del índice de Garrow (IMC ≥ 30 kg/m2) y el sobrepeso como el grado I (25 kg/m2 ≤ IMC < 30 kg/m2). Al no utilizarse una muestra aleatoria de sujetos, el cálculo de prevalencias y de sus errores estándar se corrigió mediante el uso de ponderaciones adecuadas. La comparación de las prevalencias entre dos ABS distintas para cada sexo se realizó utilizando un contraste paramétrico de diferencia de proporciones. La comparación entre las prevalencias de un determinado grado del índice de Garrow, controlando por sexo y edad, se llevó a cabo utilizando una regresión logística jerárquica.
La prevalencia de la obesidad se estimó en 15,6% entre los varones de 20 a 74 años (desde el 14,0% en Girona 1 hasta el 22,4% en Camprodon) y en un 17,5% entre las mujeres (un 15,6% en Girona 1 y un 22,7% en Camprodon), un 16,7% de promedio ponderado. La prevalencia del sobrepeso se sitúa en el 44% en varones y en un 33% en mujeres, un 37,8% de promedio ponderado. Existe una gradación en las prevalencias de la obesidad, con diferencias estadísticamente significativas: Girona 1, Salt, Girona 4, Camprodon y Sils.
Las estimaciones de la prevalencia de la obesidad y sobrepeso obtenidas en este trabajo no están tan alejadas como se creía de las estimadas en poblaciones de nuestro entorno. De hecho, podrían ser muy similares a las estimadas en la Unión Europea y, para algunos grupos de edad, incluso a las de Estados Unidos.
To estimate the prevalence of obesity and overweight in the population of Girona (Spain) between 1995 and 1999 and to divide the prevalences in geographical areas according to age and sex.
Height and weight were directly measures in 24,554 health care consumers older than 14 years (10,595 men and 13,959 women) treated in four primary health care areas: Girona 1, Girona 4, Salt and Camprodon and in one primary health care center in the province of Girona. Body mas index (BMI) was calcuted by dividing weight in kilograms bye height in meters squared. Obesity was defined as grades II and III of Garrow's index (BMI ≥ 30 kg/m2) and overweight as degree I (25 kg/m2 ≥ BMI < 30 kg/m2). Because the sample was not randomized, the prevalences were adequately weighted. The comparison between prevalences in two different primary health care areas for each sex (in the same Garrow's index and age group) was carried out using a parametric test of differences in proportions (Student's t-test). A hierarchical logistic regression was used to compare prevalences in the same grade Garrow's index, controlling for age and sex.
The prevalence of obesity was estimated as 15.6% in men aged from 20-74 years (from 14.0% in Girona 1 to 22.4% in Camprodon) and 17.5% for women (15.6% in Girona 1, 22.7% in Camprodon). The weighted mean was 16.7%. The prevalence of overweight was 44% in men and 33% in women and the weighted mean was 37.8%. The prevalence of obesity was graduated with statistically significant differences between Girona 1, Salt, Girona 4, Camprodon and Sils.
The estimates of the prevalences of obesity and overweight obtained in this study were closer to those of other studies in similar populations than previously believed. Inde-ed, the prevalences may be similar to those of the European Union and, in some age groups, to those of the United States.
PDF