González C A, Pera G, Quirós J R, Lasheras C, Tormo M J, Rodriguez M, Navarro C, Martinez C, Dorronsoro M, Chirlaque M D, Beguiristain J M, Barricarte A, Amiano P, Agudo A
Institut Catalàn d'Oncologia, Barcelona, Spain.
Public Health Nutr. 2000 Sep;3(3):329-36. doi: 10.1017/s1368980000000379.
Although the fatty acid fractions provide similar metabolizable energy, the type of dietary fat consumed could be relevant to the development of obesity.
To investigate the relationship between body mass index (BMI), obesity and the consumption of different types of fat and olive oil in a Mediterranean country with high prevalence of obesity, and high intake of monounsaturated fatty acids (MUFA) and olive oil.
The study was carried out in Spain among 23 289 women and 14 374 men, aged 29-69 years, who were participants of a large European prospective cohort.
: Information on usual food intake was collected by interviewers by means of a dietary history questionnaire. The association between obesity (BMI >/= 30 kg m2), dietary fat, other dietary patterns and other non-dietary factors were tested using multilinear regression analysis. The ratio of reported energy intake to energy requirement was used as an estimation of dietary underreporting.
The association between fatty acid fractions intake (saturated fatty acids (SFA) in women, and MUFA and polyunsaturated fatty acids (PUFA) in both sexes) and BMI was very weak, accounting for less than 1% of variance. All dietary and non-dietary variables accounted for 21% of variance in the measurement of BMI in women and only 6.7% of variance in men. Estimated underreporting of energy intake was 17.5% in obese women and 5.5% in obese men.
The association between consumption of specific types of dietary fat, olive oil and obesity in Spain is not very important. However, because of the cross-sectional design and some level of underreporting of energy intake observed in overweight subjects and overreporting in underweight subjects, systematic bias cannot be completely discarded.
尽管脂肪酸组分提供相似的可代谢能量，但所摄入膳食脂肪的类型可能与肥胖的发生有关。
在一个肥胖患病率高、单不饱和脂肪酸（MUFA）和橄榄油摄入量高的地中海国家，调查体重指数（BMI）、肥胖与不同类型脂肪及橄榄油消费之间的关系。
该研究在西班牙23289名女性和14374名男性中进行，年龄在29至69岁之间，他们是一项大型欧洲前瞻性队列研究的参与者。
访谈员通过饮食史问卷收集通常食物摄入量的信息。使用多线性回归分析测试肥胖（BMI≥30kg/m²）、膳食脂肪、其他膳食模式和其他非膳食因素之间的关联。报告的能量摄入量与能量需求的比率用作膳食摄入量低报的估计值。
脂肪酸组分摄入量（女性中的饱和脂肪酸（SFA）以及男女两性中的MUFA和多不饱和脂肪酸（PUFA））与BMI之间的关联非常弱，变异解释率不到1%。所有膳食和非膳食变量在女性BMI测量中解释了21%的变异，在男性中仅解释了6.7%的变异。估计肥胖女性的能量摄入量低报为17.5%，肥胖男性为5.5%。
在西班牙，特定类型的膳食脂肪、橄榄油消费与肥胖之间的关联不太重要。然而，由于横断面设计以及在超重受试者中观察到一定程度的能量摄入量低报和体重过轻受试者中高报的情况，不能完全排除系统偏差。
