Falcão H, Lunet N, Lopes C, Barros H
Department of Hygiene and Epidemiology, University of Porto Medical School, Porto, Portugal.
Eur J Clin Nutr. 2004 Dec;58(12):1621-5. doi: 10.1038/sj.ejcn.1602017.
To describe the frequency and epidemiological features of self-reported food hypersensitivity in Portuguese adults.
Cross-sectional.
Participants were selected by random digit dialing among residents of Porto.
In total, 659 individuals over 39 y were asked to recall the occurrence of food hypersensitivity, and to describe the most serious episode. The adoption of eviction diets and previous medical diagnosis of food allergy were recorded, and recent dietary intake was evaluated using a validated food frequency questionnaire.
Self-reported food allergy was more frequent in women than men (7.3 vs 1.9%, P<0.01) and decreased with age. Age- and sex-standardized (European population > or =40 y) prevalence of food hypersensitivity was 4.8% (95% CI 3.4-6.9%). Most subjects (67.6%) referred allergy to a single food, fresh fruits being the more frequently incriminated (25%). Approximately 90% that reported food allergy declared the adoption of eviction diets, although 53% in fact ingested the incriminated foods during the previous year.
The adult prevalence of food hypersensitivity in Porto is one of the lowest observed worldwide, probably reflecting specificities of the genetic make-up and dietary patterns of our population.
描述葡萄牙成年人自我报告的食物过敏的频率和流行病学特征。
横断面研究。
通过随机数字拨号从波尔图居民中选取参与者。
总共659名39岁以上的个体被要求回忆食物过敏的发生情况，并描述最严重的发作。记录采用排除饮食的情况和先前食物过敏的医学诊断，并使用经过验证的食物频率问卷评估近期饮食摄入量。
自我报告的食物过敏在女性中比男性更常见（7.3%对1.9%，P<0.01），且随年龄增长而降低。年龄和性别标准化（欧洲人口≥40岁）的食物过敏患病率为4.8%（95%可信区间3.4 - 6.9%）。大多数受试者（67.6%）称对单一食物过敏，新鲜水果是最常涉及的食物（25%）。报告食物过敏的人中约90%宣称采用了排除饮食，尽管实际上53%的人在前一年摄入了被认为过敏的食物。
波尔图成年人食物过敏的患病率是全球观察到的最低患病率之一，这可能反映了我们人群基因构成和饮食模式的特殊性。
