Estimation of fruit and vegetable intake using a two-item dietary questionnaire: a potential tool for primary health care workers
Estimation of fruit and vegetable intake using a two-item dietary questionnaire: a potential tool for primary health care workers
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DOI：
10.1016/s0939-4753(03)80163-1
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发表时间：
2003-02-01
影响因子：
3.9
通讯作者：
Steptoe, A
中科院分区：
文献类型：
--
作者：
Cappuccio, FP;Rink, E;Steptoe, A
背景和目的：高水果和蔬菜摄入量与癌症和心血管疾病的健康益处有关。因此，增加对预防慢性病的建议是不可或缺的。然而，测量摄入量需要进行广泛的饮食评估或测量特定的生物标记物，这对于在社区或初级保健环境中对个人饮食进行常规评估既不便宜也不可行。在一项评估饮食咨询计划以增加水果和蔬菜摄入量的研究中，我们的目的是评估一种简单工具的使用来估计水果和蔬菜的摄入量。方法和结果：我们研究了271名年龄在18至70岁的受试者(105名男性和166名女性)的两项水果和蔬菜摄入量问卷与生物标志物[血浆抗坏血酸、β-胡萝卜素和α-生育酚24小时尿钾排泄量]之间的关系。在控制了年龄、性别、维生素补充剂的使用、吸烟和体重后，报告每天水果和蔬菜摄入量大于或等于5份的患者的钾排泄量(差值15.6[95%可信区间：6.2~25.0]mmol/24小时)、尿钾/肌酐比(1.2[0.5~2.0])和血浆维生素C[10.0[-0.9~20.8]Mumol/L]均高于报告日摄入量小于或等于2.5的患者。β-胡萝卜素(p=0.04)、维生素C(p=0.01)和钾排泄量(p
Background and Aim: High fruit and vegetable intake is associated with health benefits for cancer and cardiovascular disease. An increase is therefore integral in recommendations for the prevention of chronic disease. However; measuring intake requires either extensive dietary assessment or the measurement of specific bio-markers which is neither cheap nor feasible for the routine assessment of an individual's diet in a community or primary care setting. Within the context of a study evaluating a dietary counselling programme to increase fruit and vegetable intake our aim was to assess the use of a simple tool to estimate fruit and vegetable intake.Methods and Results: We studied associations between biomarkers [plasma ascorbic acid, beta-carotene and alpha-tocopherol 24-hour urinary potassium excretion] and a two-item fruit and vegetable consumption questionnaire in 271 subjects (105 men and 166 women), aged 18 to 70 years. After controlling for age, sex, vitamin supplement use, smoking and body mass, those reporting a daily intake of greater than or equal to5 portions of fruit and vegetables had higher potassium excretion (difference 15.6 [95% confidence interval: 6.2 to 25.0] mmol/24h), urinary potassium/creatinine ratio (1.2 [0.5 to 2.0]) and plasma vitamin C (10.0 [-0.9 to 20.8] mumol/L) than those reporting less than or equal to2.5 portions per day. beta-carotene (p=0.04), vitamin C (p=0.01) and potassium excretion (p