Use of a food frequency questionnaire in American Indian and Caucasian pregnant women: a validation study
Use of a food frequency questionnaire in American Indian and Caucasian pregnant women: a validation study
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DOI：
10.1186/1471-2458-5-135
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发表时间：
2005-12-15
影响因子：
4.5
通讯作者：
Colditz, GA
中科院分区：
文献类型：
--
作者：
Baer, HJ;Blum, RE;Colditz, GA
背景：食物频率问卷(FFQ)已在孕妇中得到验证，但很少有研究专门针对低收入妇女和少数族裔。本研究的目的是检验哈佛服务问卷(HSFFQ)在低收入美国印第安人和白人孕妇中的效度。方法：对一名孕妇进行三次100个条目的HSFFQ测试，并在怀孕12周和28周时收集两组24小时的回忆表(共6份)。样本包括总共283名完成第一阶段研究的孕妇和246名完成第二阶段研究的女性。结果：两个阶段的平均衰减相关系数分别为0.09(多不饱和脂肪)至0.67(钙)和0.27(蔗糖)至0.63(总脂肪)。两个阶段的平均衰减相关系数分别为0.48和0.47。结论：HSFFQ是一种简单的自填式问卷，可用于根据孕期相对膳食摄入量对低收入美国印第安人和高加索妇女进行分类。在这一人群中使用它作为研究工具，可能会提供有关营养摄入量与妊娠结局之间关系的重要信息，并可能有助于确定哪些妇女群体将从营养干预中受益最多。
Background: Food frequency questionnaires (FFQs) have been validated in pregnant women, but few studies have focused specifically on low-income women and minorities. The purpose of this study was to examine the validity of the Harvard Service FFQ (HSFFQ) among low-income American Indian and Caucasian pregnant women.Methods: The 100-item HSFFQ was administered three times to a sample of pregnant women, and two sets of 24-hour recalls ( six total) were collected at approximately 12 and 28 weeks of gestation. The sample included a total of 283 pregnant women who completed Phase 1 of the study and 246 women who completed Phase 2 of the study. Deattenuated Pearson correlation coefficients were used to compare intakes of 24 nutrients estimated from the second and third FFQ to average intakes estimated from the week-12 and week-28 sets of diet recalls.Results: Deattenuated correlations ranged from 0.09 ( polyunsaturated fat) to 0.67 (calcium) for Phase 1 and from 0.27 ( sucrose) to 0.63 ( total fat) for Phase 2. Average deattenuated correlations for the two phases were 0.48 and 0.47, similar to those reported among other groups of pregnant women.Conclusion: The HSFFQ is a simple self-administered questionnaire that is useful in classifying low-income American Indian and Caucasian women according to relative dietary intake during pregnancy. Its use as a research tool in this population may provide important information about associations of nutrient intakes with pregnancy outcomes and may help to identify groups of women who would benefit most from nutritional interventions.