Health Outcomes Research Group, Memorial Sloan-Kettering Cancer Center, New York, NY, USA.
Qual Life Res. 2011 Jun;20(5):769-77. doi: 10.1007/s11136-010-9791-5. Epub 2010 Nov 19.
Patient reporting of type 2 diabetes symptoms in a questionnaire with a 7-day recall period was expected to be different from symptom reports using a 7-day diary with repeated 24-h recall based on cognitive theory of memory processes and prior literature. This study compared these two types of recall in patients diagnosed with type 2 diabetes (T2D).
One hundred and forty adults with T2D completed a daily diary for 7 days containing 9 T2D-related symptom and impact items. On day 7, patients completed the same items with a 7-day recall period. We examined the concordance of 7-day recall with summary descriptors of the daily reports and compared the scores and the discriminant ability of 7-day recall and mean of daily reports.
Seven-day recall was most concordant with the mean of daily reports. The average difference in scores was small (range 0.22-0.77 on 11-point scale) and less than 0.5 standard deviations. For some items, the difference was positively associated with the variation in daily reports. The discriminant ability was comparable.
In this study population, a questionnaire with 7-day recall provided information consistent with a daily diary measure of the average week-long experience of T2D symptoms and impacts.
根据认知记忆过程理论和以往文献，我们预计，在有 7 天回顾期的问卷中报告 2 型糖尿病（T2D）症状与使用重复 24 小时回顾的 7 天日记报告症状之间存在差异。本研究比较了这两种类型的 T2D 患者的回忆方式。
140 名 T2D 成年人连续 7 天完成包含 9 项 T2D 相关症状和影响项目的每日日记。在第 7 天，患者使用 7 天回顾期完成相同的项目。我们检查了 7 天回顾与每日报告的综合描述符的一致性，并比较了 7 天回顾和每日报告平均值的得分和判别能力。
7 天回顾与每日报告的平均值最为一致。得分的平均差异较小（11 点量表的范围为 0.22-0.77），小于 0.5 个标准差。对于某些项目，差异与每日报告的变化呈正相关。判别能力相当。
在本研究人群中，带有 7 天回顾期的问卷提供的信息与 7 天日记测量 T2D 症状和影响的平均每周体验一致。
