Optimizing the Tracking of Falls in Studies of Older Participants: Comparison of Quarterly Telephone Recall With Monthly Falls Calendars in the MOBILIZE Boston Study
Optimizing the Tracking of Falls in Studies of Older Participants: Comparison of Quarterly Telephone Recall With Monthly Falls Calendars in the MOBILIZE Boston Study
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DOI：
10.1093/aje/kwq024
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发表时间：
2010-05-01
影响因子：
5
通讯作者：
Kiel, Douglas P.
中科院分区：
文献类型：
--
作者：
Hannan, Marian T.;Gagnon, Margaret M.;Kiel, Douglas P.
在老年人中追踪跌倒是一件具有挑战性的事情。在2007年10月至2008年2月期间进行的这项可靠性研究中，作者将参与者每天在日历上跌倒的记录与765名老年人组成的基于人群的动员波士顿研究队列中前3个月跌倒的回忆进行了电话调查。从队列中，随机选择了218名参与者。跌倒被前瞻性地记录在每日日历上(每月邮寄回来)。对过去3个月跌倒的电话召回是在2008年1月和2月进行的。计算一致性、敏感度和特异度，以比较3个月回想所确定的跌倒发生情况与相同3个月期间按日历(黄金标准)记录的跌倒发生情况。结果显示，召回和日历之间的一致性很好：27人报告两种方法都出现了下降。然而，尽管3个月的召回正确地对没有跌倒的人进行了分类(两种方法都有164人)，但它漏掉了25%的跌倒参与者(36名参与者中，9人没有通过电话召回报告跌倒)。Kappa值为0.74(95%可信区间：0.68，0.80)，敏感性为75%，特异性为96%。与每日日历相比，回顾3个月的跌倒导致对跌倒的漏报高达25%。在纵向研究中，日历应该被认为是确定跌落的首选方法。
Tracking falls among elders is challenging. In this reliability study, which took place between October 2007 and February 2008, the authors compared participants' daily recordings of falls on calendars with a telephone survey of recall of falls over the previous 3 months within the population-based MOBILIZE Boston Study cohort, a cohort of 765 elders. From the cohort, 218 participants were randomly selected. Falls were tracked prospectively on daily calendars (mailed back monthly). Telephone recalls of falls over the previous 3 months were conducted in January and February 2008. Agreement, sensitivity, and specificity were calculated to compare the occurrence of falls as determined by 3-month recall with falls recorded by daily calendar (gold standard) during the same 3-month period. Results showed good agreement between recall and calendars: 27 persons reported a fall by both methods. However, while the 3-month recall correctly classified persons who did not fall (164 persons by both methods), it missed 25% of participants who fell (of 36 participants with a calendar-reported fall, 9 did not report a fall by telephone recall). Kappa was 0.74 (95% confidence interval: 0.68, 0.80), sensitivity was 75%, and specificity was 96%. Retrospective 3-month recall of falls resulted in underreporting of falls by as much as 25% compared with daily calendars. Calendars should be considered the preferred method of ascertaining falls in longitudinal studies.