Reliability and Validity of 2 Self-Report Measures to Assess Sedentary Behavior in Older Adults
Reliability and Validity of 2 Self-Report Measures to Assess Sedentary Behavior in Older Adults
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DOI：
10.1123/jpah.2013-0546
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发表时间：
2015-05-01
影响因子：
3.1
通讯作者：
Colbert, Lisa H.
中科院分区：
文献类型：
--
作者：
Gennuso, Keith R.;Matthews, Charles E.;Colbert, Lisa H.
背景资料：本研究的目的是检验2个现有的身体活动调查的信度和效度，以评估老年人久坐行为（SB）的时间。研究方法：58名成年人（≥ 65岁）在佩戴ActiGraph加速计（ACC）10天前后完成了耶鲁老年人身体活动调查（YPAS）和老年人社区健康活动模型计划（CHAMPS）。组内相关系数（ICC）检查重测信度。总体一致率和kappa统计量检查了YPAS有效性。Lin的一致性相关、Pearson相关和Bland-Altman分析检验了CHAMPS的效度。结果如下：两项调查的重测信度均为中等（ICC：YPAS = 0.59（P < .001），CHAMPS = 0.64（P < .001）），并显著低估了SB时间。YPAS和ACC之间的一致性较低（kappa = 0.0003）;然而，在YPAS反应类别中，ACC衍生的SB时间呈线性增加（P <0.01）。ACC衍生SB和CHAMPS之间的一致性较差（Lin r = 0.005; 95%CI，-0.010至0.020），CHAMPS四分位数之间无线性趋势（P = 0.53）。结论：这两项调查都不应作为研究中SB的唯一衡量标准;尽管YPAS有能力对个体进行排名，但它在相关SB研究中具有一定的价值。
Background: The purpose of this study was to examine the reliability and validity of 2 currently available physical activity surveys for assessing time spent in sedentary behavior (SB) in older adults. Methods: Fifty-eight adults (>= 65 years) completed the Yale Physical Activity Survey for Older Adults (YPAS) and Community Health Activities Model Program for Seniors (CHAMPS) before and after a 10-day period during which they wore an ActiGraph accelerometer (ACC). Intraclass correlation coefficients (ICC) examined test-retest reliability. Overall percent agreement and a kappa statistic examined YPAS validity. Lin's concordance correlation, Pearson correlation, and Bland-Altman analysis examined CHAMPS validity. Results: Both surveys had moderate test-retest reliability (ICC: YPAS = 0.59 (P < .001), CHAMPS = 0.64 (P < .001)) and significantly underestimated SB time. Agreement between YPAS and ACC was low (kappa = 0.0003); however, there was a linear increase (P < .01) in ACC-derived SB time across YPAS response categories. There was poor agreement between ACC-derived SB and CHAMPS (Lin's r = .005; 95% CI, -0.010 to 0.020), and no linear trend across CHAMPS quartiles (P = .53). Conclusions: Neither of the surveys should be used as the sole measure of SB in a study; though the YPAS has the ability to rank individuals, providing it with some merit for use in correlational SB research.