Wendel-Vos G C Wanda, Schuit A Jantine, Saris Wim H M, Kromhout Daan
Department for Chronic Diseases Epidemiology, National Institute for Public Health and the Environment, P.O. Box 1, 3720 BA, Bilthoven, The Netherlands.
J Clin Epidemiol. 2003 Dec;56(12):1163-9. doi: 10.1016/s0895-4356(03)00220-8.
BACKGROUND/OBJECTIVES: The purpose of this study is to determine reproducibility and relative validity of the Short QUestionnaire to ASsess Health-enhancing physical activity (SQUASH).
Participants (36 men and 14 women, aged 27-58) were asked to complete the SQUASH twice with an inbetween period of approximately 5 weeks. In addition, participants wore the Computer Science and Applications (CSA) Activity Monitor for a 2-week period following the first questionnaire.
The Spearman correlation for overall reproducibility of the SQUASH was 0.58 (95%-CI 0.36-0.74). Correlations for the reproducibility of the separate questions varied between 0.44 and 0.96. Spearman's correlation coefficient between CSA readings and the total activity score was 0.45 (95%-CI 0.17-0.66).
In conclusion, the SQUASH is a fairly reliable and reasonably valid questionnaire and may be used to order subjects according to their level of physical activity in an adult population. Because the SQUASH is a short and simple questionnaire, it may proof to be a very useful tool for the evaluation of health enhancing physical activity in large populations.
背景/目的：本研究旨在确定用于评估促进健康的身体活动的简短问卷（SQUASH）的可重复性和相对有效性。
参与者（36名男性和14名女性，年龄在27至58岁之间）被要求完成两次SQUASH问卷，中间间隔约5周。此外，参与者在第一次问卷调查后的两周内佩戴计算机科学与应用（CSA）活动监测器。
SQUASH总体可重复性的Spearman相关性为0.58（95%置信区间0.36 - 0.74）。各个问题可重复性的相关性在0.44至0.96之间变化。CSA读数与总活动得分之间的Spearman相关系数为0.45（95%置信区间0.17 - 0.66）。
总之，SQUASH是一份相当可靠且合理有效的问卷，可用于根据成年人群的身体活动水平对受试者进行排序。由于SQUASH是一份简短且简单的问卷，它可能被证明是评估大量人群中促进健康的身体活动的非常有用的工具。
