Misra Puneet, Upadhyay Ravi Prakash, Krishnan Anand, Sharma Neelam, Kapoor Suresh K
Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India.
Department of Community Medicine, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India.
Int J Prev Med. 2014 Aug;5(8):952-9.
Physical activity (PA) is protective against non-communicable diseases and it can reduce premature mortality. However, it is difficult to assess the frequency, duration, type and intensity of PA. The global physical activity questionnaire (GPAQ) has been developed by World Health Organization with the aim of having valid and reliable estimates of PA. The primary aim of this study is to assess the repeatability of the GPAQ instrument and the secondary aim is to validate it against International Physical Activity Questionnaire (IPAQ) and against an objective measure of PA (i.e., using pedometers) in both rural and peri-urban areas of North India.
A total of 262 subjects were recruited by random selection from Ballabgarh Block of Haryana State in India. For test retest repeatability of GPAQ and IPAQ, the instruments were administered on two occasions separated by at least 3 days. For concurrent validity, both questionnaires were administered in random order and for criterion validity step counters were used. Spearman's correlation coefficient, intra-class correlation (ICC) and Cohen's kappa was used in the analysis.
For GPAQ validity, the spearman's Rho ranged from 0.40 to 0.59 and ICC ranged from 0.43 to 0.81 while for IPAQ validity, spearman correlation coefficient ranged from 0.42 to 0.43 and ICC ranged from 0.56 to 0.68. The observed concurrent validity coefficients suggested that both the questionnaires had reasonable agreement (Spearman Rho of >0.90; P < 0.0001; ICC: 0.76-0.91, P < 0.05).
GPAQ is similar to IPAQ in measuring PA and can be used for measurement of PA in community settings.
身体活动（PA）对非传染性疾病具有预防作用，并且可以降低过早死亡率。然而，评估身体活动的频率、持续时间、类型和强度却很困难。全球身体活动问卷（GPAQ）由世界卫生组织开发，旨在对身体活动进行有效且可靠的评估。本研究的主要目的是评估GPAQ工具的可重复性，次要目的是在印度北部农村和城市周边地区，将其与国际身体活动问卷（IPAQ）以及身体活动的客观测量方法（即使用计步器）进行对比验证。
从印度哈里亚纳邦巴拉加尔区随机选取了262名受试者。为了测试GPAQ和IPAQ的重测可重复性，在至少间隔3天的两个时间点发放问卷。为了进行同时效度分析，两份问卷随机发放，并且使用步数计数器进行效标效度分析。分析中使用了斯皮尔曼相关系数、组内相关系数（ICC）和科恩kappa系数。
对于GPAQ效度，斯皮尔曼相关系数范围为0.40至0.59，ICC范围为0.43至0.81；而对于IPAQ效度，斯皮尔曼相关系数范围为0.42至0.43，ICC范围为0.56至0.68。观察到的同时效度系数表明，两份问卷具有合理的一致性（斯皮尔曼相关系数>0.90；P<0.0001；ICC：0.76 - 0.91，P<0.05）。
在测量身体活动方面，GPAQ与IPAQ相似，可用于社区环境中身体活动的测量。
