Friedenreich C M, Courneya K S, Bryant H E
Division of Epidemiology, Prevention and Screening, Alberta Cancer Board, Calgary, Canada.
Med Sci Sports Exerc. 1998 Feb;30(2):266-74. doi: 10.1097/00005768-199802000-00015.
To develop and test the intra-rater reliability of an interview-administered questionnaire that assesses lifetime patterns of total physical activity including occupational, household, and exercise/sports activities.
The questionnaire was developed and pretested using cognitive interviewing techniques on a sample of women with and without previous breast cancer diagnoses. A pilot study was conducted with 115 women who were interviewed twice, 6 to 8 wk apart by interviewers trained in cognitive interviewing methods. Respondents used recall calendars to record their education, occupations, life events, and physical activity patterns before the interviews. Interviewers helped respondents recall their lifetime exposures, including their occupational, household, and exercise/sports activities, using these calendars and memory-probing strategies. Activity levels were estimated as the average number of hours of activity per week over different time periods. Means and correlation coefficients were estimated and compared for the two time periods.
The questionnaire was found to be highly reliable. The test-retest correlations for hours per week spent in total lifetime physical activity was 0.74, for lifetime occupational activity was 0.87, for household activity was 0.77, and for exercise/sports activities was 0.72.
This is the first questionnaire to measure lifetime physical activity by collecting data on each type of physical activity separately over lifetime and by measuring frequency, intensity, and duration of each activity. It is also the first physical activity questionnaire to be developed, refined, and administered using cognitive-based methods employed in survey research. Respondents were able to reliably recall their lifetime physical activity patterns. This instrument can be used for any disease outcome for which physical activity may be a risk factor.
开发并测试一份通过访谈进行的问卷的评分者内信度，该问卷用于评估一生总的身体活动模式，包括职业活动、家务活动以及锻炼/体育活动。
该问卷通过认知访谈技术进行开发和预测试，样本为有和没有乳腺癌诊断史的女性。对115名女性进行了一项试点研究，由接受过认知访谈方法培训的访谈者对她们进行两次访谈，间隔6至8周。受访者在访谈前使用回忆日历记录她们的教育程度、职业、生活事件和身体活动模式。访谈者利用这些日历和记忆探测策略帮助受访者回忆她们一生的经历，包括职业、家务和锻炼/体育活动。活动水平以不同时间段每周活动的平均小时数来估计。对两个时间段的均值和相关系数进行了估计和比较。
该问卷被发现具有高度可靠性。一生总的身体活动每周花费小时数的重测相关系数为0.74，一生职业活动的重测相关系数为0.87，家务活动的重测相关系数为0.77，锻炼/体育活动的重测相关系数为0.72。
这是第一份通过分别收集一生中每种身体活动类型的数据，并测量每种活动的频率、强度和持续时间来测量一生身体活动的问卷。它也是第一份使用调查研究中基于认知的方法开发、完善和实施的身体活动问卷。受访者能够可靠地回忆起她们一生的身体活动模式。该工具可用于任何身体活动可能是危险因素的疾病结局。
