Reliability of Long-term Recall of Participation in Physical Activity by Middle-aged Men and Women

Blair, Steven N.; Dowda, Marsha; Pate, Russell R.; Kronenfeld, Jennie Jacobs; Howe, Henry G.; Parker, Gwynne M.; Blair, Aaron; Fridinger, Fred

doi:10.1093/oxfordjournals.aje.a115871

Cited by 129 publications

(71 citation statements)

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“…The corresponding average reproducibility values for the 6 remaining items were 0.63 for 2 weeks and 0.43 for 6 years. The results are in accordance with the previously reported results, with comparisons of different time intervals between test and re-test (1 I), and also with the results of a study of physical activities during leisure time (15). The majority of the subjects in our study (about 75%) were still working in the same occupations in 1995 as in 1989.…”

Section: Discussionsupporting

confidence: 93%

Evaluation of questionnaire-based information on previous physical work loads

Torgén¹,

Winkel²,

Alfredsson³

et al. 1999

Scand J Work Environ Health

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Section: Discussionsupporting

confidence: 93%

Evaluation of questionnaire-based information on previous physical work loads

Torgén¹,

Winkel²,

Alfredsson³

et al. 1999

Scand J Work Environ Health

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“…Interviewer-derived assessments of lifetime physical activity have been observed to be reproducible (Friedenreich et al, 1998a) and to provide reasonable recall accuracy for periods of 2 (Slattery and Jacobs, 1995) to 10 years (Blair et al, 1991). Reporting errors in historical activity patterns would appear to be more problematic for the quantitative aspects (i.e., frequency, intensity, duration of activity), but less so for the dichotomous assessment of exercise (i.e., yes/no) as used in the present study.…”

mentioning

confidence: 68%

Lifetime physical activity and breast cancer risk in the Shanghai Breast Cancer Study

et al. 2001

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Frisch and colleagues (1985) reported that women who did not participate in collegiate athletics were at 1.86 times greater risk of breast cancer relative to collegiate athletes, 82% of whom were physically active in adolescence and 74% of whom maintained high physical activity levels into adulthood. Most subsequent studies have provided evidence for a reduced risk of breast cancer among women with high levels of physical activity (Friedenreich et al, 1998b). Inconsistencies in previous studies may be partly due to inadequate measures of long-term physical activity. Two recent prospective studies employing multiple measures of physical activity in adulthood have reported 20 to 50% reductions in risk (Thune et al, 1997;Rockhill et al, 1999). While case-control studies may be more susceptible to recall and selection biases, they offer the opportunity, unavailable in most prospective studies, to obtain more comprehensive assessments of lifetime physical activity.As few recent studies have done so, we have examined the effects of lifetime occupational physical activity, and the independent effects on breast cancer risk of exercise in adolescence and adulthood, both separately and together as well as changes between adolescence and adulthood. MATERIALS AND METHODSStudy design and participant recruitment. Relevant bodies approved the methodology for the Shanghai Breast Cancer Study and a detailed description of the study has been published elsewhere (Gao et al, 2000). Briefly, this was a population-based case-control study designed to recruit all incident breast cancer cases aged 25 to 64 years among permanent residents of urban Shanghai between August 1996 and March 1998. All study participants had no prior history of cancer and were alive at the time of interview. Through a rapid case-ascertainment system, supplemented by the population-based Shanghai Cancer Registry, 1602 eligible breast cancer cases were identified during the study period, and in-person interviews were completed for 1459 (91.1%) of them. The major reasons for non-participation were refusal (109 cases, 6.8%), death prior to interview (17 cases, 1.1%), and inability to locate (17 cases, 1.1%). Two senior pathologists confirmed the diagnoses.Controls were randomly selected from permanent female residents of urban Shanghai and frequency-matched to cases by age. The number of controls in each age-specific stratum was determined in advance using the age distribution of the incident breast cancer cases reported to the Shanghai Cancer Registry from 1990 to 1993. This registry, which keeps cards for all permanent residents of urban Shanghai, was used to select controls. For each age-predetermined control, a registry card for a potential control in the same 5-year age group was randomly selected. In-person interviews were completed for 1556 (90.3%) of the 1724 eligible controls identified. Only 166 (9.6%) controls refused participation and 2 (0.1%) controls were excluded because they were deceased. MeasurementsTrained interviewers used a structured questio...

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“…That approach introduces a concern relating to recall bias, and it is unclear whether the reports of smoking and pa outcomes overestimated or underestimated the true values. Studies addressing the issue have found that recall of past pa behaviour up to 30 years into the past is generally reliable, but accuracy of recall for the rigour of the activity can vary [54][55][56] . An analogous study examining recall in smoking data indicated that, although 20-year recall was reliable for smoking status, recollection of smoking amounts were less reliable 57 .…”

Section: Discussionmentioning

confidence: 99%

Socioeconomic Status and Lifestyle Behaviours in Cancer Survivors: Smoking and Physical Activity

et al. 2016

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Purpose Smoking cessation and increased physical activity (pa) have been linked to better outcomes in cancer survivors. We assessed whether socioeconomic factors influence changes in those behaviours after a cancer diagnosis. MethodsAs part of a cross-sectional study, a diverse group of cancer survivors at the Princess Margaret Cancer Centre (Toronto, ON), completed a questionnaire about past and current lifestyle behaviours and perceptions about the importance of those behaviours with respect to their health. The influence of socioeconomic indicators on smoking status and physical inactivity at 1 year before and after diagnosis were assessed using multivariable logistic regression with adjustment for clinico-demographic factors. ResultsOf 1222 participants, 1192 completed the smoking component. Of those respondents, 15% smoked before diagnosis, and 43% of those smokers continued to smoke after. The proportion of survivors who continued to smoke increased with lower education level (p = 0.03). Of the 1106 participants answering pa questions, 39% reported being physically inactive before diagnosis, of whom 82% remained inactive afterward. Survivors with a lower education level were most likely to remain inactive after diagnosis (p = 0.003). Lower education level, household income, and occupation were associated with the perception that pa had no effect or could worsen fatigue and quality of life (p ≤ 0.0001).Conclusions In cancer survivors, education level was a major modifier of smoking and pa behaviours. Lower socioeconomic status was associated with incorrect perceptions about pa. Targeting at-risk survivors by education level should be evaluated as a strategy in cancer survivorship programs.

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Reliability of Long-term Recall of Participation in Physical Activity by Middle-aged Men and Women

Cited by 129 publications

References 0 publications

Evaluation of questionnaire-based information on previous physical work loads

Evaluation of questionnaire-based information on previous physical work loads

Lifetime physical activity and breast cancer risk in the Shanghai Breast Cancer Study

Socioeconomic Status and Lifestyle Behaviours in Cancer Survivors: Smoking and Physical Activity

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