Validity and Reliability of Single-item Questions about Physical Activity.

Iwai, Nobuo; Hisamichi, Shigeru; Hayakawa, Norihiko; Inaba, Yutaka; Nagaoka, Tadashi; Sugimori, Hiroki; Seki, Nao; Sakata, Kiyomi; Suzuki, Kôji; Tamakoshi, Akiko; Nakamura, Yosikazu; Yamamoto, Akio; Nishino, Yoshikazu; Ogihara, Atsushi; Okamoto, Naoyuki; Sano, Hiroshi; Morioka, Shigefumi; Ito, Yoshinori; Wakai, Kenji; Ojima, Toshiyuki; Tanaka, Heizo; Nose, Takayuki; Ohno, Yoshiyuki

doi:10.2188/jea.11.211

Cited by 65 publications

(58 citation statements)

References 23 publications

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“…The RRs were adjusted for age (as a continuous variable), sex, area (Hokkaido and Tohoku, Kanto, Chubu, Kinki, Chugoku, or Kyushu), educational level (attended school until the age of V15, 16-18, or z19 years), family history of colorectal cancer in parents and/or siblings (yes or no), alcohol consumption [never drink, ex-drinkers, or current drinkers who consume <2 or z2 Japanese drinks (<46 g or z46 g of ethanol) per day for men, and never drink, ex-drinkers, or current drinkers for women], smoking (never smoke, ex-smokers, or current smokers), BMI (<20.0, 20.0-24.9, or z25.0 kg/m 2 ), daily walking habits (V30 or >30 min/day), exercise (seldom or never, or 1-2, 3-4, or z5 h a week), sedentary work (yes or no), consumption of beef (almost never, 1-2 times a month, 1-2 times a week, z3 times a week) and pork (almost never, 1-2 times a month, 1-2 times a week, z3 times a week), energy intake (as a continuous variable), and energy-adjusted intakes of folate, calcium, and vitamin D (sex-specific quartile for each). We considered walking time because that was the major physical activity in the study population (43). The RRs and 95% CIs were also computed for colon, rectal, and colorectal cancer among men, women, and both sexes combined.…”

Section: Methodsmentioning

confidence: 99%

Dietary Fiber and Risk of Colorectal Cancer in the Japan Collaborative Cohort Study

Wakai

Date

Fukui

et al. 2007

Cancer Epidemiology, Biomarkers &Amp; Prevention

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To examine the association of dietary fiber with the risk of colorectal cancer in a population with a high incidence of cancer and a low fiber intake, we analyzed the data from the Japan Collaborative Cohort Study. From 1988to 1990 men and women aged 40 to 79 years completed a questionnaire on dietary and other factors. Intake of dietary fiber was estimated using a food frequency questionnaire. Rate ratios (RR) were computed by fitting proportional hazards models. During the mean follow-up of 7.6 years, 443 colorectal cancer cases were recorded. In all participants, we found a decreasing trend in risk of colorectal cancer with increasing intake of total dietary fiber; the multivariate-adjusted RRs across quartiles were 1.00, 0.96 [95% confidence interval (95% CI), 0.72-1.27], 0.72 (0.53-0.99), and 0.73 (0.51-1.03; P trend = 0.028). This trend was exclusively detected for colon cancer: the corresponding RRs were 1.00, 0.90 (95% CI, 0.64-1.26), 0.56 (0.38-0.83), and 0.58 (0.38-0.88; P trend = 0.002). The decrease in RRs with increasing intake of dietary fiber was larger in men than in women. No material differences appeared in the strength of associations with the risk between water-soluble and insoluble dietary fiber. For food sources of fiber, bean fiber intake was somewhat inversely correlated with colorectal cancer risk. This prospective study supported potential protective effects of dietary fiber against colorectal cancer, mainly against colon cancer. The role of dietary fiber in the prevention of colorectal cancer seems to remain inconsistent, and further investigations in various populations are warranted. (Cancer Epidemiol Biomarkers Prev 2007;16(4):668 -75)

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Section: Methodsmentioning

confidence: 99%

Dietary Fiber and Risk of Colorectal Cancer in the Japan Collaborative Cohort Study

Wakai

Date

Fukui

et al. 2007

Cancer Epidemiology, Biomarkers &Amp; Prevention

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“…The validity was estimated in a random sample of cohort participants by comparing questionnaire responses with the time spent on the activity and the energy expenditure index for the precious 12-month period, with the Spearman's rank correlation coefficients ranging from 0.43 to 0.60. 38 The weighed kappa coefficients ranged from 0.39 to 0.56, showing fair reliability. Data on smoking status were obtained at baseline and current smokers reported the average number of cigarettes smoked each day.…”

Section: Measures Of Obesity Physical Activity and Lifestyle Factorsmentioning

confidence: 97%

Obesity, physical activity and the risk of pancreatic cancer in a large Japanese cohort

Lin

Kikuchi

Tamakoshi

et al. 2007

Intl Journal of Cancer

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It is unclear whether body mass index (BMI) and physical activity are associated with the risk of pancreatic cancer in Asian populations. We examined these associations in the Japanese Collaborative Cohort Study for Evaluation of Cancer Risk. Our cohort study included 110,792 Japanese men and women at enrollment (1988)(1989)(1990). Data on height, body weight (at baseline and at age 20 years) and physical activity were obtained from a questionnaire. Cox proportional hazards models were used to estimate the relative risks of pancreatic cancer mortality. We observed a total of 402 pancreatic cancer deaths during the follow-up period. Men with a BMI of 30 or more at age 20 years had a 3.5-fold greater risk compared with men with a normal BMI. Women with a BMI of 27.5-29.9 at baseline had 60% increased risk compared with women with a BMI of 20.0-22.4. In men, weight loss of 5 kg or more between 20 years of age and baseline age was associated with an increased risk of pancreatic cancer death. In contrast, women with weight loss of 5 kg or more over the same period had a decreased risk. Physical activity was not associated with pancreatic cancer risk in either men or women. Obesity in young adulthood may be associated with an increased risk of death from pancreatic cancer in Japanese men. The risk of pancreatic cancer in relation to BMI seems to differ according to sex and the period over which BMI was measured. ' 2007 Wiley-Liss, Inc.Key words: body mass index; physical activity; pancreatic cancer; obesity; relative risk; cohort study Pancreatic cancer is the fifth leading cause of cancer-related death in Japan, accounting for 20,000 deaths each year. 1 The etiology of pancreatic cancer remains largely unknown. Although epidemiological studies have reported that many environmental factors may contribute to the development of pancreatic cancer, only age and cigarette smoking have been established as consistent risk factors for the disease. 2 The association between diabetes and pancreatic cancer is less consistent, although epidemiological evidence strongly suggests that long-standing diabetes is also a risk factor for pancreatic cancer. [3][4][5][6][7][8][9] Recently, several studies have shown a positive association between post-load plasma glucose concentration and pancreatic cancer risk, [10][11][12] suggesting that impaired glucose tolerance and insulin resistance may have a role in the etiology of pancreatic cancer. As there is an established link between obesity and significant metabolic abnormalities such as glucose intolerance, 13,14 a positive association between obesity and pancreatic cancer seems possible. However, there are conflicting epidemiological findings on the link between obesity and risk of pancreatic cancer. Several large prospective studies carried out in the U.S.A. have demonstrated that overweight and obese subjects have an increased risk of pancreatic cancer compared with normal weight subjects, 15-17 whereas other studies did not observe this association. [18][19][20][21] A meta-analysis c...

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“…The selection of a physical activity questionnaire, among those that are available, depends on several factors such as availability of human and financial resources, measure temporality (for example, last day, week, month or last three months, year, typical week), domains to be measured, method of application, purposes and characteristics of the target population, instrument size, way to express the final result (score, minutes / week MET / minutes per day or week, kcal / kg / day), reproducibility and validity levels 1 . In population surveys on health, simplified questionnaires have often been used due to the limited number of questions and easy implementation, requiring less human and financial resources, and the possibility of being easily incorporated into the data collection instrument [3][4][5] . In general, these instruments are composed of one or two questions related to physical activity practice recommendations for a given population group [3][4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

“…In population surveys on health, simplified questionnaires have often been used due to the limited number of questions and easy implementation, requiring less human and financial resources, and the possibility of being easily incorporated into the data collection instrument [3][4][5] . In general, these instruments are composed of one or two questions related to physical activity practice recommendations for a given population group [3][4][5][6] . It allows identifying people who meet or not a certain level of practice 4,5,[7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

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Prevalência de níveis suficientes de atividade física em adolescentes: comparação entre a medida obtida de um questionário simplificado e a de um detalhado

Júnior

Barbosa

Mendes

et al. 2016

Rev. Bras. Cineantropom. Desempenho Hum.

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-This study aimed was to compare the prevalence of sufficient levels of physical activity produced by a measure of the simplified questionnaire compared to a detailed questionnaire and analyze the concordances between these measures in adolescents. This is cross-sectional study with 2,859 adolescents high school students (57.8% female, 14-19 years old), from the city of João Pessoa (PB), Northeast, Brazil. Physical activity was measured by two questionnaires: a simplified instrument, containing a single question and a detailed questionnaire. Adolescents engaging in physical activity ≥300 minutes/ week were classified as sufficiently physically active. Agreement between the two measures was evaluated by the Kappa statistic (k) and sensitivity and specificity measures using the results of the detailed questionnaire as reference. The prevalence of adequate levels of physical activity was lower in the simplified questionnaire (20.1%; 95%CI: 18.6-21.6) compared to the detailed questionnaire (50.2%; 95%CI: 48.4-52.7). Inter-questionnaire agreement was slight (almost all with k<0.30). Sensitivity of the simplified questionnaire was low (from 26.4%, 95%CI: 22.9-30.0; to 40.9%, 95%CI: 37.0-45.0), and specificity was high (from 92.3%, 95%CI: 86.9-96.0; to 94.3%, 95%CI: 92.0-96.1). Conclusions: the agreement between the prevalence of sufficient levels of physical activity measured by a simplified and detailed questionnaire was low. Simplified questionnaires should be used with caution because they can underestimate the prevalence of levels of physical activity in adolescents.Key words: Adolescent; Motor activity; Sensitivity; Specificity. (20,1%, IC95%: 18,(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)6) foi inferior a do questionário detalhado (50,2%, IC95%: 48,7). A concordância entre as medidas dos questionários foi leve (k variando de 0,21 a 0,34). A sensibilidade da medida de atividade física do questionário simplificado foi baixa (variou de 26,4%, IC95%: 22,0; a 40,9%, IC95%: 37,0) e a especificidade alta (variou de 92,3%, IC95%: 86,0; a 94,3%, IC95%: 92,1

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Validity and Reliability of Single-item Questions about Physical Activity.

Cited by 65 publications

References 23 publications

Dietary Fiber and Risk of Colorectal Cancer in the Japan Collaborative Cohort Study

Dietary Fiber and Risk of Colorectal Cancer in the Japan Collaborative Cohort Study

Obesity, physical activity and the risk of pancreatic cancer in a large Japanese cohort

Prevalência de níveis suficientes de atividade física em adolescentes: comparação entre a medida obtida de um questionário simplificado e a de um detalhado

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