Abstract
BackgroundThe association between time spent walking and risk of diabetes was investigated in a Japanese population-based cohort.MethodsData from the Japan Public Health Center-based Prospective Diabetes cohort were analyzed. The surveys of diabetes were performed at baseline and at the 5-year follow-up. Time spent walking per day was assessed using a self-reported questionnaire (<30 minutes, 30 minutes to <1 hour, 1 to <2 hours, or ≥2 hours). A cross-sectional analysis was performed among 26 488 adults in the baseline survey. Logistic regression was used to examine the association between time spent walking and the presence of unrecognized diabetes. We then performed a longitudinal analysis that was restricted to 11 101 non-diabetic adults who participated in both the baseline and 5-year surveys. The association between time spent walking and the incidence of diabetes during the 5 years was examined.ResultsIn the cross-sectional analysis, 1058 participants had unrecognized diabetes. Those with time spent walking of <30 minutes per day had increased odds of having diabetes in relation to those with time spent walking of ≥2 hours (adjusted odds ratio [OR] 1.23; 95% CI, 1.02–1.48). In the longitudinal analysis, 612 participants developed diabetes during the 5 years of follow-up. However, a significant association between time spent walking and the incidence of diabetes was not observed.ConclusionsIncreased risk of diabetes was implied in those with time spent walking of <30 minutes per day, although the longitudinal analysis failed to show a significant result.
Highlights
Physical activity (PA) is an important modifiable risk factor for diabetes.[1]
We investigated the association between time spent walking and risk of diabetes in the Japan Public Health Center-based Prospective (JPHC) Diabetes cohort, which consists of registered inhabitants in 10 public health center (PHC) areas across Japan
Across the walking time categories, significant trends were observed in sex ratio, the proportion of participants with family history of diabetes, Body mass index (BMI), systolic blood pressure (BP), diastolic BP, fasting plasma glucose (FPG) levels, and hemoglobin A1c (HbA1c) levels
Summary
Physical activity (PA) is an important modifiable risk factor for diabetes.[1]. A number of observational studies[2,3,4,5,6,7] have reported that sedentary lifestyles are associated with increased risk of diabetes. The association between time spent walking and risk of diabetes was investigated in a Japanese population-based cohort. We performed a longitudinal analysis that was restricted to 11 101 non-diabetic adults who participated in both the baseline and 5-year surveys. The association between time spent walking and the incidence of diabetes during the 5 years was examined. Results: In the cross-sectional analysis, 1058 participants had unrecognized diabetes Those with time spent walking of
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