Browsing by Author "Hsueh, Ming-Chun"

Filter results by typing the first few letters
Now showing 1 - 4 of 4
  • No Thumbnail Available
    Item
    A cut-off of daily sedentary time and all-cause mortality in adults: a meta-regression analysis involving more than 1 million participants
    (2018-05-25) Ku, Po-Wen; Steptoe, Andrew; Liao, Yung; Hsueh, Ming-Chun; Chen, Li-Jung
    Abstract Background The appropriate limit to the amount of daily sedentary time (ST) required to minimize mortality is uncertain. This meta-analysis aimed to quantify the dose-response association between daily ST and all-cause mortality and to explore the cut-off point above which health is impaired in adults aged 18–64 years old. We also examined whether there are differences between studies using self-report ST and those with device-based ST. Methods Prospective cohort studies providing effect estimates of daily ST (exposure) on all-cause mortality (outcome) were identified via MEDLINE, PubMed, Scopus, Web of Science, and Google Scholar databases until January 2018. Dose-response relationships between daily ST and all-cause mortality were examined using random-effects meta-regression models. Results Based on the pooled data for more than 1 million participants from 19 studies, the results showed a log-linear dose-response association between daily ST and all-cause mortality. Overall, more time spent in sedentary behaviors is associated with increased mortality risks. However, the method of measuring ST moderated the association between daily ST and mortality risk (p < 0.05). The cut-off of daily ST in studies with self-report ST was 7 h/day in comparison with 9 h/day for those with device-based ST. Conclusions Higher amounts of daily ST are log-linearly associated with increased risk of all-cause mortality in adults. On the basis of a limited number of studies using device-based measures, the findings suggest that it may be appropriate to encourage adults to engage in less sedentary behaviors, with fewer than 9 h a day being relevant for all-cause mortality.
  • No Thumbnail Available
    Item
    Dog ownership, dog walking, and leisure-time walking among Taiwanese metropolitan and nonmetropolitan older adults
    (2018-04-04) Liao, Yung; Huang, Pin-Hsuan; Chen, Yi-Ling; Hsueh, Ming-Chun; Chang, Shao-Hsi
    Abstract Background This study examined the prevalence of dog ownership and dog walking and its association with leisure-time walking among metropolitan and nonmetropolitan older adults. Methods A telephone-based cross-sectional survey targeting Taiwanese older adults was conducted in November 2016. Data related to dog ownership, time spent dog walking (categorized as non-dog owner, non-dog walkers, and dog walkers), and sociodemographic variables were obtained from 1074 older adults. Adjusted binary logistic regression was then performed. Results In this sample, 12% of Taiwanese older adults owned a dog and 31% of them walked their dogs for an average of 232.13 min over 5.9 days/week (standard deviation = 2.03). Older adults living in nonmetropolitan areas were more likely to own a dog (14.7% vs. 9.1%) but less likely to walk their dog (25.9% vs. 39.6%) than were those living in metropolitan areas. Compared with non-dog owners, only older adults living in nonmetropolitan areas who were dog walkers achieved 150 min of leisure-time walking (odds ratio: 3.03, 95% confidence interval: 1.05–8.77), after adjustment for potential confounders. Conclusion Older Taiwanese adults living in nonmetropolitan areas who owned and walked their dogs were more likely to achieve health-enhancing levels of leisure-time walking. Tailored physical activity interventions for promoting dog walking should be developed for older adults who are dog owners living in nonmetropolitan areas and who do not engage in dog walking.
  • No Thumbnail Available
    Item
    Personal and behavioral correlates of total and domain-specific sedentary behaviors in older Taiwanese adults
    (2018-11-29) Chang, Shao-Hsi; Hsueh, Ming-Chun; Liao, Yung
    Abstract Background Evidence of the harmful health effects of sedentary behavior is emerging; however, little is known about domain-specific sedentary behavior correlates. Thus, in this study, the personal and behavioral correlates of total and domain-specific sedentary behavior in older Taiwanese adults were identified. Method The sample comprised 1046 older adults (aged ≥65 years). Cross-sectional data on self-administered personal behavioral variables and time spent engaging in domain-specific sedentary behavior were obtained using computer-assisted telephone-based interviews. Binary logistic regression analyses were performed. Results Those aged older than 75 years were less likely to have longer total sedentary, computer use, and transportation times. Compared to women, older men were more likely to have longer total sedentary and transportation times. Older adults with low educational levels were less likely to have longer total sedentary and computer use times but were more likely to have an excessive television (TV) viewing time (≥2 h/day). Older adults who lived alone and were overweight had a longer TV viewing time. Furthermore, unemployment was associated with an excessive TV viewing time and shorter transportation time. Older adults residing in nonmetropolitan areas had lower total sedentary, TV viewing, and computer use times. Older adults who engaged in insufficient leisure time physical activity were more likely to have longer total sedentary and transportation times. Conclusions Both common and distinct personal and behavioral factors were associated with total and domain-specific sedentary behavior. Interventions for reducing total and domain-specific sedentary behavior should focus on both common and distinct subgroups of the Taiwanese older population.
  • No Thumbnail Available
    Item
    以行為流行病學架構探討高齡者久坐行為之研究
    (2017) 薛名淳; Hsueh, Ming-Chun
    久坐行為是影響高齡者健康的重要因素之一，國內久坐行為與疾病關係及關聯因素鮮少被探討。本研究根據久坐行為流行病學架構：建立行為與健康之關係、發展測量工具、找出久坐行為高危險族群以及環境決定因素等，四個研究階段分別進行探討。本研究採用橫斷性調查法及客觀測量進行資料蒐集。調查法以簡單隨機抽樣選取1,068位居住於臺北市及嘉義縣年滿65歲以上之高齡者，採以集中式電腦輔助電話訪問，蒐集社會人口背景資料、身體質量指數、慢性疾病狀況、久坐行為時間、休閒身體活動量及知覺社區環境，以二元邏輯斯迴歸計算出勝算比，以了解久坐行為與慢性疾病之風險、高危險族群及知覺社區環境關聯因素。客觀測量方面，以年滿65歲之社區高齡者為對象，實施高齡者久坐時間問卷並配戴三軸加速規測量久坐時間，以組內相關及斯皮爾曼等級相關，了解再測信度及同時效度。所得結果如下：一、整體久坐時間與六種久坐行為，僅發現長時間看電視(≥ 2 時/天) 會增加1.58倍的機率有第二型糖尿病之風險。二、中文化高齡者久坐時間問卷、休閒嗜好時間及靜態通勤時間題項有良好再測信度；看電視時間、使用電腦時間、閱讀時間和其他久坐時間為可接受再測信度；社交久坐時間再測信度為普通。久坐時間問卷與加速規之同時效度未達顯著水準。三、年齡、性別、婚姻狀態、工作狀態、教育程度、居住地區、居住狀態、身體質量指數及休閒身體活動量等不同社會人口背景因素，與整體久坐時間、看電視時間、使用電腦時間及靜態通勤時間有顯著之關係。四、高齡者居住在高密度地區及知覺社區環境交通不安全，會有較高風險比率有過量看電視時間。未來高齡者過量看電視時間會增加第二型糖尿病之風險；中文化高齡者久坐時間問卷有良好再測信度，校標關聯效度有待更多研究進一步驗證；未來減少高齡者久坐行為宜針對不同社會人口特性之高危險族群及知覺社區環境特性進行介入。