Clark B K, Peeters G M E E, Gomersall S R, Pavey T G, Brown W J
The University of Queensland, Centre for Research on Exercise Physical Activity and Health, School of Human Movement Studies, Brisbane, Australia.
The University of Queensland, Centre for Research on Exercise Physical Activity and Health, School of Human Movement Studies, Brisbane, Australia; The University of Queensland, School of Population Health, Brisbane, Australia.
Prev Med. 2014 Jul;64:1-7. doi: 10.1016/j.ypmed.2014.03.017. Epub 2014 Mar 20.
To examine changes in sitting time (ST) in women over nine years and to identify associations between life events and these changes.
Young (born 1973-78, n=5215) and mid-aged (born 1946-51, n=6973) women reported life events and ST in four surveys of the Australian Longitudinal Study on Women's Health between 2000 and 2010. Associations between life events and changes in ST between surveys (decreasers ≥2 h/day less, increasers ≥2 h/day more) were estimated using generalized estimating equations.
Against a background of complex changes there was an overall decrease in ST in young women (median change -0.48 h/day, interquartile range [IQR]=-2.54, 1.50) and an increase in ST in mid-aged women (median change 0.43 h/day; IQR=-1.29, 2.0) over nine years. In young women, returning to study and job loss were associated with increased ST, while having a baby, beginning work and decreased income were associated with decreased ST. In mid-aged women, changes at work were associated with increased ST, while retiring and decreased income were associated with decreased ST.
ST changed over nine years in young and mid-aged Australian women. The life events they experienced, particularly events related to work and family, were associated with these changes.
研究九年间女性久坐时间（ST）的变化，并确定生活事件与这些变化之间的关联。
年轻女性（出生于1973 - 1978年，n = 5215）和中年女性（出生于1946 - 1951年，n = 6973）在2000年至2010年澳大利亚女性健康纵向研究的四项调查中报告了生活事件和久坐时间。使用广义估计方程估计生活事件与各次调查之间久坐时间变化（减少者每天减少≥2小时，增加者每天增加≥2小时）之间的关联。
在复杂变化的背景下，年轻女性的久坐时间总体减少（中位数变化为 - 0.48小时/天，四分位间距[IQR] = - 2.54，1.50），中年女性的久坐时间增加（中位数变化为0.43小时/天；IQR = - 1.29，2.0），为期九年。在年轻女性中，重返校园和失业与久坐时间增加有关，而生育、开始工作和收入减少与久坐时间减少有关。在中年女性中，工作变动与久坐时间增加有关，而退休和收入减少与久坐时间减少有关。
澳大利亚年轻和中年女性的久坐时间在九年间发生了变化。她们经历的生活事件，尤其是与工作和家庭相关的事件，与这些变化有关。
