Temporal trends in non-occupational sedentary behaviours from Australian Time Use Surveys 1992, 1997 and 2006.
Temporal trends in non-occupational sedentary behaviours from Australian Time Use Surveys 1992, 1997 and 2006.
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DOI：
10.1186/1479-5868-9-76
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发表时间：
2012-06-19
期刊：
影响因子：
--
通讯作者：
van der Ploeg HP
中科院分区：
文献类型：
--
作者：
Chau JY;Merom D;Grunseit A;Rissel C;Bauman AE;van der Ploeg HP
目前的流行病学数据强调了久坐行为和健康结果之间的潜在有害关联，但对成年人久坐时间的时间趋势知之甚少。这项研究使用时间使用数据来检验人群在非职业领域的久坐行为趋势，更具体地说，是在休闲时间。我们对1992年、1997年和2006年澳大利亚时间使用调查中的人口代表性数据进行了二次分析，调查对象为20岁及以上的受访者，他们有两天的完整时间使用日记。每个调查年的加权样本分别为：n = 5851(1992年)、n = 6419(1997年)和n = 5505(2006年)。我们按领域(睡眠、职业、交通、休闲、家庭、教育)和强度(久坐、轻度、中度)记录了所有的主要活动。以2006年为参照年，对1992年和1997年非职业性久坐行为的时间差异进行了调整后的多元线性回归检验。1997年非职业性久坐时间略低于2006年(平均 = 分别为894min/2d和906min/2d；B = −为11.2；95%CI：-21.5，-0.9)。与2006年相比，1997年在久坐交通(B-6.7；95%CI：-10.4，-3.0)和久坐教育(B = −6.3；95%CI：-10.5，-2.2)上花费的时间减少，而家庭和休闲久坐时间保持稳定。从事不同类型休闲久坐活动的时间在1997年至2006年之间发生了变化：休闲时间使用电脑的时间有所增加(B = −26.7；95%CI：-29.5，-23.8)，而其他休闲时间久坐行为(例如，阅读、听音乐、爱好和手工艺)显示出小幅减少。1992年的闲暇屏幕时间少于2006年：看电视(B = −24.2；95%CI：-31.2，-17.2)，使用电脑(B = −35.3；95%CI：-37.7，-32.8)。2006年，90%的休闲时间是久坐不动的，其中53%是在屏幕前度过的。从1997年到2006年，澳大利亚成年人的非职业性久坐时间略有增加。这似乎是久坐的交通和教育时间小幅增加的结果，而久坐的家庭和休闲时间在这段时间内保持稳定。然而，几乎所有的休闲时间都是久坐不动的，在1992至2006年间，久坐休闲时间的构成发生了变化，更大比例的休闲时间是基于屏幕的活动。这对公众健康可能是一个重要的观察结果，因为大多数关于久坐行为有害影响的证据都与看电视和健康有关。
Current epidemiological data highlight the potential detrimental associations between sedentary behaviours and health outcomes, yet little is known about temporal trends in adult sedentary time. This study used time use data to examine population trends in sedentary behaviours in non-occupational domains and more specifically during leisure time. We conducted secondary analysis of population representative data from the Australian Time Use Surveys 1992, 1997 and 2006 involving respondents aged 20 years and over with completed time use diaries for two days. Weighted samples for each survey year were: n = 5851 (1992), n = 6419 (1997) and n = 5505 (2006). We recoded all primary activities by domain (sleep, occupational, transport, leisure, household, education) and intensity (sedentary, light, moderate). Adjusted multiple linear regressions tested for differences in time spent in non-occupational sedentary behaviours in 1992 and 1997 with 2006 as the reference year. Total non-occupational sedentary time was slightly lower in 1997 than in 2006 (mean = 894 min/2d and 906 min/2d, respectively; B = −11.2; 95%CI: -21.5, -0.9). Compared with 2006, less time was spent in 1997 in sedentary transport (B-6.7; 95%CI: -10.4, -3.0) and sedentary education (B = −6.3; 95%CI: -10.5, -2.2) while household and leisure sedentary time remained stable. Time engaged in different types of leisure-time sedentary activities changed between 1997 and 2006: leisure-time computer use increased (B = −26.7; 95%CI: -29.5, -23.8), while other leisure-time sedentary behaviours (e.g., reading, listening to music, hobbies and crafts) showed small concurrent reductions. In 1992, leisure screen time was lower than in 2006: TV-viewing (B = −24.2; 95%CI: -31.2, -17.2), computer use (B = −35.3; 95%CI: -37.7, -32.8). In 2006, 90 % of leisure time was spent sedentary, of which 53 % was screen time. Non-occupational sedentary time has increased slightly from 1997 to 2006 in the Australian adult population. This seems to be the result of small increases in sedentary transport and education time while sedentary household and leisure time were stable over this time period. However, almost all leisure time is spent sedentary and the composition of sedentary leisure time changed between 1992 and 2006 towards a larger proportion being screen-based activities. This could be an important observation for public health, as most of the evidence on the detrimental effects of sedentary behaviour is around watching television and health.
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5.7
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