Department of Community Health Sciences, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA 90095, USA.
J Epidemiol Community Health. 2013 Feb;67(2):153-8. doi: 10.1136/jech-2012-201537. Epub 2012 Aug 22.
Little is known about how a neighbourhood's unemployment history may set the stage for depressive symptomatology. This study examines the effects of urban neighbourhood unemployment history on current depressive symptoms and subsequent symptom trajectories among residentially stable late middle age and older adults. Contingent effects between neighbourhood unemployment and individual-level employment status (ie, cross-level interactions) are also assessed.
Individual-level survey data are from four waves (2000, 2002, 2004 and 2006) of the original cohort of the nationally representative US Health and Retirement Study. Neighbourhoods are operationalised with US Census tracts for which historical average proportion unemployed between 1990 and 2000 and change in proportion unemployed between 1990 and 2000 are used to characterise the neighbourhood's unemployment history. Hierarchical linear regressions estimate three-level (time, individual and neighbourhood) growth models.
Symptoms in 2000 are highest among those residing in neighbourhoods characterised by high historical average unemployment beginning in 1990 and increasing unemployment between 1990 and 2000, net of a wide range of socio-demographic controls including individual-level employment status. These neighbourhood unemployment effects are not contingent upon individual-level employment status in 2000. 6-year trajectories of depressive symptoms decrease over time on average but are not significantly influenced by the neighbourhood's unemployment history.
Given the current US recession, future studies that do not consider historical employment conditions may underestimate the mental health impact of urban neighbourhood context. The findings suggest that exposure to neighbourhood unemployment earlier in life may be consequential to mental health later in life.
关于一个社区的失业历史如何为抑郁症状奠定基础,人们知之甚少。本研究考察了城市社区失业历史对居住稳定的中老年成年人当前抑郁症状和随后症状轨迹的影响。还评估了社区失业与个体就业状况之间的偶然影响(即跨层次相互作用)。
个体水平的调查数据来自美国具有全国代表性的健康与退休研究的原始队列的四个波次(2000 年、2002 年、2004 年和 2006 年)。社区采用美国人口普查区进行操作,其中 1990 年至 2000 年期间的历史平均失业率和 1990 年至 2000 年期间的失业率变化用于描述社区的失业历史。分层线性回归估计三水平(时间、个体和社区)增长模型。
2000 年的症状在那些居住在以 1990 年开始且失业率在 1990 年至 2000 年间增加的高历史平均失业率为特征的社区中的个体中最高,控制了广泛的社会人口统计学因素,包括个体就业状况。这些社区失业效应不受个体在 2000 年的就业状况的影响。抑郁症状的 6 年轨迹平均随时间下降,但不受社区失业历史的显著影响。
鉴于当前美国经济衰退,如果未来的研究不考虑历史就业条件,可能会低估城市社区环境对心理健康的影响。研究结果表明,早年接触社区失业可能会对晚年的心理健康产生影响。