Høj Stine Bordier, Paquet Catherine, Caron Jean, Daniel Mark
School of Health Sciences, University of South Australia, Adelaide, Australia; Centre de recherche du Centre hospitalier de l'Université de Montréal, Montréal, Canada.
School of Health Sciences, University of South Australia, Adelaide, Australia; Faculté des Sciences de l'Administration, Université Laval, Québec, Canada.
Health Place. 2021 Mar;68:102501. doi: 10.1016/j.healthplace.2020.102501. Epub 2021 Jan 31.
Despite evidence of associations between urban green space exposure and mental health, explanatory mechanisms and the role of green space qualities remain unclear. This prospective cohort study (n = 929) examined the distinct relationships of residential public open space (POS) availability and 'greenness' with four-year trajectories of psychological distress in Montreal, Canada. Stress-buffering and main effect mechanisms were tested under the respective hypotheses that POS exposures 1) attenuate the impact of stressful events on psychological distress and 2) protect against psychological distress independently of exposure to stressful events. Results from growth mixture models indicate that residing among 'greener' POS protects against rising distress through both mechanisms. Conversely, POS availability was not associated with trajectories of distress when holding greenness constant. Findings reinforce the need to consider the quality as well as quantity of public open space in urban environments.
尽管有证据表明城市绿地接触与心理健康之间存在关联，但解释机制和绿地质量的作用仍不明确。这项前瞻性队列研究（n = 929）考察了加拿大蒙特利尔市住宅公共开放空间（POS）的可及性和“绿色度”与心理困扰四年轨迹之间的不同关系。在以下各自的假设下测试了压力缓冲和主效应机制：1）POS接触可减轻压力事件对心理困扰的影响；2）独立于压力事件接触之外预防心理困扰。增长混合模型的结果表明，居住在“更绿”的POS中可通过这两种机制预防困扰加剧。相反，在绿色度不变的情况下，POS的可及性与困扰轨迹无关。研究结果强化了在城市环境中考虑公共开放空间质量和数量的必要性。
