The DOI matches its Crossref record; 54 of the 54 references it cites were found in a registry or an index.
Access to green space, physical activity and mental health: a twin study
Open accessAbstract
Background: Increasing global urbanisation has resulted in a greater proportion of the world's population becoming exposed to risk factors unique to urban areas, and understanding these effects on public health is essential. The aim of this study was to examine the association between access to green space and mental health among adult twin pairs. Methods: We used a multilevel random intercept model of same-sex twin pairs (4338 individuals) from the community-based University of Washington Twin Registry to analyse the association between access to green space, as measured by the Normalised Difference Vegetation Index and self-reported depression, stress, and anxiety. The main parameter of interest was the within-pair effect for identical (monozygotic, MZ) twins because it was not subject to confounding by genetic or shared childhood environment factors. Models were adjusted for income, physical activity, neighbourhood deprivation and population density. Results: When treating twins as individuals and not as members of a twin pair, green space was significantly inversely associated with each mental health outcome. The association with depression remained significant in the within-pair MZ univariate and adjusted models; however, there was no within-pair MZ effect for stress or anxiety among the models adjusted for income and physical activity. Conclusions: These results suggest that greater access to green space is associated with less depression, but provide less evidence for effects on stress or anxiety. Understanding the mechanisms linking neighbourhood characteristics to mental health has important public health implications. Future studies should combine twin designs and longitudinal data to strengthen causal inference.
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Cites
A Global Measure of Perceived Stress
Cohen, S., Kamarck, T., & Mermelstein, R. (1983) · Journal of Health and Social Behavior · doi:10.2307/2136404 · Cited by 32,807
The brief symptom inventory: an introductory report.
Derogatis, L. R., & Melisaratos, N. (1983) · Psychological Medicine · doi:10.1017/s0033291700048017 · Cited by 6,650
The Patient Health Questionnaire-2: Validity of a Two-Item Depression Screener
Kroenke, K., Spitzer, R. L., & Williams, J. B. W. (2003) · Medical Care · doi:10.1097/01.mlr.0000093487.78664.3c · Cited by 6,359
Reiss, F. (2013) · Social Science & Medicine · doi:10.1016/j.socscimed.2013.04.026 · Cited by 2,062
Handbook of Research Methods in Social and Personality Psychology
(2014) · Cambridge University Press eBooks · doi:10.1017/cbo9780511996481 · Cited by 1,942
The health benefits of urban green spaces: a review of the evidence
Lee, A. C. K., & Maheswaran, R. (2011) · Journal of Public Health · doi:10.1093/pubmed/fdq068 · Cited by 1,551
Global prevalence of anxiety disorders: a systematic review and meta-regression
Baxter, A. J., Scott, K. M., Vos, T., & Whiteford, H. A. (2013) · Psychological Medicine · doi:10.1017/s003329171200147x · Cited by 1,537
Area Deprivation and Widening Inequalities in US Mortality, 1969–1998
Singh, G. K. (2003) · American Journal of Public Health · doi:10.2105/ajph.93.7.1137 · Cited by 1,423
Morbidity is related to a green living environment
Maas, J., Verheij, R. A., de Vries, S., Spreeuwenberg, P., Schellevis, F. G., & Groenewegen, P. P. (2009) · Journal of Epidemiology and Community Health · doi:10.1136/jech.2008.079038 · Cited by 1,133
Ward Thompson, C., Roe, J., Aspinall, P., Mitchell, R., Clow, A., & Miller, D. (2012) · Landscape and Urban Planning · doi:10.1016/j.landurbplan.2011.12.015 · Cited by 1,132
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Bratman, G. N., Anderson, C. B., Berman, M. G., Cochran, B., de Vries, S., Flanders, J., Folke, C., Frumkin, H., Gross, J. J., Hartig, T., et al. (2019) · Science Advances · doi:10.1126/sciadv.aax0903 · Cited by 2,001
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“Some studies have demonstrated a benefit from green neighborhoods independent of physical activity (Cohen-Cline et al. 2015; Fan et al. 2011; Feda et al. 2015; Nielsen and Hansen 2007), and some studies have found weak or no association between nature contact and physical activity (Gubbels et al.…”
BackgroundAssociations between nature exposure and health: a review of the evidence
Jimenez, M. P., DeVille, N. V., Elliott, E. G., Schiff, J. E., Wilt, G. E., Hart, J. E., & James, P. (2021) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph18094790 · Cited by 726
Using genetic data to strengthen causal inference in observational research
Pingault, J.-B., O’Reilly, P. F., Schoeler, T., Ploubidis, G. B., Rijsdijk, F., & Dudbridge, F. (2018) · Nature Reviews Genetics · doi:10.1038/s41576-018-0020-3 · Cited by 444
Ki, D., & Lee, S. (2021) · Landscape and Urban Planning · doi:10.1016/j.landurbplan.2020.103920 · Cited by 380
Metadata
- Authors
- Cohen-Cline, H., Turkheimer, E., & Duncan, G. E.
- Venue
- Journal of Epidemiology and Community Health
- Publisher
- BMJ
- Published
- 2015-01-28
- Volume
- 69
- Issue
- 6
- Pages
- 523-529
- ISSN
- 0141-7681 (ISSN-L)
- 0143-005X
- 1470-2738
- OpenAlex
- W2119218917
- Cited by
- 384
- References
- 54
- FWCI
- 11.50
- Type
- journal article
- Language
- en
- Open access
- green
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