The association between urban greenspace and psychological health among young adults in Addis Ababa, Ethiopia.

Journal Article (Journal Article)

Introduction

Psychological disorders are emerging as health priorities in Sub-Saharan Africa, specifically Ethiopia. Urban greenspace - parks, trees, and other vegetation integrated into urban form - may facilitate population psychological health, but is largely understudied outside high-income countries. We explore greenspace in relation to psychological health among young adults in Addis Ababa, Ethiopia.

Method

Greenspace exposure was calculated using the normalized difference vegetation index (NDVI) derived from publicly available satellite imagery (2018-2019). We used tests of spatial clustering to characterize greenspace distribution. Derived NDVI values were linked to Positive Outcomes for Orphans study participants to explore cross-sectional associations between greenspace exposure and psychological health (measured 2019-2021). Two continuous scores of psychological health were examined: total difficulties from the Strengths and Difficulties Questionnaire and depressive symptoms from the 8-item Patient Health Questionnaire. Multilevel generalized linear regression, nested by administrative units, was used to estimate the association between greenspace and psychological health. We also explored effect modification by gender and having income.

Results

We found greenspace is spatially clustered in Addis Ababa, with high greenspace density in the northeast region and low greenspace density in the center of the city. Our findings suggest residing in greener areas is associated with fewer emotional and behavioral difficulties (β = -1.89; 95% CI: -3.50, -0.29), but not significantly associated with depressive symptomology (β = -0.61; 95% CI: -2.33, 1.11). We observed stronger associations between greenspace and total difficulties among those reporting any income and among males, and for the association between greenspace and depression symptomology among males.

Conclusion

We offer initial exploration into the role of greenspace in psychological well-being in Addis Ababa, with potential implications for urban communities across Sub-Saharan Africa. Further research should continue to explore how the built and natural environment could be leveraged in similar settings to promote population psychological health.

Full Text

Duke Authors

Cited Authors

  • Zewdie, HY; Whetten, K; Dubie, ME; Kenea, B; Bekele, T; Temesgen, C; Molla, W; Puffer, ES; Ostermann, J; Hobbie, AM; Gray, CL

Published Date

  • September 2022

Published In

Volume / Issue

  • 215 / Pt 1

Start / End Page

  • 114258 -

PubMed ID

  • 36084675

Electronic International Standard Serial Number (EISSN)

  • 1096-0953

International Standard Serial Number (ISSN)

  • 0013-9351

Digital Object Identifier (DOI)

  • 10.1016/j.envres.2022.114258

Language

  • eng