Do low-income neighbourhoods have the least green space? A cross-sectional study of Australia’s most populous cities

BMC Public Health

Research Article

Xiaoqi Feng¹  Thomas Astell-Burt²  Suzanne Mavoa³  Billie Giles-Corti³  Hannah M Badland³ 

[1] Centre for Health Research, School of Medicine, University of Western Sydney, Sydney, Australia;School of Science and Health, University of Western Sydney, Sydney, Australia;School of Geography and Geosciences, University of St Andrews, St Andrews, UK;The McCaughey VicHealth Centre for Community Wellbeing, School of Population and Global Health, University of Melbourne, Melbourne, Australia;

关键词: Australia;    Environment;    Green space;    Health;    Income;    Inequity;    Neighbourhood;    Public open space;   

DOI  :  10.1186/1471-2458-14-292

 received in 2013-05-28, accepted in 2014-03-27,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundAn inequitable distribution of parks and other ‘green spaces’ could exacerbate health inequalities if people on lower incomes, who are already at greater risk of preventable diseases, have poorer access.MethodsThe availability of green space within 1 kilometre of a Statistical Area 1 (SA1) was linked to data from the 2011 Australian census for Sydney (n = 4.6 M residents); Melbourne (n = 4.2 M); Brisbane (n = 2.2 M); Perth (n = 1.8 M); and Adelaide (n = 1.3 M). Socioeconomic circumstances were measured via the percentage population of each SA1 living on < $21,000 per annum. Negative binomial and logit regression models were used to investigate association between the availability of green space in relation to neighbourhood socioeconomic circumstances, adjusting for city and population density.ResultsGreen space availability was substantively lower in SA1s with a higher percentage of low income residents (e.g. an incidence rate ratio of 0.82 (95% confidence interval (95% CI) 0.75, 0.89) was observed for SA1s containing ≥20% versus 0-1% low income residents). This association varied between cities (p < 0.001). Adelaide reported the least equitable distribution of green space, with approximately 20% greenery in the most affluent areas versus 12% availability in the least affluent. Although Melbourne had a smaller proportion of SA1s in the top quintile of green space availability (13.8%), the distribution of greenery was the most equitable of all the cities, with only a 0.5% difference in the availability of green space between SA1s containing 0-1% low income households versus those with ≥20%. Inequity of access, however, was reported across all cities when using logit regression to examine the availability of at least 20% (odds ratio 0.74, 95% CI 0.59, 0.93) or 40% (0.45, 0.29, 0.69) green space availability in the more disadvantaged versus affluent neighbourhoods.ConclusionAffirmative action on green space planning is required to redress the socioeconomic inequity of access to this important public health resource.

【 授权许可】

CC BY   
© Astell-Burt et al.; licensee BioMed Central Ltd. 2014