The association between neighborhood greenness and weight status: an observational study in Perth Western Australia

Table 3 Odds ratios (OR) and 95% confidence intervals (CI) for being classified as obese for differences in neighborhood greenness among 10,208 adults resident in Perth, Western Australia who responded to the Health and Wellbeing Survey 2004-2009

Population		Unadjusted OR (95% CI)	Adjusted^aOR (95% CI)
All adults	Mean greenness in 1600 m service area ^b
16+ years	Low	1	1
	Moderate	0.93 (0.82, 1.05)	0.92 (0.82, 1.04)
	High	0.77 (0.68, 0.87)	0.78 (0.69, 0.89)
	Variation in greenness in 1600 m service area ^c
	Low	1	1
	Moderate	0.80 (0.71, 0.90)	0.81 (0.72, 0.92)
	High	0.73 (0.64, 0.82)	0.75 (0.66, 0.85)
Young adults	Mean greenness in 1600 m service area ^b
16-24 years	Low	1	1
	Moderate	0.40 (0.22, 0.74)	0.42 (0.22, 0.78)
	High	0.54 (0.31, 0.95)	0.60 (0.34, 1.06)
	Variation in greenness in 1600 m service area ^c
	Low	1	1
	Moderate	0.84 (0.49, 1.45)	0.84 (0.48, 1.47)
	High	0.60 (0.33, 1.09)	0.63 (0.34, 1.17)
Mid-age adults	Mean greenness in 1600 m service area ^b
25-64 years	Low	1	1
	Moderate	1.04 (0.90, 1.21)	1.01 (0.87, 1.17)
	High	0.82 (0.70, 0.95)	0.82 (0.71, 0.96)
	Variation in greenness in 1600 m service area ^c
	Low	1	1
	Moderate	0.78 (0.68, 0.91)	0.80 (0.69, 0.93)
	High	0.71 (0.61, 0.82)	0.76 (0.66, 0.89)
Older adults	Mean greenness in 1600 m service area ^b
65+ years	Low	1	1
	Moderate	0.78 (0.62, 0.98)	0.77 (0.61, 0.98)
	High	0.69 (0.55, 0.87)	0.73 (0.57, 0.92)
	Variation in greenness in 1600 m service area ^c
	Low	1	1
	Moderate	0.86 (0.68, 1.08)	0.91 (0.72, 1.15)
	High	0.78 (0.62, 0.98)	0.84 (0.66, 1.07)

^a Risk/protective factors: age, sex, education, fruit and vegetable intake, smoking.
^b Tertiles for mean greenness: Low (mean NDVI < 0.066, reference level), Moderate (0.067 ≤ mean NDVI ≤ 0.094), High (mean NDVI > 0.094).
^c Tertiles for variation in greenness: Low (SD NDVI < 0.097, reference level), Moderate (0.097 ≤ SD NDVI ≤ 0.109), High (SD NDVI > 0.109).
Bold text indicates statistical significance at the 5% (α) level.

ISSN: 1476-069X