Table 2.

Regression coefficients (95% CIs) of change in personal exposure and microenvironmental pollutant levels (μg/m³) associated with an IQR^a increase in the average NDVI within the buffers of 100 m, 250 m, and 500 m around maternal residential addresses.

Surrounding greenness
100-m buffer			250-m buffer			500-m buffer
Measurements	Regression coefficient (95% CI)	p-Value	Regression coefficient (95% CI)	p-Value	Regression coefficient (95% CI)	p-Value
Personal (unadjusted)
PM2.5		–5.2 (–9.4, –0.9)		0.02		–2.4 (–5.0, 0.1)		0.06		–2.8 (–5.8, 0.3)		0.08
NOx		–2.6 (–15.3, 10.1)		0.68		–2.3 (–9.7, 5.1)		0.54		–3.2 (–12.4, 6.0)		0.49
Personal (adjusted)b
PM2.5		–5.9 (–10.0, –1.8)		< 0.01		–2.4 (–4.8, 0.0)		0.05		–2.3 (–5.1, 0.5)		0.11
NOx		–5.1 (–18.6, 8.4)		0.45		–3.0 (–10.7, 4.6)		0.43		–3.6 (–12.9, 5.7)		0.44
Home-indoorc
PM2.5		–6.1 (–10.6, –1.6)		< 0.01		–1.9 (–4.6, 0.8)		0.17		–2.3 (–5.5, 0.9)		0.15
NOx		–9.5 (–24.4, 5.3)		0.20		–4.5 (–13.3, 4.2)		0.31		–6.7 (–17.3, 3.9)		0.21
Home-outdoord
PM2.5		–4.4 (–9.5, 0.7)		0.08		–3.2 (–6.6, 0.2)		0.07		–5.5 (–10.5, –0.4)		0.04
NOx		–5.8 (–17.6, 6.0)		0.33		–5.3 (–14.0, 3.4)		0.23		–5.6 (–19.5, 8.3)		0.43
a0.049 for 100 m buffer, 0.031 for 250 m buffer, and 0.042 for 500 m buffer. bAdjusted for the time spent at home (sum of time spent at home-indoor and home-outdoor), smoking (active and passive), use of gas-cooking appliances, time spent in transfer, and MEDEA index of neighborhood deprivation. cAdjusted for the temperature at home-indoors on the first day of sampling round, the use of gas-cooking appliances, smoking (active and passive), the number of inhabitants, and MEDEA index of neighborhood deprivation. dAdjusted for the traffic intensity in the buffer of 100 m around maternal residential address, the height of the monitor, and MEDEA index of neighborhood deprivation.