Table 5.

Single pollutant linear regression results for each brain volume and pollutant.

Brain region (relative)	Pollutant	beta	95% CI	p-value	p-FDR
White Matter	NO2	−0.00004	−0.0003, 0.0001	0.68	0.96
	PM2.5	−0.0001	−0.0009, 0.0004	0.63	0.96
	PM10	−0.0001	−0.0007, 0.0003	0.69	0.96
Cortical Grey Matter	NO2	0.00006	−0.0001, 0.0003	0.52	0.96
	PM2.5	−0.00005	−0.0005, 0.0008	0.88	0.98
	PM10	0.00002	−0.00044, 0.0006	0.94	0.98
Cerebellum	NO2	−0.00005	−0.0001, 0.00003	0.27	0.81
	PM2.5	0.000002	−0.0003, 0.0002	0.99	0.99
	PM10	0.000009	−0.0003, 0.0002	0.94	0.98
Brainstem	NO2	−0.00001	−0.00001, 0.00005	0.24	0.81
	PM2.5	−0.00004	−0.00002, 0.00009	0.17	0.68
	PM10	0.00004	−0.00001, 0.00009	0.07	0.53
Ventricle	NO2	−0.00002	−0.0001, 0.00004	0.64	0.96
	PM2.5	−0.0001	−0.0001, 0.0003	0.31	0.83
	PM10	0.0001	−0.00006, 0.0003	0.09	0.53
Deep Grey Nuclei	NO2	−0.00001	−0.00004, 0.00007	0.66	0.96
	PM2.5	0.00007	−0.0001, 0.0003	0.48	0.96
	PM10	0.00003	−0.0001, 0.0002	0.69	0.96
Extracerebral CSF	NO2	0.0003	−0.0001, 0.0006	0.11	0.53
	PM2.5	0.001	0.00004, 0.002	0.02	0.24
	PM10	0.001	−0.00003, 0.0019	0.02	0.24
Amygdala & Hippocampus	NO2	−0.000006	−0.000007, 0.00001	0.76	0.96
	PM2.5	−0.000001	−0.00003, 0.00003	0.93	0.98
	PM10	−0.000003	−0.00002, 0.00002	0.76	0.96