Table 2

Main effect of particulate matter on sICAM-1 and sVCAM-1

Pollutant measure	% Change in sVCAM-1^†	95% CI	% Change in sVCAM-1^‡	95% CI
PM_2.5 (10 μg/m³)
1-Day mean	0.91	−0.89 to 2.72	1.02	−1.10 to 3.15
2-Day mean	1.36	−0.9 to 3.62	1.73	−0.87 to 4.34
3-Day mean	−0.04	−2.66 to 2.58	0.36	−2.61 to 3.33
Black carbon (1 μg/m³)
1-Day mean	2.57	−0.11 to 5.24	2.54	−0.22 to 5.29
2-Day mean	4.26^*	1.02 to 7.49	4.52^*	1.09 to 7.96
3-Day mean	3.04	−0.85 to 6.94	3.65	−0.40 to 7.69

Pollutant measure	% Change in sICAM-1^†	95% CI	% Change in sICAM-1^‡	95% CI
PM_2.5 (10 μg/m³)
1-Day mean	−0.34	−1.66 to 0.98	−0.33	−1.89 to 1.23
2-Day mean	−0.08	−1.74 to 1.58	−0.51	−2.46 to 1.44
3-Day mean	−0.26	−2.18 to 1.66	−0.91	−3.12 to 1.30
Black carbon (1 μg/m³)
1-Day mean	−1.67	−3.63 to 0.29	−1.65	−3.68 to 0.38
2-Day mean	−1.09	−3.47 to 1.29	−1.37	−3.89 to 1.15
3-Day mean	−0.94	−3.8 to 1.93	−1.49	−4.49 to 1.52

↵* p=0.05.
↵† Estimates adjusted for season and time trends.
↵‡ Estimates adjusted for apparent temperature, age, obesity, smoking, statin use, diabetes status and season and time trends.