Individual and Neighborhood Socioeconomic Status and the Association between Air Pollution and Cardiovascular Disease

http://dx.doi.org/10.1289/EHP199



Table 3. Number of cardiovascular events by quartiles of first PM2.5 prediction.
No. of participants or events Total Quartiles of PM2.5 (μg/m3)
< 10.8
n (%)
10.8–12.4
n (%)
12.5–14.8
n (%)
> 14.9
n (%)
Note: The first available PM2.5 is not the time-weighted average exposure used in models. For most participants, the first available PM2.5 prediction was the baseline prediction; otherwise, the next available non-missing PM2.5 prediction was used.
PM2.5, fine particulate matter.
No. of participants 51,754 12,939 12,938 12,939 12,938
No. of events 1,737 (3.4) 415 (3.2) 431 (3.3) 398 (3.1) 493 (3.8)