Table 2

Cardiovascular event rates per million person-days (number of events), by quintile of average of previous 3 days black smoke and quintile of baseline fibrinogen

Black smoke quintiles: mean values (μg/m3Fibrinogen quintiles : mean values (g/l)
1.872.312.6433.76
2.6347  (10)38  (8)44  (9)57  (11)97  (18)
4.9433 (7)39 (8)63 (13)98 (19)107 (20)
6.9751 (11)47 (10)38 (8)96 (19)105 (20)
9.9460 (13)52 (11)67 (14)111 (22)83 (16)
19.2947 (10)14 (3)53 (11)71 (14)152 (29)