Table 3 Distribution of “Onset to tPA Time” among infarct patients presenting at MHH-TMC, 2008–2011 (N=1627)
Onset to tPA Time | Year | ||||||
|---|---|---|---|---|---|---|---|
2008 | 2009 | 2010 | 2011 | Total | P-value* | ||
n (%) | n (%) | n (%) | n (%) | n (%) | |||
Received tPA | 130 (30.4) | 124 (34.6) | 153 (38.5) | 193 (44.5) | 600 (36.9) | - | |
No tPA | 297 (69.4) | 232 (64.6) | 243 (61.2) | 247 (55.8) | 1019 (62.6) | - | |
Unknown | 1 (0.2) | 3 (0.8) | 1 (0.3) | 3 (0.7) | 8 (0.5) | - | |
Total # of infarcts | 428 | 359 | 397 | 443 | 1627 | - | |
tPA | 0 min - 1 hr | 1 (0.2) | 0 (0.0) | 0 (0.0) | 1 (0.2) | 1 (0.1) | - |
61 min - 2 hr | 30 (7.0) | 34 (9.5) | 48 (12.1) | 48 (10.8) | 160 (9.8) | - | |
121 min - 3 hr | 61 (14.3) | 40 (11.2) | 58 (14.6) | 72 (16.2) | 231 (14.2) | - | |
181 min - 4.5 hr | 19 (4.4) | 37 (10.3) | 33 (8.3) | 42 (9.5) | 131 (8.1) | - | |
271 min - 6 hr | 5 (1.2) | 4 (1.1) | 2 (0.5) | 12 (2.7) | 23 (1.4) | - | |
> 6 hr | 15 (3.5) | 9 (2.5) | 12 (3.0) | 18 (4.1) | 54 (3.3) | - | |
Received tPA (Total) | 130 | 124 | 153 | 193 | 600 | - | |
Within 2 hrs. | 30 (7.24) | 34 (9.5) | 48 (12.1) | 49 (11.1) | 161 (9.9) | 0.02 | |
Within 3 hrs. | 91 (21.3) | 74 (20.6) | 106 (26.7) | 121 (27.3) | 392 (24.1) | 0.01 | |
Within 4.5 hrs. | 110 (25.7) | 111 (30.9) | 139 (35.0) | 163 (36.8) | 523 (32.2) | <0.01 | |