Table 2
Door–needle times
Total (n=297)
1st study period (n=169)
2nd study period (n=128)
p Values
Mean
69 min
69 min
71 min
0.759*
Median
50 min
54 min
48 min
<30 min
73 (25%)
42 (25%)
31 (24%)
0.931
*
Independent samples t test.