Table 4.
Stroke | |||||
---|---|---|---|---|---|
Study Years | Present | Absent | p-value | ||
N | CFR% | N | CFR% | ||
1986 / 1988 | 5 | 38.5 | 234 | 18.2 | 0.06 |
1990 / 1991 | 6 | 46.2 | 218 | 15.0 | 0.001 |
1993 / 1995 | 6 | 25.0 | 236 | 14.0 | 0.12 |
1997 / 1999 | 14 | 36.8 | 242 | 13.4 | <0.001 |
2001 / 2003 | 7 | 46.7 | 155 | 14.5 | <0.001 |
2005 | 5 | 55.6 | 97 | 12.3 | <0.001 |