Table 4. Association of silent brain infarction with age and laser speckle flowgraphy findings.
Age (years) | Tissue BOT | Number of patients | Percentage of SBI | P value |
---|---|---|---|---|
≧61 | ≦42.0 | 10 | 40.0% (4/10) | <.001** |
>42.0 | 24 | 29.2% (7/24) | ||
<61 | ≦42.0 | 1 | 100.0% (1/1) | |
>42.0 | 52 | 5.8% (3/52) |
Chi-square test
BOT = blowout time, SBI = silent brain infarction