Table 3.
Primary analysis
|
Number of events |
Person-years |
Event rate (per 100 person-years) |
Adjusted for age and sex |
Adjusted for age, sex, and antiplatelet therapy |
|||
|---|---|---|---|---|---|---|---|
| Hazard ratio (95% CI) | p | Hazard ratio (95% CI) | p | ||||
| Ipsilateral stroke and TIA | |||||||
| Embolic signals absent | 22 | 713·1 | 3·09 | 1·0 | 1·0 | ||
| Embolic signals present | 10 | 135·0 | 7·40 | 2·54 (1·20–5·36) | 0·015 | 2·39 (1·12–5·11) | 0·025 |
| Ipsilateral stroke | |||||||
| Embolic signals absent | 5 | 716·3 | 0·70 | 1·0 | 1·0 | ||
| Embolic signals present | 5 | 135·6 | 3·69 | 5·57 (1·61–19·32) | 0·007 | 5·90 (1·68–20·72) | 0·006 |
| Any stroke | |||||||
| Embolic signals absent | 13 | 714·5 | 1·82 | 1·0 | 1·0 | ||
| Embolic signals present | 5 | 135·6 | 3·69 | 2·19 (0·78–6·15) | 0·14 | 2·36 (0·83–6·67) | 0·11 |
| Any stroke or cardiovascular death | |||||||
| Embolic signals absent | 31 | 714·8 | 4·34 | 1·0 | 1·0 | ||
| Embolic signals present | 6 | 135·6 | 4·43 | 1·08 (0·45–2·59) | 0·87 | 1·12 (0·46–2·71) | 0·80 |
TIA=transient ischaemic attack.