Table 2.
Intention-to-treat analysis of cumulative risks and hazard ratios of main outcome events
|
Stenting (n=853) |
Endarterectomy (n=857) |
Hazard ratio*(95% CI) |
Absolute risk difference (95% CI) |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of events* | Cumulative 1-year risk (SE)† | Cumulative 5-year risk (SE)† | Number of events* | Cumulative 1-year risk (SE)† | Cumulative 5-year risk (SE)† | At 1 year | At 5 years | ||
| Fatal or disabling stroke (primary outcome measure) | 52 | 3·9% (0·7) | 6·4% (0·9) | 49 | 3·2% (0·6) | 6·5% (1·0) | 1·06 (0·72 to 1·57) | 0·7% (−1·0 to 2·5) | −0·2% (−2·8 to 2·5) |
| Any stroke | 119 | 9·5% (1·0) | 15·2% (1·4) | 72 | 5·1% (0·8) | 9·4% (1·1) | 1·71 (1·28 to 2·30)‡ | 4·4% (1·9 to 6·9) | 5·8% (2·4 to 9·3) |
| Procedural stroke or procedural death or ipsilateral stroke during follow-up | 95 | 9·0% (1·0) | 11·8% (1·2) | 57 | 4·7% (0·7) | 7·2% (0·9) | 1·72 (1·24 to 2·39)§ | 4·2% (1·9 to 6·6) | 4·6% (1·6 to 7·6) |
| All-cause death | 153 | 4·9% (0·7) | 17·4% (1·5) | 129 | 2·3% (0·5) | 17·2% (1·5) | 1·17 (0·92 to 1·48) | 2·6% (0·8 to 4·4) | 0·2% (−4·0 to 4·4) |
*
Calculated as the first relevant event between randomisation and the end of follow-up.
†
Calculated from randomisation onwards.
‡
p<0·001.
§
p<0·01.