Table 4 Case Crossover Analysis
Vertebral Artery Dissection | Carotid Artery Dissection | |||||
|---|---|---|---|---|---|---|
Exposure | n | Odds Ratios (95% Confidence Interval) | P-value | n | Odds Ratios (95% Confidence Interval) | P-value |
Exposure Past 7 days | ||||||
E&M | 94 | 1.00 | 88 | 1.00 | ||
Neither CSM nor E&M in 7 days | 51 | 0.20 (0.12–0.33) | < 0.001 | 30 | 0.31 (0.20–0.49) | < 0.001 |
CSM in prior 7 days | 4,411 | 1.59 (0.65–3.85) | 0.31 | 5,824 | 0.48 (0.22–1.04) | 0.06 |
Exposure past 14 days | ||||||
E&M past 14 days | 150 | 1.00 | 150 | 1.00 | ||
Neither CSM nor E&M in 14 days | 73 | 0.20 (0.14–0.31) | < 0.001 | 46 | 0.30 (0.21–0.43) | < 0.001 |
CSM in prior 14 days | 4,333 | 0.90 (0.46–1.74) | 0.75 | 5,746 | 0.38 (0.20–0.70) | 0.002 |
Exposure past 30 days | ||||||
E&M past 30 days | 205 | 1.00 | 216 | 1.00 | ||
Neither CSM nor E&M in 30 days | 89 | 0.22 (0.16–0.31) | < 0.001 | 79 | 0.41 (0.31–0.53) | < 0.001 |
CSM only in 30 days | 4,262 | 0.63 (0.36–1.11) | 0.11 | 5,647 | 0.88 (0.51–1.50) | 0.63 |