Table 1.
Associations between potential triggers and ischaemic stroke, stratified by Aetiological and Oxfordshire Community Stroke Project classificationsa
| Anger or emotional upset |
Heavy physical exertion |
|||||
|---|---|---|---|---|---|---|
| Prevalence | OR (99% CI) | P int | Prevalence | OR (99% CI) | P int | |
| Overall | 9.2% (1233) | 1.22 (1.00–1.49) | – | 5.3% (708) | 0.89 (0.69–1.14) | – |
| Aetiological classification | ||||||
| Large vessel | 8.2% (174) | 0.67 (0.42–1.08) | <0.001 | 4.7% (99) | 0.62 (0.37–1.03) | 0.166 |
| Small vessel | 7.0% (278) | 1.05 (0.73–1.51) | 4.0% (162) | 0.85 (0.55–1.32) | ||
| Cardioembolic | 12.5% (150) | 1.47 (0.88–2.43) | 5.8% (69) | 1.36 (0.69–2.69) | ||
| Other | 12.5% (96) | 2.53 (1.30–4.90) | 3.2% (25) | 0.75 (0.25–2.21) | ||
| OCSP classification | ||||||
| Total anterior circulation | 9.0% (60) | 1.76 (0.79–3.93) | 0.720 | 4.5% (30) | 0.83 (0.28–2.50) | 0.427 |
| Partial anterior circulation | 8.6% (416) | 0.99 (0.73–1.34) | 4.6% (224) | 1.03 (0.71–1.50) | ||
| Posterior circulation | 10.4% (155) | 1.41 (0.87–2.29) | 5.0% (75) | 0.48 (0.26–0.89) | ||
| Lacunar | 7.7% (213) | 1.32 (0.87–2.02) | 4.0% (110) | 1.01 (0.61–1.67) | ||
CI, confidence interval; OCSP, Oxfordshire Community Stroke Project; OR, odds ratio.
a
Adjusted for other trigger (heavy physical exertion or anger/emotional upset) and interaction between heavy physical exertion and anger/emotional upset in case period.