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Table 5 Possible trigger factors in patients with and without sentinel headache during 1 week before stroke

From: Sentinel headache as a warning symptom of ischemic stroke

Possible trigger factorsPatients with sentinel headache before stroke (n = 81)Patients without sentinel headache before stroke (n = 469)Р, OR, 95% CI
Аlcohol consumption15 (18.5%)77 (16.4%)0.6
Increased physical activity17 (20.9%)69 (14.7%)0.2
Psychological stress17 (20.9%)112 (23.9%)0.7
Overwork17 (20.9%)100 (21.3%)0.9
Lack of sleep12 (14.8%)83 (17.7%)0.6
Hypertonic crisis48 (59.2%)297 (63.3%)0.6
Attack of arrhythmia11 (13.6%)30 (6.4%)0.04 , 2.3; (1.1–4.8)
Overheating4 (4.9%)23 (4.9%)0.8
Clinical infection2 (2.5%)27 (5.8%)0.3
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