. 2012 Apr 27;7(4):e35923. doi: 10.1371/journal.pone.0035923

Table 4. Hazard ratios of stroke, cardiovascular events, and all vascular events among the ER dizziness/vertigo patients and patients without dizziness/vertigo stratified by time; 240 vascular events in the first year of follow-up and 266 vascular events between 2^nd and 3^rd years.

Variables	Events in the 1^st year				Events between 2^nd and 3^rd years
	No. of events	Hazard ratio^*	95% CI	p value	No. of events	Hazard ratio^*	95% CI	p value
*Stroke*
Patient without dizziness/vertigo	131	1.00	–	–	157	1.00	-	-
Dizziness/vertigo patients	20	2.07	1.29–3.34	0.003	13	1.08	0.61–1.92	0.781
*Cardiovascular events*
Patient without dizziness/vertigo	82	1.00	-	-	87	1.00	-	-
Dizziness/vertigo patients	10	1.94	1–3.76	0.051	10	1.72	0.89–3.34	0.107
*All vascular events*
Patient without dizziness/vertigo	211	1.00	-	-	243	1.00	-	-
Dizziness/vertigo patients	29	2.00	1.35–2.96	0.001	23	1.31	0.85–2.02	0.216

Abbreviation: 95% CI, 95% confidence interval.

Adjusted for age, gender, hypertension, diabetes, coronary heart disease, hyperlipidemia, atrial fibrillation, urbanization of residence, individual socioeconomic status and medication.

Table 4. Hazard ratios of stroke, cardiovascular events, and all vascular events among the ER dizziness/vertigo patients and patients without dizziness/vertigo stratified by time; 240 vascular events in the first year of follow-up and 266 vascular events between 2nd and 3rd years.

Table 4. Hazard ratios of stroke, cardiovascular events, and all vascular events among the ER dizziness/vertigo patients and patients without dizziness/vertigo stratified by time; 240 vascular events in the first year of follow-up and 266 vascular events between 2^nd and 3^rd years.