Research Article

Benign Paroxysmal Positional Vertigo and the Increased Risk of Ischemic Stroke: A Nested Case-Control Study Using a National Cohort Sample

Table 3

Subgroup analyses of crude and adjusted odds ratios (95% confidence interval) of stroke for BPPV according to age and sex.

CharacteristicsBPPV
Crude valueAdjusted†‡ value

years old, men ()
 Ischemic stroke1.34 (1.04-1.73)0.0261.29 (0.99-1.67)0.057
 Control I1.001.00
years old, women ()
 Ischemic stroke1.87 (1.51-2.31)<0.0011.83 (1.47-2.26)<0.001
 Control I1.001.00
years old, men ()
 Ischemic stroke1.15 (0.92-1.44)0.2271.15 (0.92-1.44)0.222
 Control I1.001.00
years old, women ()
 Ischemic stroke1.28 (1.11-1.48)<0.0011.29 (1.11-1.49)<0.001
 Control I1.001.00
years old, men ()
 Hemorrhagic stroke1.13 (0.64-1.97)0. 6791.13 (0.64-1.99)0.672
 Control II1.001.00
years old, women ()
 Hemorrhagic stroke0.85 (0.56-1.29)0.4430.91 (0.60-1.38)0.660
 Control II1.001.00
years old, men ()
 Hemorrhagic stroke1.20 (0.75-1.94)0.4451.24 (0.77-2.00)0.383
 Control II1.001.00
years old, women ()
 Hemorrhagic stroke1.27 (0.95-1.68)0.1081.34 (1.00-1.79)0.048
 Control II1.001.00

Conditional logistic regression analyses, significance at . Stratified for age, sex, income, region of residence, hypertension, diabetes, and dyslipidemia. Adjusted model for chronic obstructive pulmonary disease, ischemic heart disease, peripheral vascular disease, atrial fibrillation and flutter, and depression.