Category | Subcategory | Univariate analysis | Multivariable analysis | ||||
B | OR (95% CI) | P value | B | OR (95% CI) | P value | ||
Sex | Male | 1.00 (reference) | 1.00 (reference) | ||||
Female | −0.26 | 0.77 (0.58 to 1.01) | 0.053 | −0.13 | 0.87 (0.65 to 1.16) | 0.37 | |
Age (years) | 40–49 | 1.00 (reference) | 1.00 (reference) | ||||
50–59 | 0.55 | 1.74 (1.02 to 3.11) | 0.05 | 0.40 | 1.49 (0.87 to 2.70) | 0.15 | |
60–69 | 1.01 | 2.76 (1.64 to 4.88) | <0.01 | 0.92 | 2.50 (1.47 to 4.48) | <0.01 | |
70–79 | 1.51 | 4.52 (2.72 to 7.94) | <0.01 | 1.24 | 3.44 (2.01 to 6.19) | <0.01 | |
≥80 | 1.78 | 5.94 (3.33 to 10.98) | <0.01 | 1.44 | 4.20 (2.25 to 8.10) | <0.01 | |
Ethnicity | Han | 1.00 (reference) | 1.00 (reference) | ||||
Tibetan | −0.29 | 1.86 (1.40 to 2.46) | <0.01 | −0.74 | 1.68 (0.50 to 4.13) | 0.32 | |
Hui | 0.62 | 0.75 (0.39 to 1.31) | 0.35 | 0.52 | 0.93 (0.47 to 1.67) | 0.82 | |
Others | 0.51 | 1.05 (0.47 to 2.03) | 0.89 | 0.04 | 0.96 (0.43 to 1.88) | 0.92 | |
Residence | Low-altitude | 1.00 (reference) | 1.00 (reference) | ||||
Mid-altitude | 0.25 | 1.28 (0.92 to 1.81) | 0.15 | 0.41 | 1.51 (1.04 to 2.22) | 0.03 | |
High-altitude | 0.80 | 2.23 (1.56 to 3.20) | <0.01 | 0.42 | 1.52 (0.57 to 5.34) | 0.45 | |
Hypertension | No | 1.00 (reference) | 1.00 (reference) | ||||
Yes | 1.46 | 4.30 (3.15 to 6.00) | <0.01 | 1.33 | 3.78 (2.73 to 5.33) | <0.01 | |
Diabetes | No | 1.00 (reference) | 1.00 (reference) | ||||
Yes | 0.31 | 1.37 (0.97 to 1.88) | 0.06 | 0.28 | 1.32 (0.92 to 1.86) | 0.12 | |
Dyslipidaemia | No | 1.00 (reference) | |||||
Yes | 0.04 | 1.04 (0.80 to 1.36) | 0.75 | ||||
Atrial fibrillation | No | 1.00 (reference) | 1.00 (reference) | ||||
Yes | 0.97 | 2.64 (1.62 to 4.09) | <0.01 | 0.10 | 1.11 (0.65 to 1.83) | 0.67 | |
FHS | No | 1.00 (reference) | 1.00 (reference) | ||||
Yes | 0.69 | 1.98 (1.14 to 3.23) | <0.01 | 0.84 | 2.30 (1.30 to 3.84) | <0.01 | |
Smoking | No | 1.00 (reference) | 1.00 (reference) | ||||
Yes | 0.32 | 1.38 (0.94 to 1.95) | 0.09 | 0.33 | 1.50 (1.01 to 2.16) | 0.03 | |
Lack of exercise | No | 1.00 (reference) | |||||
Yes | 0.05 | 1.05 (0.76 to 1.43) | 0.75 | ||||
Overweight or obesity | No | 1.00 (reference) | 1.00 (reference) | ||||
Yes | 0.20 | 1.23 (0.94 to 1.59) | 0.13 | 0.05 | 1.05 (0.80 to 1.38) | 0.73 |
Factors with a univariate p value<0.2 were included in multivariate logistic regression.
FHS, family history of stroke .