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Table 2 Logistic regression model estimating effects of age, sex, BP, with age-BP interaction on TIA/minor stroke

From: Systolic blood pressure as a predictor of transient ischemic attack/minor stroke in emergency department patients under age 80: a prospective cohort study

Variable B SE p OR 95% CI
Systolic model
 Sex (male vs. female) 0.59 0.15 < 0.001 1.81 1.36–2.41
 Age (< 60 vs. 60–79 years) −0.21 1.40 0.880 0.81 0.05–12.67
 Age (≥80 vs. 60–79 years) 4.06 0.97 < 0.001 58.09 8.71–387.53
 Systolica 0.21 0.05 < 0.001 1.23 1.11–1.35
 Systolica: Age (< 60 vs. 60–79 years) − 0.04 0.10 0.671 0.96 0.80–1.16
 Systolica: Age (≥80 vs. 60–79 years) − 0.21 0.06 < 0.001 0.81 0.72–0.91
  (Intercept) −2.76 0.72 < 0.001   
Diastolic model
 Sex (male vs. female) 0.59 0.15 < 0.001 1.80 1.35–2.40
 Age (< 60 vs. 60–79 years) 0.84 1.37 0.542 2.31 0.15–34.17
 Age (≥80 vs. 60–79 years) 4.13 0.98 < 0.001 62.13 9.03–427.61
 Diastolica 0.29 0.08 < 0.001 1.34 1.14–1.58
 Diastolica: Age (< 60 vs. 60–79 years) −0.21 0.16 0.177 0.81 0.59–1.10
 Diastolic*: Age (≥80 vs. 60–79 years) −0.39 0.12 < 0.001 0.68 0.54–0.85
  (Intercept) −2.18 0.72 0.002   
  1. CI confidence interval; OR odds ratio; SE standard error.
  2. aPer 10 mmHg. In these models, the reference group for age is 60–79 years