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Table 3 Hazard ratios: Cox regression

From: The role of coronary artery calcification score in clinical practice

   All CAC score groups included CAC score group A-C included
Univariable   HR (95% CI) P-value HR (95% CI) P-value
   CAC score group A reference    reference   
  B 3.06 (1.73–5.41) <0.001 3.06 (1.73–5.41) <0.001
  C 5.44 (3.00–9.86) <0.001 5.44 (3.00–9.86) <0.001
  D 64.2 (29.4–140) <0.001 -   
Multivariable   HR (95% CI) P-value HR (95% CI) P-value
   CAC score group A reference    reference   
  B 3.28 (1.19–4.37) <0.001 2.38 (1.23–4.60) 0.01
  C 3.88 (1.86–8.11) <0.001 4.16 (1.96–8.84) <0.001
  D 51.4 (19.9–133) <0.001 -   
   Ischemia test result Negative reference    reference   
  Non-conclusive 1.84 (0.96–3.54) <0.001 2.12 (1.07–4.19) 0.03
  Positive 4.38 (2.30–8.35) <0.001 5.21 (2.65–10.3) <0.001
   Age   1.00 (0.98–1.04) 0.64 1.00 (0.97–1.03) 0.94
   Male   1.30 (0.74–2.26) 0.36 1.26 (0.70–2.29) 0.44
   Hypertension   1.09 (0.62–1.90) 0.77 1.20 (0.67–2.16) 0.55
   Diabetes   2.13 (1.02–4.45) <0.05 1.80 (0.82–3.98) 0.14
   Hypercholesterolemia   1.02 (0.59–1.75) 0.96 1.11 (0.62–1.96) 0.73
   Smoking   1.44 (0.83–2.50) 0.20 1.50 (0.83–2.68) 0.18
   Family history of CVD   1.03 (0.61–1.74) 0.91 0.98 (0.56–1.70) 0.94
  1. CAC = coronary artery calcification, CVD = cardiovascular disease. Group A: CAC score < 10; group B: CAC score 10–99; group C: CAC score 100–399; group D: CAC score ≥ 400.