Table 5. Longitudinal Association of CAC Score at Baseline (n=1840) with the Presence of Myocardial Scar (n=146) at Year 10.
| Models | CAC=0 (n=1043) | CAC 1-99 (n=470) | CAC 100-399 (n=213) | CAC>=400 (n=114) | Log(CAC+1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| #
with scars/ Total* |
OR (95% CI) |
#
with scars/ Total |
OR (95% CI) |
p | #
with scars/ Total |
OR (95% CI) |
p | #
with scars/ Total |
OR (95% CI) |
p | #
with scars/ Total |
OR (95% CI) |
p | |
| Model 1 | 37/1043 | 1 (ref) | 50/470 | 2.4 (1.5,3.9) | <0.001 | 34/213 | 3.0 (1.7,5.1) | <0.001 | 25/114 | 3.3 (1.7,6.1) | <0.001 | 146/1840 | 1.2 (1.1,1.3) | <0.001 |
| Model 2 | 36/1010 | 1 (ref) | 47/460 | 2.2 (1.4,3.5) | 0.001 | 34/209 | 2.6 (1.5,4.6) | 0.001 | 24/112 | 3.1 (1.6,5.9) | 0.001 | 141/1791 | 1.2 (1.1,1.3) | <0.001 |
| Model 3 | 35/1000 | 1 (ref) | 47/451 | 2.2 (1.3,3.6) | 0.002 | 34/207 | 2.5 (1.4,4.5) | 0.001 | 24/109 | 3.2 (1.6,6.2) | 0.001 | 140/1767 | 1.2 (1.1,1.3) | <0.001 |
| Model 4 | 24/766 | 1 (ref) | 35/335 | 2.3 (1.3,4.1) | 0.004 | 23/156 | 2.2 (1.1,4.3) | 0.029 | 16/82 | 2.2 (1.0,4.8) | 0.05 | 98/1339 | 1.1 (1.0,1.3) | 0.009 |
All covariates taken from baseline (Exam 1).
Numerators and denominators include only those subjects who have all observed variables.
Log (CAC+1): CAC was log-transformed after adding 1 (due to values of 0 CAC score) for the continuous models.
Model 1: adjusted for age, gender and race/ ethnicity;
Model 2: variables in Model 1 plus systolic blood pressure, hypertension medication, total cholesterol, HDL cholesterol, lipid medication, smoking status, diabetes, GFR, household income>$50k;
Model 3: variables in Model 2 plus BMI, LV mass, LV end-diastolic volume, LV ejection fraction;
Model 4: variables in model 3 plus average of left and right distal mean common carotid artery intimal media thickness