Research Article
Carotid Intima Media Thickness Reference Intervals for a Healthy Argentinean Population Aged 11–81 Years
Table 2
Comparative study of left and right common carotid intima media thickness (CIMT).
(a) Regression analysis (left CIMT: -axis, right CIMT: -axis) |
| | 0.4856 | Regression equation | | Intercept | | Coefficient | 0.1694 | SE | 0.02339 | 95% CI | 0.1234 to 0.2154 | | <0.0001 | Slope | | Coefficient | 0.7601 | SE | 0.03902 | 95% CI | 0.6834 to 0.8368 | | <0.0001 |
|
|
SE: standard error. CI: confidence interval.
|
(b) Differences (Bland & Altman) |
| | Left CIMT − right CIMT [mm] | Left − right CIMT/mean of left and right CIMT |
| Arithmetic mean | 0.029 | 4.641 | 95% CI | 0.01899 to 0.03933 | 2.9958 to 6.2852 | (: mean = 0) | <0.0001 | <0.0001 | SD | 0.104 | 16.816 | Lower limit | −0.175 | −28.319 | 95% CI | −0.1920 to −0.1572 | −31.1321 to −25.5058 | Upper limit | 0.233 | 37.600 | 95% CI | 0.2156 to 0.2503 | 34.7867 to 40.4130 |
| Regression equation | | |
| Intercept | | | Coefficient | −0.029 | −0.538 | SE | 0.026 | 4.170 | -value | −1.135 | −0.129 | | 0.257 | 0.897 | 95% CI | −0.07958 to 0.02132 | −8.7351 to 7.6595 |
| Slope | | | Coefficient | 0.097 | 8.626 | SE | 0.042 | 6.805 | t-value | 2.318 | 1.268 | | 0.0209 | 0.206 | 95% CI | 0.01476 to 0.1794 | −4.7520 to 22.0044 |
|
|
SE and SD: standard error and standard deviation. Ho: null hypothesis. CI: confidence interval.
|