Time from RA diagnosis to ultrasonography | Carotid IMT (mm) mean ± SD | FMD (%) mean ± SD |
---|---|---|
Quartile 1, one to seven years | 0.69 ± 0.17 | 7.4 ± 3.8 |
Quartile 2, 7.5 to 14 years | 0.68 ± 0.16 | 6.6 ± 4.6 |
Quartile 3, 14.5 to 19.7 years | 0.84 ± 0.24 | 4.0 ± 4.0 |
Quartile 4, 20 to 38 years | 0.81 ± 0.12 | 3.3 ± 4.4 |
P value | < 0.001 | < 0.001 |