Table 1.
Baseline characteristics of the study population
| Variables | Group 1 (n = 205) | Group 2 (n = 410) | p |
|---|---|---|---|
| Age, years (mean ± SD) | 60.9±10.2 | 62.7±10.2 | 0.042 |
| Male sex | 173 (84.4) | 320 (78) | 0.063 |
| Diabetes mellitus | 83 (40.5) | 163 (39.8) | 0.861 |
| Hypertension | 101 (49.3) | 191 (46.6) | 0.530 |
| Hyperlipidemia | 106 (51.7) | 200 (48.8) | 0.494 |
| Current smoker | 68 (33.2) | 140 (34.1) | 0.809 |
| Ex-smoker | 77 (37.6) | 144 (35.1) | 0.552 |
| A history of: | |||
| MI | 117 (57.1) | 219 (53.4) | 0.390 |
| PCI | 125 (61) | 232 (56.6) | 0.298 |
| CVA | 19 (9.3) | 33 (8) | 0.608 |
| PAD | 22 (10.7) | 32 (7.8) | 0.227 |
| CHF | 42 (20.5) | 76 (18.5) | 0.562 |
| Baseline thyroid status | |||
| Euthyroid | 186 (90.8) | 379 (92.4) | 0.642 |
| Subclinical hyperthyroidism | 14 (6.8) | 25 (6.1) | |
| Subclinical hypothyroidism | 5 (2.4) | 6 (1.5) | |
| Median time of postprocedural thyroid function tests, days (IQR) | 147 (132–168) | 152 (138–169) | 0.197 |
| Median amount of ICM administered, mL (IQR) | 255 (195–300) | 80 (65–90) | <0.001 |
Values express n (%), unless otherwise indicated. CHF, congestive heart failure; CVA, cerebrovascular accident; ICM, iodinated contrast medium; MI, myocardial infarction; PAD, peripheral arterial disease; PCI, percutaneous coronary intervention; SD, standard deviation; IQR, interquartile range.