Table 1.
Baseline demographic, hemodynamic and clinical characteristics of low and normal freeT3 patient groups
| Variable | Normal freeT3 (n = 79) | Low freeT3 (n = 35) | P value |
| Age | 59.96 ± 14.74 | 66.84 ± 13.11 | 0.019 |
| Female gender | 18 (22.78%) | 12 (34.28%) | 0.237 |
| BMI (kg/m2) | 25.65 ± 2.92 | 26.49 ± 4.02 | 0.622 |
| HD duration (mo) | 66.42 ± 59.69 | 56.49 ± 41.08 | 0.302 |
| HD morning shift | 75 (94.93%) | 32 (91.42%) | 0.418 |
| OL-HDF | 22 (27.84%) | 11 (31.42%) | 0.484 |
| CVC access | 10 (12.65%) | 9 (25.71%) | 0.160 |
| Kt/V | 1.27 ± 0.39 | 1.29 ± 0.42 | 0.822 |
| Smoking | 16 (20.25%) | 9 (25.71%) | 0.606 |
| History of CVD | 24 (30.37%) | 17(48.57%) | 0.048 |
| Diabetes | 16 (20.25%) | 16 (45.71%) | 0.017 |
| Hypertension | 60 (75.94%) | 23 (65.71%) | 0.488 |
| SBP (mmHg) | 131.06 ± 19.94 | 130.50 ± 21.94 | 0.819 |
| DBP (mmHg) | 68.42 ± 13.87 | 71.22 ± 14.47 | 0.357 |
Values are expressed as means ± SD or numbers (%) as appropriate. BMI: Body mass index; CVC: Central venous catheter; CVD: Cardiovascular disease; DBP: Diastolic blood pressure; HD: Hemodialysis; OL- HDF: On-line hemodiafiltration; SBP: Systolic blood pressure.