Table 1 Population clinical characteristics stratified by FT4.
FT4 level | All (n = 338) | P value | ||||
|---|---|---|---|---|---|---|
Q1 (n = 77) | Q2 (n = 87) | Q3 (n = 92) | Q4 (n = 82) | |||
Male, n (%) | 64(83.1) | 69(79.3) | 79(85.9) | 64(78.0) | 276(81.7) | 0.527 |
Age (year) | 56.9 ± 9.7 | 56.4 ± 10.4 | 55.6 ± 10.5 | 57.1 ± 10.2 | 56.5 ± 10.2 | 0.779 |
BMI (kg/m2) | 24.86 ± 3.42 | 24.81 ± 3.05 | 24.49 ± 3.34 | 25.01 ± 3.62 | 24.78 ± 3.35 | 0.752 |
Tobacco abuse, n (%) | 0.057 | |||||
None | 21(27.3) | 39(44.8) | 26(28.3) | 28(34.1) | 114(33.7) | |
Current | 46(59.7) | 40(46.0) | 50(54.3) | 42(51.2) | 178(52.7) | |
Former | 10(13.0) | 8(9.2) | 16(17.4) | 12(14.6) | 46(13.6) | |
Alcohol abuse, n (%) | 0.299 | |||||
None | 53(68.8) | 65(74.7) | 75(81.5) | 65(79.3) | 258(76.3) | |
Current | 22(28.6) | 19(21.8) | 14(15.2) | 12(14.6) | 67(19.8) | |
Former | 2(2.6) | 3(3.4) | 3(3.3) | 5(6.1) | 13(3.8) | |
Hypertension, n (%) | 63(81.8) | 76(87.4) | 84(91.3) | 74(90.2) | 297(87.9) | 0.250 |
DM, n (%) | 9(11.7) | 8(9.2) | 14(15.2) | 7(8.5) | 38(11.2) | 0.488 |
CAD, n (%) | 16(20.8) | 22(25.3) | 12(13.0) | 18(22.0) | 68(20.1) | 0.213 |
Hypercholesterolemia, n (%) | 20(26.0) | 29(33.3) | 28(30.4) | 18(22.0) | 95(28.1) | 0.373 |
COPD, n (%) | 7(9.1) | 4(4.6) | 2(2.2) | 5(6.1) | 18(5.3) | 0.245 |
PAD, n (%) | 39(50.6) | 34(39.1) | 33(35.9) | 32(39.0) | 138(40.8) | 0.239 |
SAS, n (%) | 1(1.3) | 1(1.1) | 1(1.1) | 1(1.2) | 4(1.2) | 0.999 |
CVD, n (%) | 18(23.4) | 29(33.3) | 19(20.7) | 26(31.7) | 92(27.2) | 0.169 |
History of cardiac surgery, n (%) | 0(0) | 1(1.1) | 2(2.2) | 0(0) | 3(0.9) | 0.360 |
FT3 (pg/ml), median (IQR) | 2.90(2.69–3.18) | 2.91(2.71–3.18) | 2.90(2.57–3.32) | 2.93(2.62–3.25) | 2.91(2.64–3.25) | 0.942 |
TSH (uIU/ml) | 2.31 ± 2.49 | 1.85 ± 1.56 | 1.85 ± 1.86 | 1.98 ± 1.40 | 1.99 ± 1.86 | 0.355 |
GFR (ml/min) | 89.95 ± 19.91 | 89.62 ± 21.61 | 87.71 ± 23.65 | 84.42 ± 21.61 | 87.91 ± 21.83 | 0.346 |
