Thyroid function
| . | All cases* (n = 190)* . | DVT only (n = 155) . | Controls (n = 379) . | P (2-sided)† . | P (2-sided)‡ . |
|---|---|---|---|---|---|
| FT4, pmol/L, mean (95% CI) | 16.0 (15.6-16.4) | 16.2 (15.8-16.7) | 15.4 (15.1-15.6) | <.01 | <.01 |
| T3, nmol/L, mean (95% CI)§ | 1.94 (1.87-2.00) | 1.90 (1.83-1.97) | 1.79 (1.75-1.82) | <.01 | <.01 |
| TSH, mU/L, median (95% CI) | 1.41 (1.22-1.51) | 1.37 (1.17-1.51) | 1.21 (1.11-1.30) | .03 | .09 |
| AntiTPO, U/mL, median (95% CI) | 29.0 (27.3-30.8) | 28.9 (27.2-30.7) | 29.8 (29.0-30.7) | .48 | .47 |
| Hyperthyroidism, n (%) | 3 (1.6) | 3 (1.9) | 0 (0) | .04‖ | .02‖ |
| Sub hyperthyroidism, n (%) | 9 (4.7) | 7 (4.5) | 18 (4.7) | .96‖ | .97‖ |
| Euthyroidism, n (%) | 170 (89.5) | 138 (89.0) | 348 (91.8) | NA | NA |
| Sub hypothyroidism, n (%) | 8 (4.2) | 7 (4.5) | 12 (3.2) | .50‖ | .43‖ |
| Hypothyroidism, n (%) | 0 (0.0) | 0 (0.0) | 1 (0.3) | .999‖ | .999‖ |
| . | All cases* (n = 190)* . | DVT only (n = 155) . | Controls (n = 379) . | P (2-sided)† . | P (2-sided)‡ . |
|---|---|---|---|---|---|
| FT4, pmol/L, mean (95% CI) | 16.0 (15.6-16.4) | 16.2 (15.8-16.7) | 15.4 (15.1-15.6) | <.01 | <.01 |
| T3, nmol/L, mean (95% CI)§ | 1.94 (1.87-2.00) | 1.90 (1.83-1.97) | 1.79 (1.75-1.82) | <.01 | <.01 |
| TSH, mU/L, median (95% CI) | 1.41 (1.22-1.51) | 1.37 (1.17-1.51) | 1.21 (1.11-1.30) | .03 | .09 |
| AntiTPO, U/mL, median (95% CI) | 29.0 (27.3-30.8) | 28.9 (27.2-30.7) | 29.8 (29.0-30.7) | .48 | .47 |
| Hyperthyroidism, n (%) | 3 (1.6) | 3 (1.9) | 0 (0) | .04‖ | .02‖ |
| Sub hyperthyroidism, n (%) | 9 (4.7) | 7 (4.5) | 18 (4.7) | .96‖ | .97‖ |
| Euthyroidism, n (%) | 170 (89.5) | 138 (89.0) | 348 (91.8) | NA | NA |
| Sub hypothyroidism, n (%) | 8 (4.2) | 7 (4.5) | 12 (3.2) | .50‖ | .43‖ |
| Hypothyroidism, n (%) | 0 (0.0) | 0 (0.0) | 1 (0.3) | .999‖ | .999‖ |
DVT indicates deep venous thrombosis; FT4, free thyroxine; CI, confidence interval; T3, triiodothyronine; TSH, thyrotropin; antiTPO, thyroid peroxidase antibodies; sub, subclinical; and NA, not applicable.
All patients with venous thrombosis (deep venous thrombosis, calf vein thrombosis or thrombophlebitis).
All cases versus controls.
Patients with DVT only versus controls.
Mean T3 levels involved 186 patients with venous thrombosis, of whom 151 patients were diagnosed with DVT, and 375 control subjects.
In comparison with euthyroidism.