Table 2. Thyroid abnormalities in RA patients with and without positive TAbs.
| Parameter | Total (n = 125) | TAbs-positive group (n = 44) | TAbs-negative group (n = 81) | pa |
|---|---|---|---|---|
| Thyroid function | ||||
| FT3 (pmol/L) | 4.23(3.70–4.91) | 4.22(3.67–4.61) | 4.31(3.71–4.98) | 0.254 |
| FT3 abnormality, n (%) | 14(12) | 9(18) | 5(6) | 0.019 |
| FT3 elevated | 2(2) | 2(2) | 0(0) | NA |
| FT3 reduced | 12(10) | 7(16) | 5(6) | 0.076 |
| FT4 (pmol/L) | 15.96(14.70–18.21) | 15.25(14.35–18.02) | 16.18(14.92–18.39) | 0.199 |
| FT4 abnormality, n (%) | 8(14) | 6(14) | 2(3) | 0.022 |
| FT4 elevated | 4(7) | 3(7) | 1(1) | 0.125 |
| FT4 reduced | 4(7) | 3(7) | 1(1) | 0.125 |
| TSH (pmol/L) | 1.09(0.55–2.12) | 1.22(0.54–2.36) | 1.01(0.55–1.99) | 0.380 |
| TSH abnormality, n (%) | 10(8) | 8(18) | 2(3) | 0.004 |
| TSH elevated | 5(4) | 4(9) | 1(1) | 0.052 |
| TSH reduced | 5(4) | 4(9) | 1(1) | 0.052 |
| Thyroid disorders, n (%) | ||||
| Hyperthyroidism | 5(4) | 4(9) | 1(1) | 0.052 |
| Clinical hyperthyroidism | 3(2) | 3(7) | 0(0) | NA |
| Subclinical hyperthyroidism | 2(2) | 1(2) | 1(1) | 0.582 |
| Hypothyroidism | 5(4) | 4(9) | 1(1) | 0.052 |
| Clinical hypothyroidism | 2(2) | 2(5) | 0(0) | NA |
| Subclinical hypothyroidism | 3(2) | 2(5) | 1(1) | 0.283 |
Notes.
a
Comparison between the TAbs-positive group and the TAbs-negative group. Data are described as the median (interquartile range) unless stated otherwise.