| Parameters | Total subjects () | Statistic | P | Male () | Statistic | | Female () | Statistic | | Thyroid nodules | Nonthyroid nodules | Thyroid nodules | Nonthyroid nodules | Thyroid nodules | Nonthyroid nodules |
| Participants | 2201 (32.4) | 4597 (67.6) | | | 854 (26.0) | 2435 (74.0) | | | 1352 (38.5) | 2157 (61.5) | | |
| General indices | | | | | | | | | | | | | Age (years) | 60.8 (55.1,67.9) | 57.9 (51.4,64.9) | 11.911 | <0.001 | 61.1 (55.6,67.7) | 58.1 (52,65) | 8.12 | <0.001 | 60.6 (54.8,68) | 57.6 (50.7,64.8) | 9.09 | <0.001 | Smoking, , (%) | 470 (22.1) | 1342 (30.2) | 48.20 | <0.001 | 465 (55.4) | 1332 (56.2) | 0.170 | 0.680 | 5 (0.4) | 10 (0.5) | 0.17 | 0.684 | Drinking, (%) | 226 (10.7) | 802 (18.2) | 60.32 | <0.001 | 216 (26.3) | 785 (33.6) | 14.97 | <0.001 | 10 (0.8) | 17 (0.8) | 0.02 | 0.883 | SBP (mmHg) | 136.0 (124.7,149.0) | 134.0 (122.7,146.3) | 4.43 | <0.001 | 135.3 (123.7,148.3) | 134.0 (123.3,146.3) | 1.71 | 0.088 | 136.7 (125.3,149) | 133.7 (122.3,146.3) | 4.29 | <0.001 | DBP (mmHg) | 77.0 (70.7,83.3) | 77.7 (71.0,84.3) | −2.82 | 0.005 | 78.0 (71.3,84.3) | 79 (72,86) | −2.81 | 0.005 | 76.7 (70.3,82.7) | 76.3 (70,82.7) | 0.257 | 0.797 | Metabolic indices | | | | | | | | | | | | | BMI (kg/m2) | 24.2 (22.1,26.5) | 24.3 (22.1,26.5) | −0.66 | 0.512 | 24.4 (22.4,26.5) | 24.6 (22.3,26.6) | −0.42 | 0.672 | 24.1 (21.9,26.5) | 24 (21.9,26.3) | 0.23 | 0.822 | WC (cm) | 86 (80,92) | 86 (80,93) | −0.58 | 0.564 | 88 (82,93) | 87 (81,94) | 0.93 | 0.354 | 84 (78,91) | 84 (78,91) | 0.66 | 0.506 | WHR | 0.9 (0.9,1) | 0.9 (0.9,0.9) | −0.51 | 0.611 | 0.9 (0.9,1.0) | 0.9 (0.9,1.0) | 1.29 | 0.199 | 0.9 (0.9,0.9) | 0.9 (0.8,0.9) | 0.78 | 0.437 | TCH (mmol/l) | 5.1 (4.5,5.8) | 5.1 (4.5,5.7) | 1.90 | 0.057 | 4.8 (4.3,5.4) | 4.9 (4.4,5.5) | −2.15 | 0.032 | 5.3 (4.7,5.9) | 5.2 (4.7,5.9) | 1.57 | 0.117 | TG (mmol/l) | 1.4 (1.0,1.9) | 1.3 (0.9,2.0) | 0.67 | 0.500 | 1.4 (1.0,2.0) | 1.4 (0.9,2.1) | −0.12 | 0.902 | 1.4 (1,1.9) | 1.3 (0.9,1.9) | 1.64 | 0.102 | HDL-C (mmol/l) | 1.5 (1.3,1.8) | 1.5 (1.3,1.8) | 0.75 | 0.451 | 1.4 (1.2,1.6) | 1.4 (1.2,1.7) | −2.95 | 0.003 | 1.6 (1.4,1.9) | 1.6 (1.4,1.9) | 0.03 | 0.973 | LDL-C (mmol/l) | 2.9 (2.4,3.4) | 2.8 (2.4,3.3) | 1.65 | 0.099 | 2.7 (2.2,3.2) | 2.7 (2.3,3.2) | −1.510 | 0.131 | 3 (2.5,3.5) | 2.9 (2.5,3.5) | 1.24 | 0.215 | UA (μmol/l) | 306 (256,363) | 313 (261,369) | −2.73 | 0.006 | 353 (304,404) | 350 (302,404) | 0.09 | 0.930 | 280 (237,329) | 273 (235,318) | 3.20 | 0.001 | FPG (mmol/l) | 5.7 (5.3,6.3) | 5.7 (5.3,6.2) | 2.48 | 0.013 | 5.7 (5.3,6.3) | 5.7 (5.3,6.3) | −0.08 | 0.938 | 5.7 (5.4,6.3) | 5.7 (5.3,6.1) | 4.01 | <0.001 | PPG (mmol/l) | 7.6 (6.2,10.0) | 7.3 (6.0,9.4) | 5.07 | <0.001 | 7.3 (5.9,10.1) | 7.2 (5.8,9.6) | 1.49 | 0.135 | 7.8 (6.5,9.9) | 7.3 (6.1,9.2) | 4.96 | <0.001 | HbA1c (%) | 5.6 (5.3,6.0) | 5.6 (5.3,5.9) | 4.76 | <0.001 | 5.6 (5.3,6) | 5.6 (5.3,5.9) | 2.26 | 0.024 | 5.6 (5.4,5.9) | 5.6 (5.3,5.8) | 4.71 | <0.001 | FINS (mIU/l) | 7.2 (4.9,10.7) | 6.8 (4.6,9.9) | 4.10 | <0.001 | 6.4 (4.2,9.6) | 6.2 (4.1,9.2) | 1.21 | 0.225 | 7.7 (5.3,11) | 7.5 (5.2,10.6) | 2.15 | 0.032 | HOMA-IR | 1.9 (1.2,2.9) | 1.8 (1.1,2.6) | 4.73 | <0.001 | 1.7 (1,2.7) | 1.7 (1,2.5) | 1.65 | 0.098 | 2 (1.3,3) | 1.9 (1.3,2.8) | 3.03 | 0.002 | HOMA-beta | 61.6 (42.2,89.1) | 59.9 (40.6,85.2) | 2.18 | 0.029 | 54.3 (34.6,82.6) | 53.7 (35.4,79.2) | 0.61 | 0.545 | 65.5 (47.1,93) | 66.7 (47,90.9) | −0.27 | 0.789 | Thyroid indices | | | | | | | | | | | | | FT3 (pmol/l) | 4.9 (4.5,5.4) | 5.1 (4.7,5.5) | −8.79 | <0.001 | 5.2 (4.7,5.7) | 5.3 (4.9,5.7) | −3.70 | <0.001 | 4.8 (4.4,5.2) | 4.9 (4.5,5.3) | −4.01 | <0.001 | FT4 (pmol/l) | 15.9 (14.7,17.4) | 15.8 (14.5,17.3) | 2.29 | 0.022 | 16.2 (14.8,18) | 16 (14.7,17.5) | 2.50 | 0.013 | 15.8 (14.5,17.1) | 15.6 (14.3,17) | 2.58 | 0.010 | TSH (mIU/l) | 2.0 (1.5,2.7) | 2.1 (1.5,2.8) | −2.24 | 0.025 | 1.8 (1.4,2.5) | 1.9 (1.4,2.6) | −1.31 | 0.191 | 2.1 (1.6,2.8) | 2.3 (1.7,3) | −4.38 | <0.001 | TPOAB (IU/ml) | 13.8 (8.7,22.8) | 12.5 (8.4,20.1) | 4.23 | <0.001 | 14.4 (9,23.5) | 12.4 (8.2,19.1) | 5.14 | <0.001 | 13.3 (8.4,22.4) | 12.7 (8.6,21.5) | 0.851 | 0.395 |
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