Table 1 Clinicopathologic characteristics among people with or without thyroid nodule

Age (y)

43.75 ± 11.51

48.68 ± 12.16

FBG (mmol/L)

5.53 ± 1.28

5.69 ± 1.50

TAG (mmol/L)

1.84 ± 1.78

1.84 ± 1.84

TCH (mmol/L)

5.01 ± 0.97

5.10 ± 1.01

HDL (mmol/L)

1.33 ± 0.30

1.34 ± 0.30

LDL (mmol/L)

2.84 ± 0.82

2.91 ± 0.85

Estimate iodized salt intake

8.08 ± 1.95

8.75 ± 1.98

Sex [n (%)]

 Male

19,459 (63.1)

10,383 (50.0)

 Female

11,394 (36.9)

10,401 (50.0)

Family history of cancer [n (%)]

 No

29,975 (97.2)

20,234 (97.4)

 Yes

878 (2.8)

550 (2.6)

History of exposure to hazardous substances [n (%)]

 No

16,518 (53.5)

10,718 (51.6)

 Yes

14,335 (46.5)

10,066 (48.4)

Smoking [n (%)]

 No

23,337 (75.6)

15,539 (74.8)

 Yes

7516 (24.4)

5245 (25.2)

Drinking [n (%)]

 No

21,077 (68.3)

13,874 (66.8)

 Yes

9776 (31.7)

6910 (33.2)

Exercising [n (%)]

 No

11,306 (36.6)

8758 (42.1)

 Yes

19,547 (63.4)

12,026 (57.9)

Estimate salt intake [n (%)]

 ≤ 5 g

1393 (4.5)

462 (2.2)

 > 5 g

29,460 (95.5)

20,322 (97.8)

BMI [n (%)]

 ≤ 18.5

6106 (19.8)

4376 (21.1)

 18.5–24

21,730 (70.4)

14,524 (69.9)

 24–28

2538 (8.2)

1588 (7.6)

 > 28

479 (1.6)

296 (1.4)

Educational status [n (%)]

 Senior high school and below

10,110 (32.8)

9489 (45.9)

 Undergraduate college

15,479 (50.1)

9256 (44.5)

 Postgraduate and above

5264 (17.1)

2039 (9.9)

Marital status [n (%)]

 Single

2686 (8.6)

1203 (5.8)

 Married

27,331 (88.6)

18,905 (91.0)

 Divorced

603 (2.0)

400 (1.9)

 Windowed

233 (0.8)

276 (1.3)

Sleeping time [n (%)]

 < 5 h

2929 (9.5)

1954 (9.4)

 5-7 h

19,162 (62.1)

13,199 (63.5)

 7-9 h

8411 (27.3)

5422 (26.1)

 > 9 h

351 (1.1)

209 (1.0)

Working time [n (%)]

 < 4 h

3585 (11.6)

2625 (12.6)

 4-6 h

4931 (16.0)

3267 (15.8)

 6-8 h

14,024 (45.5)

9338 (44.9)

 > 8 h

8313 (26.9)

5554 (26.7)