Table 3 Potential parameters affecting the recovery rate of thyroid function in (sub-)clinical hypothyroidism

Location

4.613

0.032

 Se-adequate

36

20.5

74

29.7

32.7

 Se-deficient

140

79.5

175

70.3

44.4

Age2019

2.904

0.407

 18–30

5

2.8

4

1.6

55.6

 31–40

13

7.4

18

7.2

41.9

 41–50

39

22.2

42

16.9

48.1

  >  = 51

119

67.6

185

74.3

39.1

Age (years)

-2.707

0.007

Serum Se at baseline

-0.530

0.596

Gender

6.679

0.010

 Male

69

39.2

68

27.3

50.4

 Female

107

60.8

181

72.7

37.2

Education

2.163

0.539

 Elementary school and below

104

59.1

164

65.9

38.9

 middle school

47

26.7

57

22.9

45.2

 High school / technical secondary school

17

9.7

20

8.0

46.0

 University and above

8

4.5

8

3.2

50.0

Smoking status

12.723

0.002

 Never

130

73.9

208

83.5

38.5

 Occasional smokers

3

1.7

11

4.4

21.4

 Frequent smokers

43

24.4

30

12.0

58.9

BMI

6.685

0.083

  < 18.5

9

5.1

26

10.4

28.1

 18.5 ~ 23.99

91

51.7

136

54.6

40.7

 24 ~ 27.99

62

35.2

65

26.1

48.7

  >  = 28

14

8.0

22

8.8

40.6

Alcohol consumption

10.548

0.005

 Never

99

56.3

178

71.5

35.7

 Occasional

54

30.7

50

20.1

51.9

 Frequent

23

13.1

21

8.4

52.3