Table 1 Baseline characteristics of the participants with or without SHO and TNs

Sex (n, %)

  Male

46(8.8 %)

478(91.2 %)

78(14.9 %)

446(85.1 %)

  Female

148(19.6 %)

607(80.4 %)

160(21.2 %)

595(78.8 %)

Age (years)

47.25 ± 14.99

44.57 ± 14.54

52.84 ± 14.65

43.17 ± 14.43

Waistline, median (IQR), cm

84(76–90)

82.00(74–88)

84.10(77–92)

82(74–88)

SBP (mmHg)

117.33 ± 20.52

114.78 ± 20.14

120.54 ± 20.01

113.93 ± 19.83

DBP (mmHg)

76.41 ± 11.30

75.30 ± 11.91

77.15 ± 11.35

75.09 ± 11.91

TPOAb, n (%), IU/L

  > 34

38(26.2 %)

107(73.8 %)

29(20.0 %)

116(80.0 %)

  ≤ 34

156(13.8 %)

978(86.2 %)

209(18.4 %)

925(81.6 %)

TgAb, n (%), IU/L

  > 115

45(29.8 %)

106(70.2 %)

28(18.5 %)

123(81.5 %)

  ≤ 115

149(13.2 %)

979(86.8 %)

210(18.6 %)

918(81.4 %)

Smoker (n, %)

  Yes

38(10.1 %)

339(89.9 %)

57(15.1 %)

320(84.9 %)

  No

156(17.3 %)

746(82.7 %)

181(20.1 %)

721(79.9 %)

Alcoholic (n, %)

  Yes

31(12.1 %)

225(87.9 %)

36(14.1 %)

220(85.9 %)

  No

163(15.9 %)

860(84.1 %)

202(19.7 %)

821(80.3 %)

Fatty liver (n, %)

  Yes

60(18.5 %)

264(81.5 %)

72(22.2 %)

252(77.8 %)

  No

134(14.0 %)

821(86.0 %)

166(17.4 %)

789(82.6 %)

BMI, n (%), kg/m²

  ≥ 25

88(18.1 %)

399(81.9 %)

111(22.8 %)

376(77.2 %)

  < 25

106(13.4 %)

686(86.6 %)

127(16.0 %)

665(84.0 %)

Urine iodine, median (IQR), µg/L

210(151–298)

222(154–305)

224(150–331)

219(154–303)

Urine iodine, n (%), µg/L

  ≤ 200

84(15.6 %)

453(84.4 %)

96(17.9 %)

441(82.1 %)

  200–300

63(15.6 %)

340(84.4 %)

75(18.6 %)

328(81.4 %)

  > 300

47(13.9 %)

292(86.1 %)

67(19.8 %)

272(80.2 %)