Table 2 Comparison of the incidence of metabolic syndrome between the higher-TH and the lower-TH groups

Participants/person-years

113/1164

141/1057

Model 1^a

1.00

1.358 (1.060, 1.740)

Model 2^b

1.00

1.308 (1.016, 1.683)

Model 3^c

1.00

1.263 (0.972, 1.640)

T3 (nmol/L)

≤1.9

> 1.9

Participants/person-years

121/1165

133/1056

Model 1^a

1.00

1.000 (0.781, 1.279)

Model 2^b

1.00

1.016 (0.793, 1.302)

Model 3^c

1.00

1.005 (0.781, 1.294)

T4 (nmol/L)

≤117

> 117

Participants/person-years

122/1065

132/1156

Model 1^a

1.00

1.004 (0.785, 1.284)

Model 2^b

1.00

0.967 (0.756, 1.238)

Model 3^c

1.00

1.003 (0.779, 1.290)

FT3 (pmol/L)

≤4.3

> 4.3

Participants/person-years

85/839

95/870

Model 1^a

1.00

1.078 (0.804, 1.445)

Model 2^b

1.00

1.012 (0.753, 1.361)

Model 3^c

1.00

1.054 (0.778, 1.429)

FT4 (pmol/L)

≤16

> 16

Participants/person-years

100/753

80/956

Model 1^a

1.00

0.636 (0.474, 0.854)

Model 2^b

1.00

0.619 (0.460, 0.832)

Model 3^c

1.00

0.622 (0.458, 0.846)