Table 2 Association of thyroid dysfunction and autoantibody positivity with risk of very preterm birth^a

Subclinical hyperthyroidism

0.29

0.72

0.16

0.69

1.33 (0.33–5.44)

Hyperthyroidism

−0.11

1.01

0.01

0.91

0.90 (0.12–6.45)

Isolated hypothyroxinemia

0.65

0.39

2.71

0.10

1.91 (0.88–4.12)

Isolated hyperthyroidism

0.24

0.72

0.11

0.74

1.27 (0.31–5.16)

Subclinical hypothyroidism

0.45

0.51

0.79

0.37

1.57 (0.58–4.29)

TPOAb positive (vs. negative)

0.02

0.32

0.01

0.94

1.02 (0.55–1.90)

TRAb positive (vs. negative)

0.73

0.46

2.49

0.11

2.07 (0.84–5.10)

TgAb positive (vs. negative)

0.02

0.30

0.01

0.94

1.02 (0.57–1.85)