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Fig. 2 | BMC Pregnancy and Childbirth

Fig. 2

From: Association of thyroid dysfunction and autoantibody positivity with the risk of preterm birth: a hospital-based cohort study

Fig. 2

Association of thyroid dysfunction and autoantibody positivity with risk of preterm birth. All analyses were adjusted for maternal age (years), residence (local or nonlocal), parity (nulliparous or pluriparous), assisted conception (yes or no), fetal sex (male or female), gestational diabetes (yes or no), and preeclampsia (yes or no). Thyroid function was classified according to gestational age-specific percentiles of the FT4 and TSH concentrations (the 2.5th and 97.5th percentiles)

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