Gestational thyroid reference intervals in antibody-negative Chinese women.

Objectives: The aim of this study is to establish gestation-specific reference intervals (GRIs) for thyroid function assays in pregnant Chinese women with ARCHITECT and compare them to other GRI studies.

Design And Method: Thyroid antibody negative pregnant Chinese women were enrolled and followed to establish GRIs for thyroid function by use of the Abbott ARCHITECT i2000SR analyzer (N=1409). Samples from 360 non-pregnant Chinese women served as controls.