TPO and hyperthyroidism: SCH with an OR of 1.54 (95% CI: 1.06, 2.25), thyroid peroxidase antibody with an OR of 1.05 (95% CI: 0.37, 2.92), isolated hypothyroxinemia with an OR of 1.05 (95% CI: 0.37, 2.92), subclinical hyperthyroidism with an OR of 0.98 (95% CI: 0.40, 2.41), and depression during pregnancy with an RR of 1.03 (95% CI: 0.99, 1.08) were not identified as a risk factor for IUGR (Table 1).