Table 3.
Comparison of babies with serum TSH levels <10 mIU/L and >10 mU/mL
| Characteristics | Serum TSH <10 mIU/L (n=268) | Serum TSH >10 mIU/L (n=66) | P * |
|---|---|---|---|
| Gender | |||
| Female (%) | 149 (55.6) | 29 (43.9) | |
| Male (%) | 119 (44.4) | 37 (56.1) | 0.89 |
| Type of Delivery | |||
| Normal | 152 (56.7) | 41 (62.1) | |
| Cesarean | 116 (43.3) | 25 (37.9) | 0.426 |
| Birth weight (g) | 3300 (3000–3600) | 3430 (3140–3600) | 0.119 |
| Birth height (cm) | 49 (48–50) | 50 (49–51) | 0.123 |
| Maternal age (year) | 27 (22–30) | 26.5 (23–29) | 0.896 |
| Number of pregnancies | 2 (1–2) | 2 (1–3) | 0.206 |
| Free T4 (ng/dL) | 1.68 (1.52–1.91) | 1.59 (1.39–1.89) | 0.042 |
| Total T4 (μg/dL) | 13.9 (11.6–16.3) | 12.6 (10.9–15.6) | 0.066 |
| Total T3 (ng/dL) | 178.5 (148.3–222.8) | 178.5 (146.5–226.8) | 0.139 |
| TSH (mIU/L) | 3.89 (2.48–5.74) | 15.4 (12.10–22.30) | <0.001 |
| Neonatal urinary iodine concentration (μg/L) | 141.0 (131.0–150.0) | 145.0 (138,0–154,3) | 0.053 |
| Maternal urinary iodine concentration (μg/L) | 125.0 (118.0–140.0) | 129.0 (117–142) | 0.957 |
| Breast milk urinary iodine concentration (μg/L) | 138,0 (132.0–143.0) | 138.5 (130.8–143.0) | 0.720 |
*
Chi-square test and Mann-Whitney U test
Data are given as median value (25p–75p).