Table 1. Univariate analysis of the maternal characteristics in Groups 1 and 2.
| Variables | G1 (n = 284) n (%) | G2 (n =4 39) n (%) | OR (95% CI) | P value | |
|---|---|---|---|---|---|
| Maternal age (years) | |||||
| <35 | 209 (73.6) | 354 (80.6) | |||
| ≥35 | 44 (15.5) | 57 (13.0) | 0.76 (0.49-1.17) | 0.22 | |
| MD d | 31 (10.9) | 28 (6.4) | |||
| Cesarean delivery | |||||
| No | 100 (35.2) | 149 (34.0) | |||
| Yes | 123 (43.3) | 213 (48.5) | 1.16 (0.82-1.62) | 0.38 | |
| MD d | 61 (21.5) | 77 (17.5) | |||
| Twin pregnancy | |||||
| No | 264 (92.9) | 414 (94.3) | |||
| Yes | 5 (1.8) | 10 (2.3) | 1.27 (0.44-4.13) | 0.66 | |
| MD d | 15 (5.3) | 15 (3.4) | |||
| Gestational complications a | |||||
| No | 149 (52.5) | 269 (61.3) | |||
| Yes | 106 (37.3) | 144 (32.8) | 0.75 (0.54-1.03) | 0.08 | |
| MD d | 29 (10.2) | 26 (5.9) | |||
| TD in pregnancy b | |||||
| No | 88 (31.0) | 120 (27.4) | |||
| Yes | 10 (3.5) | 19 (4.3) | 1.39 (0.62-3.25) | 0.42 | |
| MD d | 186 (65.5) | 300 (68.3) | |||
| Prior TD c | |||||
| No | 232 (81.7) | 383 (87.2) | |||
| Yes | 19 (6.7) | 31 (7.1) | 0.98 (0.55-1.81) | 0.96 | |
| MD d | 33 (11.6) | 25 (5.7) | |||
| Parental consanguinity | |||||
| No | 238 (83.8) | 390 (88.8) | |||
| Yes | 9 (3.2) | 14 (3.2) | 0.94 (0.4-2.31) | 0.9 | |
| MD d | 37 (13.0) | 35 (8.0) | |||
Univariate logistic regression model. G1: group of newborns with sTSH < 10 mIU/L. G2: group of newborns with sTSHs ≥ 10 mIU/L. OR: odds ratio; 95% CI: 95% confidence interval.
a
Use of Lugol's iodine solution, HIV infection, gestational diabetes, preeclampsia, eclampsia, smoking, use of illicit drugs, anemia, urinary tract infection.
b
TD in pregnancy: Thyroid disease diagnosed during pregnancy.
c
Prior TD: Thyroid disease diagnosed before pregnancy.
d
MD: Missing data of each variable.