Table 1 Characteristics and thyroid parameters of 141 breech women who had an ECV attempt.
From: Maternal thyroid function and the outcome of external cephalic version: a prospective cohort study
Mean (SD) | N (%) | |
|---|---|---|
Demographic features | ||
Maternal age (years) | 31.6 (4.2) | |
Range (23 - 46) | ||
Any tobacco use | 11 (8) | |
Any alcohol use | 12 (8.5) | |
Body mass index (BMI) | ||
Range (17 - 47) | 23.7 (4.2) | |
BMI < 25 | 112 (79.5) | |
BMI between 25 and 30 | 17 (12) | |
BMI > 30 | 12 (8.5) | |
Previous miscarriage in life | 31 (22) | |
Obstetrical features | ||
Nulliparity | 93 (66) | |
Multiparity | 48 (34) | |
Gestational age at ECV (wks) | 36.1 (0.9) | |
Range (35.0-39.9) | ||
Type of breech | ||
Frank | 93 (66) | |
Complete | 36 (25.5) | |
Incomplete | 12 (8.5) | |
Placenta location | ||
Anterior | 55 (39) | |
Posterior | 56 (40) | |
Lateral | 30 (21) | |
Cephalic presentation after ECV | 77 (55) | |
Cephalic presentation at delivery | 79 (56) | |
Placental weight (grams) | 615 (127) | |
Range (295 - 1000) | ||
Birth weight (grams) | 3344 (447) | |
Range (1765 - 4576) | ||
Thyroid parameters | ||
TSH mIU/l | ||
median | 1.48 | |
Range (0.02 - 10.0) | ||
FT4 pmol/l | ||
median | 10.0 | |
Range (7.1 - 14.0) | ||
TPO-Ab > 35 kU/l | 9 (6) |