Table 1 Baseline characteristics for total participants
Characteristics | n (%) | Mean ± SD |
|---|---|---|
Total pregnancy women | 870 | |
Age, years | 28.4 ± 4.0 | |
0–25 | 181 (20.8) | |
26 ~ 35 | 643 (73.9) | |
> 35 | 46 (5.3) | |
Gestational week | 16.6 ± 6.9 | |
first trimester | 178 (20.5) | |
second trimester | 628 (72.2) | |
third trimester | 64 (7.4) | |
Pre-pregnancy BMI, kg/m2 | 22.7 ± 3.7 | |
< 18.5 | 63 (7.2) | |
18.5 ~ 24 | 569 (65.4) | |
24.1 ~ 28.9 | 175 (20.1) | |
≥ 29 | 63 (7.2) | |
Multivitamin with iodine | ||
Yes | 124 (14.3) | |
No | 746 (85.7) | |
Iodized salt | ||
Yes | 789 (90.7) | |
No | 81 (9.3) | |
Sea food (fish, crab, shrimp) | ||
Frequent | 135 (15.5) | |
Occasional | 667 (76.7) | |
None | 68 (7.8) | |
Cow’ milk | ||
Frequent | 412 (47.4) | |
Occasional | 397 (45.6) | |
None | 61 (7.0) | |
Yogurt | ||
Frequent | 144 (16.6) | |
Occasional | 521 (59.9) | |
None | 205 (23.6) | |
Egg | ||
Frequent | 347 (39.9) | |
Occasional | 478 (54.9) | |
None | 45 (5.2) | |
Total infants | 870 | |
Infants gender | ||
Male | 468 (53.79) | |
Female | 402 (46.21) | |
Infants weight (g) | 3393.3 ± 294.4 | |
< 4000 | 834 (95.86) | |
≥ 4000 | 36 (4.14) | |
Infants length (cm) | 50.0 ± 1.7 | |
Femur length (cm) | 7.3 ± 0.3 | |
Head circumference (cm) | 33.6 ± 1.3 | |