Table 1 Baseline characteristics of women pregnancies who delivered their babies at the Fujian Provincial Maternity and Children’s Hospital between January 2013 and November 2019
From: Gestational weight gain charts for twin pregnancies in Southeast China
Characteristics | All participants | Underweight | Normal weight | Overweight | P value |
|---|---|---|---|---|---|
Total numbers | 884 | 151 | 597 | 136 | |
Maternal age (years) | 30.0 ± 4.3 | 28.2 ± 4.1 | 30.3 ± 4.2 | 30.7 ± 4.3 | < 0.001a |
Maternal height (cm) | 160.9 ± 5.0 | 160.9 ± 4.4 | 161.1 ± 5.1 | 160.3 ± 5.2 | 0.309 |
Education (years) | 12.8 ± 3.3 | 12.5 ± 3.1 | 13.0 ± 3.3 | 12.2 ± 3.3 | 0.033 a |
Gestational age at delivery (weeks) | 37.8 ± 0.7 | 37.9 ± 0.8 | 37.8 ± 0.7 | 37.7 ± 0.6 | 0.058 |
Monochorionic twins | 164(18.6) | 36(23.8) | 109(18.3) | 19(14.0) | 0.094 |
Nulliparity | 514(58.1) | 87 (57.6) | 352 (59.0) | 75 (55.1) | 0.711 |
Average birth weight (g) | 2815.8 ± 253.2 | 2793.0 ± 247.6 | 2810.2 ± 255.5 | 2865.2 ± 244.6 | 0.035 a |
Total weight gain (kg) | 18.8 ± 5.1 | 19.5 ± 4.6 | 19.0 ± 5.1 | 17.4 ± 5.6 | 0.001 a |
GWG below guidelines | – | – | 203 (34.0) | 43 (31.6) | 0.641 |
GWG within guidelines | – | – | 307 (51.4) | 69 (50.7) | |
GWG above guidelines | – | – | 87 (14.6) | 24 (17.6) |