Table 1.
Baseline characteristics and bivariate association with macrosomia
| Variable | Total n = 10,089 N (Weighted %) |
Macrosomia | P-value | |
|---|---|---|---|---|
| Yes n = 1767 (17.2%) Weighted % |
No n = 8322 (82.8%) Weighted % |
|||
| Age (years), Weighted Mean (SE) | 51.7 (0.2) | 54.4 (0.4) | 51.1 (0.3) | < 0.001 |
| 20–44 | 3514 (35.5%) | 29.7% | 36.6% | |
| 45–64 | 3800 (40.4%) | 40.0% | 40.0% | |
| ≥ 65 | 2775 (24.1%) | 23.4% | 29.7% | |
| Age at time of Macrosomia (years),a Weighted Mean (SE) | 26.2 (0.2) | 26.2 (0.2) | NA | NA |
| Gestational Diabetes | < 0.001 | |||
| No | 9295 (92.4%) | 88.0% | 93.3% | |
| Yes | 775 (7.6%) | 12.0% | 6.7% | |
| Age at time of Gestational Diabetes (years),b Weighted Mean (SE) | 28.2 (0.3) | 28.2 (0.6) | 28.2 (0.3) | 1.000 |
| Parity | < 0.001 | |||
| Primiparous | 1958 (21.7%) | 11.2% | 23.9% | |
| Multiparous | 8131 (78.3%) | 88.8% | 76.1% | |
| Obesity | < 0.001 | |||
| Underweight/Normal | 2686 (30.0%) | 22.4% | 31.6% | |
| Overweight | 2937 (29.5%) | 29.0% | 29.7% | |
| Obese | 4367 (40.5%) | 48.7% | 38.7% | |
| Race/Ethnicity | < 0.001 | |||
| Non-Hispanic White | 4201 (67.7%) | 70.8% | 67.0% | |
| Non-Hispanic Black | 2164 (12.1%) | 9.8% | 12.5% | |
| Mexican American | 1656 (8.3%) | 8.8% | 8.2% | |
| Other Hispanic | 1194 (5.6%) | 6.5% | 5.4% | |
| Other Race, Including Multiracial | 874 (6.4%) | 4.0% | 6.8% | |
| Diabetes | < 0.001 | |||
| No | 7234 (76.4%) | 70.2% | 77.7% | |
| Yes | 2855 (23.6%) | 29.8% | 22.3% | |
Rao-Scott chi-square test and two sample t test were used to evaluate bivariate association with macrosomia, adjusting for the complex sampling design
N Unweighted frequency, Weighted % Weighted column percentage, SE Standard error
aAmong the women who had macrosomia
bAmong the women who had gestational diabetes