Table 1.
Maternal demographics and pregnancy characteristics comparing patients with isolated short femur <10th%ile to those with a femur length ≥10th%ile
| Isolated Femur Length <10th%ile (n=268) | Femur Length ≥10tho%ile (n=73,345) | p-value | |
|---|---|---|---|
| Maternal Age (years) | 30.5 ± 6.2 | 29.8 ± 6.4 | 0.07 |
| Gestational Age at Ultrasound (weeks) | 18.5 ± 1.6 | 19.2 ± 1.7 | <0.001 |
| Gravidity | 2.6 ± 1.6 | 2.7 ± 1.6 | 0.54 |
| Parity | 1.0 ± 1.3 | 1.0 ± 1.2 | 0.96 |
| Maternal Race | <0.001 | ||
| Caucasian | 75.3% | 59.2% | |
| African American | 9.1% | 25.5% | |
| Hispanic | 1.1% | 1.1% | |
| Asian | 1.1% | 0.9% | |
| Other | 13.4% | 13.3% | |
| Tobacco Use | 19.4% | 11.7% | <0.001 |
| History of Chronic Hypertension | 2.2% | 2.5% | 0.81 |
| History of Pre-Gestational Diabetes | 3.4% | 1.8% | 0.06 |
| Gestational Age at Delivery (weeks) | 36.6 ± 6.7 | 38.5 ± 3.7 | <0.001 |