Research Article
Influence of the Umbilical Cord Insertion Site on the Optimal Individual Birth Weight Achievement
Table 3
Confounding variables involved in fetal growth restriction.
| | Variables | Central
() | Peripheral
() | value |
| | Prepregnancy pathology | Number (%) | 9/343 (2.6%) | 7/185 (3.8%) | ns | | 95% CI | [0.01–0.04] | [0.01–0.07] |
| | Uterine anomaly | Number (%) | 4/343 (1.2%) | 0/185 (0%) | ns | | 95% CI | [0.00–0.02] | [0.00-0.00] |
| | Pregnancy pathology | Number (%) | 37/343 (10.8%) | 17/185 (9.2%) | ns | | 95% CI | [0.08–0.14] | [0.05–0.13] |
| | Tobacco use | Number (%) | 34/343 (9.9%) | 37/185 (20.0%) | 0.0012 | | 95% CI | [0.07–0.13] | [0.14–0.26] |
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