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Table 2 Characteristics of patients and sonographic parameters

From: Evaluation of sensitivity and accuracy of maternal serum alpha fetoprotein to the diagnosis of open spina bifida in comparison with sonographic findings of open spina bifida and Chiari II malformation in pregnant women

  N (%)
OSB  
Positive 4 (7.3%)
Negative 51 (92.7%)
History of abortion  
Positive 13 (23.6%)
Negative 32 (58.2%)
Acid folic use  
Positive 33 (60%)
Negative 3 (5.5%)
Consanguineous marriage  
Positive 1 (1.8%)
Negative 32 (58.2%)
Gestational diabet  
Positive 1 (1.8%)
Negative 54 (98.2%)
Normal IT  
Positive 51 (92.7%)
Negative 4 (7.3%)
Obliterated CM  
Positive 51 (92.7%)
Negative 4 (7.3%)
Increased BS  
Positive 51 (92.7%)
Negative 2 (3.6%)
Decreased BSOB  
Positive 51 (92.7%)
Negative 2 (3.6%)
Increased BS/BSOB  
Positive 51 (92.7%)
Negative 2 (3.6%)
Ventriculomegalia  
Positive 52 (94.5%)
Negative 3 (5.5%)
Decreased BPD  
Positive 0 (0%)
Negative 55 (100%)