Table 1: Clinical variables.

NMinimumMaximumMeanStandard deviation

Age238354839.032.29
BMI23816.4742.7724.087.11
Gravida3191.00102.781.52
Parity317060.940.93
Term316060.890.94
Preterm316010.040.21
Stillbirth318010.000.06
Spont Ab316050.540.89
Therapy Ab315030.300.60
Smokers238010.080.27
Number of Cigarettes2380200.602.52

Spont Ab: Spontaneous abortion.