Introduction:

preterm delivery is a challenge to modern obstetrics and contributes to perinatal mortality, severe neonatal morbidity and infant disability.

Objective:

to know how the risk factors and cervicometric characteristics are manifested in a group of patients admitted with symptoms of preterm labor.

Methods:

a qualitative, quantitative, observational, analytical and cross-sectional study was carried out, the study population comprised all patients with manifestations of preterm labor symptoms; a non-probabilistic sampling by criteria was carried out and 433 were included.

Results:

the mean cervical length at admission of patients with preterm labor was 25.7 millimeters and in those who did not have preterm labor was 33.2 millimeters and the risk factors that showed statistical association to preterm labor were urinary and vaginal infection, history of preterm labor and history of bleeding during gestation. There was a highly significant association between cervical length and gestational age at delivery (p=0.000; Cramer's V=0.295), and embolization in pregnant women increases the risk of preterm delivery by 5.95 times.

Conclusions:

risk factors such as urinary and vaginal infection, history of preterm delivery and history of bleeding during gestation were associated. There was a highly significant association between cervical length and embolization with preterm delivery.

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