| Summary: | Introduction: knowledge of perinatal mortality is a fact of great importance as it provides an idea of the level of development and quality of health in the nations.
Objective: To determine the causes associated with perinatal mortality at the Mariana Grajales Gyneco-obstetric Hospital in three years of study.
Material and methods: A cross-sectional, descriptive study was conducted. A non-probability convenience sample of 228 patients treated at the Department of Obstetrics was taken. The variables of the study were: causes of perinatal mortality, maternal age and birth weight.
Results: The main causes were idiopathic causes (62, accounting for 27.2%), preeclampsia (16, for 7%) and retroplacental hematoma (23, for 10%). There was a significant relationship between the group 35 years and over and the causes perinatal mortality (X2=17.53, p=0.021), and between the causes of perinatal mortality and weights less than 999 grams (X2=14.32, p=0.012). The root cause in this group is premature rupture of the membrane (16, for 19%), and in the group from 1000 to 2,499 grams it was the idiopathic cause (21, 24.1%). Mortality of the mature (28, 49.1%) was not elucidated. It was found that the greatest number of causes were idiopathic, in all age groups and weights, and that the group 35 years and over and weights under 999 grams are significantly associated with perinatal mortality.
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