Introduction and objective:
Childbirth is one of the most important events in a woman’s life and is influenced by many factors. The aim of the research was to analyze the impact of the place of residence of women giving birth and the time of day on the course of natural birth.

Material and methods:
The study was conducted using the method of analysis of retrospective electronic documentation of patients who gave natural vaginal birth in the St. Zofia hospital in Warsaw, Poland. The analysis covered the period from 1 January 2015–31 December 2020; from 40,007 cases, 20,980 were qualified for final analysis. Analysis of the documentation allowed to obtain the following data: socio-demographic, lifestyle, obstetrics, course of delivery and the condition of the newborn. Analysis of the relationship between qualitative variables was performed using the Chi-square test, while the Mann-Whitney U test was used to compare two quantitative variables.

Women giving vaginal delivery from rural areas were younger (30.9 vs. 31.3), had primary education (2.4% vs. 1.7%) and secondary education (16.2% vs. 10.1%), were in a relationship (86.1% vs. 81.6%) and more often had a higher BMI at birth (27.8 vs. 27.0), compared to the patients living in cities (p<0.05). In addition, between 07:00–18:59., induction of labour (20.7% vs. 19.1%), epidural anesthesia (35.4% vs. 34.0%) and episiotomy were performed more often (29.1% vs. 27.8%) (p<0.05).

Differences were shown in the course of vaginal delivery in relation to the place of residence of the women, and the time of day of the delivery. These factors should be considered in the planning of perinatal care. At the same time, it is necessary to conduct further research on the analyzed aspect in order to ensure the highest quality care.

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