Objective: The factors affecting the health of women and babies in the prenatal and perinatal periods may differ according to ethnicity. This study aims to evaluate the effects of ethnicity on findings in prenatal and perinatal periods among Turkish-born and Syrian-born women living in Adıyaman.

Material and Method: This retrospective study evaluated the laboratory data of 600 pregnant women. Pregnant women were divided into the Syrian-born group (n =300; mean age±SD: 30.38±6.38 years) and the Turkish-born group (n =300; mean age±SD: 29.84±6.07 years). Demographic data, obstetric history, clinical findings, neonatal and obstetric outcomes were compared between groups. In addition, women\'s hemoglobin, TSH, Vitamin D, and Vitamin B12 results were evaluated.

Results: There were significant differences between Turkish and Syrian women regarding preeclampsia, intrauterine growth retardation (IUGR), and screening test rate. Preeclampsia was higher in Turkish women compared to Syrian women (p =0.002). IUGR and lack of screening tests were more common in Syrian women compared to Turkish women (p ˂0.001, p ˂0.001, respectively). In addition, the vitamin D level was significantly lower in Syrian women than in Turkish women (p ˂0.001). Then, the groups were evaluated according to their vitamin D levels by dividing them into deficiency, insufficiency and normal. While vitamin D deficiency was more common among Syrian women than Turkish women, Turkish women had normal and insufficient vitamin D levels compared to Syrian women (p ˂0.001).

Conclusion: To the best of our knowledge, this is the first study comparing Syrian and Turkish pregnant women in Adıyaman According to our findings, it was seen that Syrian pregnant women had lower screening test rate, lower vitamin D levels and higher IUGR than Turkish pregnant women.