Author/Authors :
Tunç, Erdal Çukurova University - Faculty of Medicine - Department of Medical Biology and Genetics, Turkey , Demirhan, Osman Çukurova University - Faculty of Medicine - Department of Medical Biology and Genetics, Turkey , Pazarbaşı, Ayfer Çukurova University - Faculty of Medicine - Department of Medical Biology and Genetics, Turkey , Taştemir, Deniz Adıyaman University - Vocational School of Health Sciences, Turkey , Güzel, Ali İrfan Recep Tayyip Erdogan University - Faculty of Medicine - Department of Medical Biology and Genetics, Turkey , Kasap, Mülkiye Çukurova University - Faculty of Medicine - Department of Medical Biology and Genetics, Turkey , Özgünen, Fatma Tuncay Çukurova University - Faculty of Medicine - Department of Gynecology and Obstetrics, Turkey , Yılmaz, Bertan Çukurova University - Faculty of Medicine - Department of Medical Biology and Genetics, Turkey , Kocatürk-Sel, Sabriye Çukurova University - Faculty of Medicine - Department of Medical Biology and Genetics, Turkey
Abstract :
Purpose: This investigation was conducted to determine whether the month of conception, parental age, and environmental factors such as seasonal variation, consumption of alcohol and cigarette by parents, play a role on sex ratio at pregnancy in Çukurova region and surrounding area population (Turkey). Materials and Methods: We have analyzed tha data of patients who were referred to our prenatal diagnosis laboratory for amniosynthesis with the purpose of karyotyping between the years of 2005-2007. We used Pearsen Chi-square, Fisher’s exact and T-tests for statistical analyses. Results: No association was established between the primary sex ratio and time for pregnancy. Differences in primary sex ratio among the months were not statistically significant, but the difference for the month of September was noted. For september, we have found statistically significant distortion of sex ratio toward male, (males:females ratio=1.8). Conclusion: In conclusion, our speculation is that the climate change in September may affect the primary sex ratio under the summer/autumn photoperiod.
NaturalLanguageKeyword :
Karyotyping , month of conception , primary sex ratio , prenatal diagnosis
