Hormozgan Medical Journal
مجله پزشکی هرمزگان
Hormozgan Medical Journal
Medical Sciences
http://hmj.hums.ac.ir
1
admin
2423-3528
2423-3536
doi
en
jalali
1393
11
1
gregorian
2015
2
1
18
6
online
1
fulltext
en
The relationship between paternal smoking and sex ratio of children born in public maternity hospitals in Bandar Abbas (Iran)
The relationship between paternal smoking and sex ratio of children born in public maternity hospitals in Bandar Abbas (Iran)
عمومى
General
پژوهشي
Research
Introduction: Earlier studies throughout the world show that the ratio of live male births to live female births is declining. There are several factors associated with the reduction of male births including environmental pollutions, exposure to chemicals and smoking. The aim of this study is to determine the relationship between paternal smoking and sex ratio of children at public maternity hospitals in Bandar Abbas. Methods: The present cross-sectional study surveyed public hospitals in Bandar Abbas (Iran) from 21 March 2010 to 20 March 2011. Data was collected by census method. Seven hundred thirty mothers eligible for the completed a questionnaire and provided required information. Then sex ratio was compared in two groups. Three hundred sixty five mothers lived with smoker spouse and 365 did not. Data analysis was done by SPSS statistical software using descriptive methods, Chi-square test and logistic regression analysis. Results: Results showed that the spouses with lower education smoked cigarettes more than those with higher education. The difference was statistically significant (P<0.0001). Sex ratio for children with smoker father and the group with non-smoker father was 0.7 and 1.2, respectively; and the relationship was significant (P<0.001). Out of 365 smoker fathers, 283 cases smoked less than 20 cigarettes per day, and 82 smoked more than 20 cigarettes. The sex ratios for the babies with smoker fathers smoking less than 20 cigarettes and those smoking more than 20 cigarettes were 0.76 and 0.56, respectively. Conclusion: Based on the study, it seems that smoking cigarette by parents during conception period may have a negative effect on the sex ratio. Therefore, the gender of the fetus tends to be female.
Introduction: Earlier studies throughout the world show that the ratio of live male births to live female births is declining. There are several factors associated with the reduction of male births including environmental pollutions, exposure to chemicals and smoking. The aim of this study is to determine the relationship between paternal smoking and sex ratio of children at public maternity hospitals in Bandar Abbas. Methods: The present cross-sectional study surveyed public hospitals in Bandar Abbas (Iran) from 21 March 2010 to 20 March 2011. Data was collected by census method. Seven hundred thirty mothers eligible for the completed a questionnaire and provided required information. Then sex ratio was compared in two groups. Three hundred sixty five mothers lived with smoker spouse and 365 did not. Data analysis was done by SPSS statistical software using descriptive methods, Chi-square test and logistic regression analysis. Results: Results showed that the spouses with lower education smoked cigarettes more than those with higher education. The difference was statistically significant (P<0.0001). Sex ratio for children with smoker father and the group with non-smoker father was 0.7 and 1.2, respectively; and the relationship was significant (P<0.001). Out of 365 smoker fathers, 283 cases smoked less than 20 cigarettes per day, and 82 smoked more than 20 cigarettes. The sex ratios for the babies with smoker fathers smoking less than 20 cigarettes and those smoking more than 20 cigarettes were 0.76 and 0.56, respectively. Conclusion: Based on the study, it seems that smoking cigarette by parents during conception period may have a negative effect on the sex ratio. Therefore, the gender of the fetus tends to be female.
Sex Ratio,Smoking,Sex,
Sex Ratio,Smoking,Sex,
454
459
http://hmj.hums.ac.ir/browse.php?a_code=A-10-2-1533&slc_lang=en&sid=1
Arefeh
Shahi
Arefeh
Shahi
No
Azita
Kamjoo
Azita
Kamjoo
No
Fatemeh
Dabiri
Fatemeh
Dabiri
No
Asiyeh
Pormehr Yabandeh
Asiyeh
Pormehr Yabandeh
No
Zahra
Khademi
Zahra
Khademi
No
Saeed
Hosseini
Saeed
Hosseini
No