1. Presenter Nguyen Thanh Ha
THE ALARMING IMBALANCE OF SEX RATIO AT BIRTH IN CHI LINH, HAIDUONG PROVINCE, VIETNAM 2005 – 2010
Presenter
Nguyen Thanh Ha

2. Content
Introduction
Methodology
Results
Discussion
Recommendation

3. Introduction
Sex ratio at birth: Statistical indicator computed as: The number of boys being born per one hundred girls (UNFPA).
Normal SBR: boys every 100 girls
Important demographic indicator
Doubling-time of population
Critical demographic measures
Trends in infant morbidity (low birth weight, mortality male infants…)

6. Source: Guilmoto, 2007

8. Methodology A part of CHILILAB database
Fertility, Mortality, Marriage, Migrants, SES and basis Health Information.
Every 6 months from 2003 to date
Births from
Merge with parental information and preceding child/children
Analyze: descriptive and linear and multiple regression

9. Results

10. Results

11. Figure 2: Sex ratio at birth by the sex of previous child/children
Results
Figure 2: Sex ratio at birth by the sex of previous child/children

12. Results

13. Discussion
2005 – 2008, SBR is 112.3, equivalently to the national rate (111/100 – VPHC, 2009)
Parents choose sex of child (boy) at the first child (114/100) or the 3th one and above (176/100)
SBR is highly related to the sex of preceding child/children, mother’s education, occupation and SES.

14. Recommendation
To researchers:
To local policy makers:
To community: