Sex imbalance at birth in Vietnam: Rapid increase followed by stabilization

Son preference has led to a deficit of female births in many Asian countries since the 1980s, driven in part by the decrease in fertility and the development of modern sex determination technologies. But will this trend continue? While sex ratios at birth are returning to normal in countries such as South Korea and China, in others, future trends are difficult to predict. In this article, the authors examine the sex imbalance at birth in Vietnam since the early 2000s. They reveal geographical and socioeconomic disparities and show that after a period of increase it now appears to be levelling off, signalling a possible future trend reversal