How likely to have a boy?

Ever wondered how likely are you to conceive a baby boy?

The opponents of gender selection will repeat ad nauseam that there is a 50/50 percent chance to have either a baby boy or a girl. They will a priori refuse even a thought of our influencing - how ever slightly – on conceiving a baby of a certain sex. Because… It’s all a matter of chance!

Is it?

Let’s take a look on some highlights from USA Census Bureau report called Trend Analysis of the Sex Ratio at Birth in the United States issued by their Center for Disease Control and Prevention (CDC).
These are no old wives’ tales!

CDC was examining total sex ratio at birth (that’s the number of male births divided by female births times 1,000) for over six decades.

• In 2004, there were 94,232 more boys than girls born in the US.
  
• But, women still outnumber men: In 2003, the Census Bureau estimated a total of 144,513,361 females of all ages, compared to 138,396,524 males.
  
• Since 1940, an average of 91,685 more male babies have been born each year than females.
  
• The highest sex birth ratio occurred in 1946.
  
• The lowest sex birth ratio occurred in 1991 and 2001.
  
• Older mothers have the lowest total sex birth ratios. For some reason, if you are older than 40, your chances for conceiving a baby boy are significantly decreasing.
  
• Mothers 15 to 19 years of age had the highest sex birth ratio.
  
• Chinese and Filipino mothers had the highest differences between the number of boys born versus girls.
  
• Non-Hispanic black and American Indian mothers had the lowest differences between the number of boys born versus girls.
  
• The more children a woman has, the more likely she is going to give birth to an equal number of boys and girls.