The risks of complications from an upper GI endoscopy are low, but may include. 1  bleeding from the site where the doctor took the tissue samples or removed a polyp. 2  perforation in the lining of your upper GI tract. 3  an abnormal reaction to the sedative, including breathing or heart problems.
The average age of women having their first child was a record high of 26 years old in 2013, according to the Centers for Disease Control and Prevention's National Vital Statistics Report.
Then say that 20% of the 18-year-olds had a baby, 40% of the 19-year-olds, 50% of the 20-year-olds, and 30% of the 21-year-olds. Adding these up gives 140%, so the average woman in this hypothetical society has 1.4 children in her lifetime. Of course in real life women women are typically having children from ages 17 or 18 up to their 30's, and some have children even younger or older, so there are a lot more than four numbers to add together.