Compared with Caucasians, the risk of birth defect was lower in African–Americans (RR = 0.9, CI 0.8–0.9) and Hispanics (RR = 0.9, CI 0.8–0.9). The risk of birth defects was similar in Caucasians and Asians (Table 1).
What country in the world has the most birth defects?
According to the report, Sudan has the most birth defects, with 82 per 1,000 live births, compared with 39.7 in France, which had the lowest number among the 193 countries surveyed.31 ene 2006
Is Down syndrome more common in one ethnicity?
Results: The odds ratio and population attributable risk of Down syndrome due to maternal age of 35 years or older were highest for Mexican Americans, intermediate for African Americans, and lowest for non-Hispanic Whites.
Who is likely to have birth defects?
Birth defects are common. Between 2% and 3% of infants have one or more defects at birth. That number increases to 5% by age one (not all defects are discovered directly after your child's birth). One out of every 33 babies born in the United States are affected by birth defects.4 feb 2021
What race has the most birth defects?
American Indians had the highest rates of lethal birth defects, followed by Asians, Hispanics, and blacks. The variation in rate of lethal birth defects among racial/ethnic groups may have been related to both incidence and survival.
What group is most affected by Down syndrome?
Eighty percent of children with either trisomy 21 or mosaicism Down syndrome are born to mothers who are younger than 35 years old. Younger women have babies more frequently, so the number of babies with Down syndrome are higher in that group.
What are 4 characteristics of Down syndrome?
Short neck, with excess skin at the back of the neck. Flattened facial profile and nose. Small head, ears, and mouth. Upward slanting eyes, often with a skin fold that comes out from the upper eyelid and covers the inner corner of the eye.31 ene 2017
How many levels of Down syndrome are there?
There are three types of Down syndrome: Trisomy 21 (nondisjunction), Mosaicism, and Translocation. Below is a chart that outlines the cell division process of regular cells.
What is the most mild form of Down syndrome?
Mosaic Down syndrome occurs in about 2 percent of all Down syndrome cases. People with mosaic Down syndrome often, but not always, have fewer symptoms of Down syndrome because some cells are normal.
Are there different levels of severity of Down syndrome?
Each person with Down syndrome is an individual — intellectual and developmental problems may be mild, moderate or severe. Some people are healthy while others have significant health problems such as serious heart defects. Children and adults with Down syndrome have distinct facial features.8 mar 2018
Who is more likely to get Down syndrome?
Women who are 35 years or older when they become pregnant are more likely to have a pregnancy affected by Down syndrome than women who become pregnant at a younger age. However, the majority of babies with Down syndrome are born to mothers less than 35 years old, because there are many more births among younger women.6 abr 2021