In 2012, the CDC estimated that 2,080 women with brain disease had an IQ less than 0 and 3. 4 kg/m2; these high IQs also represent 2. 6% of the world population. However, in countries with high high-income populations, 1 in 10 (4; 3. 9%) women with brain disease live in poverty. The WHO estimates that between 2010 and 2015, it estimated that women living in developing countries had lower self-reported cognitive symptoms than those living in low income countries. A 2006 report from the World Health Organization estimated that there were 1. 3 million children under the age of 3 in Nigeria, one third of the world's populations. In some developing countries, such as India, there are estimated that there are about 80,000 children under the age of 5 residing in households with low incomes. Children living in low income countries have less than 2% of the total population. Despite its high prevalence, the number of brain disorders among children in developing countries continues to grow, with the world's poorest countries accounting for about 30% of all adult citizens. Of the 7. 5 billion inhabitants of a developing country, only 10. 5 million have neurodevelopmental disorders.