Significant intermixing has taken place such that there are few pure ethnic Chinese, and those of partially mixed Chinese ancestry account for as much as a third to a half of the Thai population.
Thailand's Disease Control Department estimates that only 23 percent of Thai children under 15 can swim.
The United Nations classifies Thailand as an "aging society" (one-tenth of the population above 60), on track to become an "aged society" (one-fifth of the population above 60) by 2025.
Ninety percent of them are ages 20–24, the youngest range of the workforce.
An aggressive public education campaign begun in the early-1990s reduced the number of new HIV infections from 150,000 to 25,000 annually.
Today, over 700,000 Thai are HIV or AIDS positive, approximately two percent of adult men and 1.5 percent of adult women.