These health-related causes and impacts of elevated hematocrit levels have been reported: 1  Fall in plasma levels. 2  Sleep apnea. 3  Dehydration. 4  In cases of dengue fever, a high hematocrit is a danger sign of an increased risk of dengue shock syndrome.
The Hmong traditionally farmed in the mountainous areas of China, Vietnam, Laos, and Thailand. Most of the Hmong were subsistence farmers who grew only enough food to feed their families, because farming was difficult in the mountainous regions where most of them lived.
In the late 1980s many Hmong people came to the United States after being sponsored by the Lutheran church. The majority relocated to St. Paul, Minnesota and Fresno, California. There is also heavy Hmong populations in Wisconsin and some in Pennsylvania. Although there is not a single government out there that will acknowledge it, there are still many Hmong people in Laos who are being persecuted.