According to data gathered since the first Minnesota Heart Survey (MHS) in 1980-1982, total cholesterol levels have decreased among middle-aged and older Americans but have leveled off, or in some cases increased, in the 25-to-34 age group. The MHS, which was conducted 5 times between 1980 and 2002, included ~5000 randomly selected adults at each testing. During that time, significant decreases in overall cholesterol levels were noted in all age groups except the 25-to 34-year-olds, who instead showed more increases than their older counterparts. The study also showed that more than half of those who participated who had cholesterol readings of > 200 mg/dL, classified as borderline "high-risk,"were not even aware of their condition.
Cholesterol readings for women in the younger age group increased by 1% between the studies done in 1990-1992 and 1995-1997, and again between 1995-1997 and 2000- 2002. Men in the same age group experienced a different trend, with a 4% increase during the first time frame, followed by a 3% decrease during the second period. One explanation offered for the decrease was that more older people are taking cholesterol-lowering drugstheir usage doubled in the over- 35 groupbut it is "almost nonexistent for the 25-to 34-year-olds, who do not perceive the risk of"high cholesterol levels, according to researchers. The findings were published in the December 13, 2005, issue of Circulation.
Although the annual HIV diagnosis rate between 2010 and 2014 decreased for black individuals by 16.2%, blacks remain disproportionately affected by HIV/AIDS.
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