The largest US health insurance company UnitedHealth Group in the second quarter increased its net profit by 28% year-on-year to $2 billion 920 million. Adjusted earnings rose to 3 dollars 14 cents per share, the analystshad predicted 3 dollars 4 cents per share. Revenue amounted to 56 billion 100 million dollars, increased by 12%. The number of insured persons under medical insurance programs for the 12 months to June increased by 2 million 200 thousand people. The insurance business of the company increased its revenue by $5 billion, the Optum unit, which provides technology and consulting services in the field of medical insurance, - by $2 billion.