A total of 28,100 Connecticut residents will lose their health coverage in 2009 as a result of losing their jobs, according to an estimate by Families USA to be released in a report. By the end of the year, the consumer advocacy group projects that Connecticut will have 303,000, or 14.1% of all adults between the ages of 19 and 64 without healthcare benefits. That compares with 275,600, or 12.9%, in 2008.