Health insurance: Premium revenue increased 13% to $417 million , and health underwriting margin increased 12% to $95 million . The health underwriting margin was about 23% of premium, consistent with the year-ago quarter. Svoboda said the company expects health premium growth of 14% to 17% for the full year, citing Medicare Supplement rate increases and strong sales at United American and Family Heritage.Life insurance: Premium revenue increased 3% to $853 million . Life underwriting margin rose 3% to $349 ...