Summary Box: Humana reports 1st-qtr results
THE RESULTS: First-quarter net income at Humana Inc. increased 22 percent due partly to enrollment gains in its Medicare offerings and lower health care use in employer-based insurance plans.
MEDICARE BUSINESS: Membership in Humana's individual Medicare Advantage offerings rose 9 percent in the quarter. Group Medicare Advantage membership for plans sold to employers increased 3 percent. Medicare Advantage plans are privately run versions of the government's Medicare program.
HEALTH CARE USE: Humana's quarterly earnings benefited by 31 cents per share because claims leftover from previous quarters came in lower than expected.