Controls also were likelier than the test group to be admitted to the hospital ( 0.5 vs 0.2 admissions per patient in the test group ) , spend more days hospitalized ( 2.8 vs 0.5 bed days per patient ) , and visit the emergency room ( 0.73 vs 0.66 visits per patient ) and clinic ( 6.6 vs 3.6 visits per patient ) .