No statistically significant differences were observed in other end points , except for a higher 6-month mortality rate in the medical subgroup : 54 % ( 95 % CI , 40 % -67 % ) in the IMHP group vs 35 % ( 95 % CI , 22 % -49 % ) in the HP group ( P = .04 ) , with a hazard ratio of 1.57 ( 95 % CI , 1.03-2 .39 ; P = .04 ) for 6-month mortality adjusted for age and Acute Physiology and Chronic Health Evaluation II score comparing the groups .