“…Lower socioeconomic status, 14 , 39 , 41 , 59 female sex, 21 , 34 , 35 , 36 , 38 , 39 , 40 , 41 , 43 , 45 , 46 , 48 , 53 , 60 , 61 , 62 , 63 and increased age 21 , 22 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 43 , 44 , 45 , 46 , 48 , 51 , 53 , 54 , 59 , 63 , 64 , 65 were also risk factors for longer LOS.…”