Use for Questions 61-151 The table below is from the article "A Randomized Clinical Trial of the Effect of Del Perioperative Increase of Oxygen Delivery on Mortality in High-Risk Surgical Patien et al. The abstract of the article can be found hereLinks to an external site.- Table 4.-Baseline Characteristics for Patients Randomized to the Protocol and Control Groups Protocol Control Characteristic in 531 (n-54) Median age. y (25th. 75th contiles) 60 161, 77) 72 5 166, BO) Ser, No. [) 2074) 14 (29) 21 (39) moner within 5 y. No. () 32 160 4) 28 (51.8) pertension, No. () 21 (30 9) 9(170) 10 (18 5) "Neoplastic disease, No. () 13 (24 5) 13 (241) Cardiovascular disease. No. () 13 (79 6) Respiratory disease. No. ( ) 17 (32.1) 15 278)