data larynx; input stage time age year_diag death; label stage = "Stage of Disease" age = "Age at Diagnosis" year_diag = "Year of Diagnosis"; cards; 1 0.6 77 76 1 1 1.3 53 71 1 1 2.4 45 71 1 1 2.5 57 78 0 1 3.2 58 74 1 1 3.2 51 77 0 1 3.3 76 74 1 1 3.3 63 77 0 1 3.5 43 71 1 1 3.5 60 73 1 1 4 52 71 1 1 4 63 76 1 1 4.3 86 74 1 1 4.5 48 76 0 1 4.5 68 76 0 1 5.3 81 72 1 1 5.5 70 75 0 1 5.9 58 75 0 1 5.9 47 75 0 1 6 75 73 1 1 6.1 77 75 0 1 6.2 64 75 0 1 6.4 77 72 1 1 6.5 67 70 1 1 6.5 79 74 0 1 6.7 61 74 0 1 7 66 74 0 1 7.4 68 71 1 1 7.4 73 73 0 1 8.1 56 73 0 1 8.1 73 73 0 1 9.6 58 71 0 1 10.7 68 70 0 2 0.2 86 74 1 2 1.8 64 77 1 2 2 63 75 1 2 2.2 71 78 0 2 2.6 67 78 0 2 3.3 51 77 0 2 3.6 70 77 1 2 3.6 72 77 0 2 4 81 71 1 2 4.3 47 76 0 2 4.3 64 76 0 2 5 66 76 0 2 6.2 74 72 1 2 7 62 73 1 2 7.5 50 73 0 2 7.6 53 73 0 2 9.3 61 71 0 3 0.3 49 72 1 3 0.3 71 76 1 3 0.5 57 74 1 3 0.7 79 77 1 3 0.8 82 74 1 3 1 49 76 1 3 1.3 60 76 1 3 1.6 64 72 1 3 1.8 74 71 1 3 1.9 72 74 1 3 1.9 53 74 1 3 3.2 54 75 1 3 3.5 81 74 1 3 3.7 52 77 0 3 4.5 66 76 0 3 4.8 54 76 0 3 4.8 63 76 0 3 5 59 73 1 3 5 49 76 0 3 5.1 69 76 0 3 6.3 70 72 1 3 6.4 65 72 1 3 6.5 65 74 0 3 7.8 68 72 1 3 8 78 73 0 3 9.3 69 71 0 3 10.1 51 71 0 4 0.1 65 72 1 4 0.3 71 76 1 4 0.4 76 77 1 4 0.8 65 76 1 4 0.8 78 77 1 4 1 41 77 1 4 1.5 68 73 1 4 2 69 76 1 4 2.3 62 71 1 4 2.9 74 78 0 4 3.6 71 75 1 4 3.8 84 74 1 4 4.3 48 76 0 ; run; proc format; value stage 1 = "stage 1" 2 = "stage 2" 3 = "stage 3" 4 = "stage 4"; value dead 0 = "Alive" 1 = "Dead"; run;