rownames,time,status,sex,age,year,thickness,ulcer
1,10,3,1,76,1972,6.76,1
2,30,3,1,56,1968,0.65,0
3,35,2,1,41,1977,1.34,0
4,99,3,0,71,1968,2.9,0
5,185,1,1,52,1965,12.08,1
6,204,1,1,28,1971,4.84,1
7,210,1,1,77,1972,5.16,1
8,232,3,0,60,1974,3.22,1
9,232,1,1,49,1968,12.88,1
10,279,1,0,68,1971,7.41,1
11,295,1,0,53,1969,4.19,1
12,355,3,0,64,1972,0.16,1
13,386,1,0,68,1965,3.87,1
14,426,1,1,63,1970,4.84,1
15,469,1,0,14,1969,2.42,1
16,493,3,1,72,1971,12.56,1
17,529,1,1,46,1971,5.8,1
18,621,1,1,72,1972,7.06,1
19,629,1,1,95,1968,5.48,1
20,659,1,1,54,1972,7.73,1
21,667,1,0,89,1968,13.85,1
22,718,1,1,25,1967,2.34,1
23,752,1,1,37,1973,4.19,1
24,779,1,1,43,1967,4.04,1
25,793,1,1,68,1970,4.84,1
26,817,1,0,67,1966,0.32,0
27,826,3,0,86,1965,8.54,1
28,833,1,0,56,1971,2.58,1
29,858,1,0,16,1967,3.56,0
30,869,1,0,42,1965,3.54,0
31,872,1,0,65,1968,0.97,0
32,967,1,1,52,1970,4.83,1
33,977,1,1,58,1967,1.62,1
34,982,1,0,60,1970,6.44,1
35,1041,1,1,68,1967,14.66,0
36,1055,1,0,75,1967,2.58,1
37,1062,1,1,19,1966,3.87,1
38,1075,1,1,66,1971,3.54,1
39,1156,1,0,56,1970,1.34,1
40,1228,1,1,46,1973,2.24,1
41,1252,1,0,58,1971,3.87,1
42,1271,1,0,74,1971,3.54,1
43,1312,1,0,65,1970,17.42,1
44,1427,3,1,64,1972,1.29,0
45,1435,1,1,27,1969,3.22,0
46,1499,2,1,73,1973,1.29,0
47,1506,1,1,56,1970,4.51,1
48,1508,2,1,63,1973,8.38,1
49,1510,2,0,69,1973,1.94,0
50,1512,2,0,77,1973,0.16,0
51,1516,1,1,80,1968,2.58,1
52,1525,3,0,76,1970,1.29,1
53,1542,2,0,65,1973,0.16,0
54,1548,1,0,61,1972,1.62,0
55,1557,2,0,26,1973,1.29,0
56,1560,1,0,57,1973,2.1,0
57,1563,2,0,45,1973,0.32,0
58,1584,1,1,31,1970,0.81,0
59,1605,2,0,36,1973,1.13,0
60,1621,1,0,46,1972,5.16,1
61,1627,2,0,43,1973,1.62,0
62,1634,2,0,68,1973,1.37,0
63,1641,2,1,57,1973,0.24,0
64,1641,2,0,57,1973,0.81,0
65,1648,2,0,55,1973,1.29,0
66,1652,2,0,58,1973,1.29,0
67,1654,2,1,20,1973,0.97,0
68,1654,2,0,67,1973,1.13,0
69,1667,1,0,44,1971,5.8,1
70,1678,2,0,59,1973,1.29,0
71,1685,2,0,32,1973,0.48,0
72,1690,1,1,83,1971,1.62,0
73,1710,2,0,55,1973,2.26,0
74,1710,2,1,15,1973,0.58,0
75,1726,1,0,58,1970,0.97,1
76,1745,2,0,47,1973,2.58,1
77,1762,2,0,54,1973,0.81,0
78,1779,2,1,55,1973,3.54,1
79,1787,2,1,38,1973,0.97,0
80,1787,2,0,41,1973,1.78,1
81,1793,2,0,56,1973,1.94,0
82,1804,2,0,48,1973,1.29,0
83,1812,2,1,44,1973,3.22,1
84,1836,2,0,70,1972,1.53,0
85,1839,2,0,40,1972,1.29,0
86,1839,2,1,53,1972,1.62,1
87,1854,2,0,65,1972,1.62,1
88,1856,2,1,54,1972,0.32,0
89,1860,3,1,71,1969,4.84,1
90,1864,2,0,49,1972,1.29,0
91,1899,2,0,55,1972,0.97,0
92,1914,2,0,69,1972,3.06,0
93,1919,2,1,83,1972,3.54,0
94,1920,2,1,60,1972,1.62,1
95,1927,2,1,40,1972,2.58,1
96,1933,1,0,77,1972,1.94,0
97,1942,2,0,35,1972,0.81,0
98,1955,2,0,46,1972,7.73,1
99,1956,2,0,34,1972,0.97,0
100,1958,2,0,69,1972,12.88,0
101,1963,2,0,60,1972,2.58,0
102,1970,2,1,84,1972,4.09,1
103,2005,2,0,66,1972,0.64,0
104,2007,2,1,56,1972,0.97,0
105,2011,2,0,75,1972,3.22,1
106,2024,2,0,36,1972,1.62,0
107,2028,2,1,52,1972,3.87,1
108,2038,2,0,58,1972,0.32,1
109,2056,2,0,39,1972,0.32,0
110,2059,2,1,68,1972,3.22,1
111,2061,1,1,71,1968,2.26,0
112,2062,1,0,52,1965,3.06,0
113,2075,2,1,55,1972,2.58,1
114,2085,3,0,66,1970,0.65,0
115,2102,2,1,35,1972,1.13,0
116,2103,1,1,44,1966,0.81,0
117,2104,2,0,72,1972,0.97,0
118,2108,1,0,58,1969,1.76,1
119,2112,2,0,54,1972,1.94,1
120,2150,2,0,33,1972,0.65,0
121,2156,2,0,45,1972,0.97,0
122,2165,2,1,62,1972,5.64,0
123,2209,2,0,72,1971,9.66,0
124,2227,2,0,51,1971,0.1,0
125,2227,2,1,77,1971,5.48,1
126,2256,1,0,43,1971,2.26,1
127,2264,2,0,65,1971,4.83,1
128,2339,2,0,63,1971,0.97,0
129,2361,2,1,60,1971,0.97,0
130,2387,2,0,50,1971,5.16,1
131,2388,1,1,40,1966,0.81,0
132,2403,2,0,67,1971,2.9,1
133,2426,2,0,69,1971,3.87,0
134,2426,2,0,74,1971,1.94,1
135,2431,2,0,49,1971,0.16,0
136,2460,2,0,47,1971,0.64,0
137,2467,1,0,42,1965,2.26,1
138,2492,2,0,54,1971,1.45,0
139,2493,2,1,72,1971,4.82,1
140,2521,2,0,45,1971,1.29,1
141,2542,2,1,67,1971,7.89,1
142,2559,2,0,48,1970,0.81,1
143,2565,1,1,34,1970,3.54,1
144,2570,2,0,44,1970,1.29,0
145,2660,2,0,31,1970,0.64,0
146,2666,2,0,42,1970,3.22,1
147,2676,2,0,24,1970,1.45,1
148,2738,2,0,58,1970,0.48,0
149,2782,1,1,78,1969,1.94,0
150,2787,2,1,62,1970,0.16,0
151,2984,2,1,70,1969,0.16,0
152,3032,2,0,35,1969,1.29,0
153,3040,2,0,61,1969,1.94,0
154,3042,1,0,54,1967,3.54,1
155,3067,2,0,29,1969,0.81,0
156,3079,2,1,64,1969,0.65,0
157,3101,2,1,47,1969,7.09,0
158,3144,2,1,62,1969,0.16,0
159,3152,2,0,32,1969,1.62,0
160,3154,3,1,49,1969,1.62,0
161,3180,2,0,25,1969,1.29,0
162,3182,3,1,49,1966,6.12,0
163,3185,2,0,64,1969,0.48,0
164,3199,2,0,36,1969,0.64,0
165,3228,2,0,58,1969,3.22,1
166,3229,2,0,37,1969,1.94,0
167,3278,2,1,54,1969,2.58,0
168,3297,2,0,61,1968,2.58,1
169,3328,2,1,31,1968,0.81,0
170,3330,2,1,61,1968,0.81,1
171,3338,1,0,60,1967,3.22,1
172,3383,2,0,43,1968,0.32,0
173,3384,2,0,68,1968,3.22,1
174,3385,2,0,4,1968,2.74,0
175,3388,2,1,60,1968,4.84,1
176,3402,2,1,50,1968,1.62,0
177,3441,2,0,20,1968,0.65,0
178,3458,3,0,54,1967,1.45,0
179,3459,2,0,29,1968,0.65,0
180,3459,2,1,56,1968,1.29,1
181,3476,2,0,60,1968,1.62,0
182,3523,2,0,46,1968,3.54,0
183,3667,2,0,42,1967,3.22,0
184,3695,2,0,34,1967,0.65,0
185,3695,2,0,56,1967,1.03,0
186,3776,2,1,12,1967,7.09,1
187,3776,2,0,21,1967,1.29,1
188,3830,2,1,46,1967,0.65,0
189,3856,2,0,49,1967,1.78,0
190,3872,2,0,35,1967,12.24,1
191,3909,2,1,42,1967,8.06,1
192,3968,2,0,47,1967,0.81,0
193,4001,2,0,69,1967,2.1,0
194,4103,2,0,52,1966,3.87,0
195,4119,2,1,52,1966,0.65,0
196,4124,2,0,30,1966,1.94,1
197,4207,2,1,22,1966,0.65,0
198,4310,2,1,55,1966,2.1,0
199,4390,2,0,26,1965,1.94,1
200,4479,2,0,19,1965,1.13,1
201,4492,2,1,29,1965,7.06,1
202,4668,2,0,40,1965,6.12,0
203,4688,2,0,42,1965,0.48,0
204,4926,2,0,50,1964,2.26,0
205,5565,2,0,41,1962,2.9,0