col 1 = time to event (days)
col 2 = event (0=censoring, 1=TE OR death)
col 3 = CD4 count at baseline
col 4 = drug indicator (0=placebo, 1=pyrimethamine)

These data are for monitoring point 1 (1/15/91):

***********

   1 0   55  1
   5 0  125  0
   8 0   99  0
  11 0  150  1
  12 0   60  0
  12 0   10  0
  13 0   38  1
  13 0   28  1
  18 0   42  0
  25 0   29  0
  27 0  171  0
  27 0  197  0
  32 0  101  0
  40 0  126  1
  40 0  170  1
  41 0   54  1
  41 0  113  1
  46 0  182  1
  47 0   92  1
  47 0   15  0
  49 0   25  1
  57 0   17  1
  61 0   65  0
  61 0    6  0
  63 0  100  1
  67 0    7  1
  68 0  149  1
  70 0  117  1
  70 0  130  0
  71 0   49  1
  74 0   90  0
  76 0    3  0
  76 0  165  1
  76 0   71  0
  83 0   79  1
  90 0  166  1
  91 0   42  1
  92 0   26  1
  95 0   49  1
  99 0  168  0
 104 0   22  1
 106 0  150  1
 113 0  166  1
 116 0   67  1
 118 0  190  0
 120 0   10  1