group   weeks   relapse  
  1.   treated       6      TRUE  
  2.   treated       6      TRUE  
  3.   treated       6      TRUE  
  4.   treated       6     FALSE  
  5.   treated       7      TRUE  
  6.   treated       9     FALSE  
  7.   treated      10      TRUE  
  8.   treated      10     FALSE  
  9.   treated      11     FALSE  
 10.   treated      13      TRUE  
 11.   treated      16      TRUE  
 12.   treated      17     FALSE  
 13.   treated      19     FALSE  
 14.   treated      20     FALSE  
 15.   treated      22      TRUE  
 16.   treated      23      TRUE  
 17.   treated      25     FALSE  
 18.   treated      32     FALSE  
 19.   treated      32     FALSE  
 20.   treated      34     FALSE  
 21.   treated      35     FALSE  
 22.   control       1      TRUE  
 23.   control       1      TRUE  
 24.   control       2      TRUE  
 25.   control       2      TRUE  
 26.   control       3      TRUE  
 27.   control       4      TRUE  
 28.   control       4      TRUE  
 29.   control       5      TRUE  
 30.   control       5      TRUE  
 31.   control       8      TRUE  
 32.   control       8      TRUE  
 33.   control       8      TRUE  
 34.   control       8      TRUE  
 35.   control      11      TRUE  
 36.   control      11      TRUE  
 37.   control      12      TRUE  
 38.   control      12      TRUE  
 39.   control      15      TRUE  
 40.   control      17      TRUE  
 41.   control      22      TRUE  
 42.   control      23      TRUE