id sex age bt
108313 0 NA 0
108410 0 NA 0
108480 0 NA 0
108661 1 NA 0
108681 0 6 1
108696 0 32 1
108702 0 35 1
108714 0 33 1
108720 1 52 1
12160 0 NA 0
209287 1 25 1
