      left_buffer right_buffer precision (Intercept)  severity          age
2.5%   0.07142857   0.07142857  2.201476 -0.76076143 0.2997927 -0.012266314
50%    0.07142857   0.07142857  2.294415 -0.47196006 0.3361209 -0.011025895
97.5%  0.07142857   0.07142857  2.481968 -0.07421716 0.3519739 -0.007347752
