The global indices of log Calabi-Yau varieties --A supplement to   Fujino's paper: The indices of log canonical singularities--
  This paper gives the all possible global indices of log Calabi-Yau 3-folds with standard coefficients on the boundaries and having lc, non-klt singularities. This follows easily from the discussion in the paper: The indices of log canonical singularities by Fujino (AG/9909035). 
Shihoko Ishii