Fig. 2

Estimated hazard rates: a) overall, b) stratified by SIPI≤50 or > 50. In both panels, dots represent the raw hazard estimates and lines represents a non-parametric smoothing function (thin lines are 95% confidence limits). In panel b, squares and dashed lines refer to admissions with SIPI≤50 while triangles and dotted lines refer to admissions with SIPI> 50