Fig. 1

Calculated optimal mean optimal NHPPD’s versus actual NHPPD’s per study ward. The green line corresponds with the grand mean optimal NHPPD and the red line with the grand mean actual NHPPD
Calculated optimal mean optimal NHPPD’s versus actual NHPPD’s per study ward. The green line corresponds with the grand mean optimal NHPPD and the red line with the grand mean actual NHPPD