Fig. 1

Aggregated quarterly fall rates and pressure ulcer rates. Quarterly fall rates were aggregated over 1240 units with all 36 quarters of fall data in 2004–2012 and pressure ulcer rates were aggregated over 848 units with all 36 quarters of pressure ulcer data. Top plots are change scores from Quarter 1 2004 and bottom plots are the change scores with the trend removed (minus annual means)