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. 2011 Feb 3;342:d199. doi: 10.1136/bmj.d199

Table 9.

 Mortality among acute medical care patients whose case notes were explicitly reviewed before (epoch 1) and after (epoch 3) phase 2 of Safer Patients Initiative (SPI2)

Control hospitals SPI2 hospitals
Epoch 1 Epoch 2 Epoch 3* Epoch 1 Epoch 2 Epoch 3*
No of patients 120 123 112 116 117 114
Deaths 18 24 24 9 15 7
% mortality (SE) 15 (3.3) 20 (3.6) 21 (3.9) 8 (2.5) 13 (3.1) 6 (2.3)
Mean (SD) age (years) 77.6 (7.7) 81.1 (7.9) 79.6 (8.0) 77.7 (7.6) 78.1 (7.1) 80.6 (7.8)
% women 63.3 53.7 53.6 53.4 50.4 52.6
Mean No of comorbidities 2.9 3.1 2.6 2.8 3.0 2.9

*After intervention.