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Table 2 Distribution of the type and severity of patient disease/condition, staffing ratios and length of stay on the day of evaluation

From: Impact of random safety analyses on structure, process and outcome indicators: multicentre study

  Global Hospital 1 Hospital 2 p
N % N % N %
Patient type      <0.0001
 Medical 570 47.0 242 57.6 328 41.3  
 Neurosurgery 118 9.7 12 2.9 106 13.4  
 Surgical 397 32.7 146 34.8 251 31.6  
 Traumatic 129 10.6 20 4.7 109 13.7  
PNR        <0.0001
 ≤ 2:1 787 64.8 16 3.8 771 97.1  
 >2:1 427 35.2 404 96.2 23 2.9  
PPR        <0.0001
 ≤2:1 143 11.8 29 6.9 114 14.4  
 2–3:1 756 62.3 240 57.1 516 65.0  
 >3:1 315 25.9 151 36.0 164 20.6  
SOFA        0.001
 <4 723 59.6 282 67.1 441 55.6  
 4–7 357 29.3 97 23.1 260 32.7  
 8–12 110 9.1 31 7.4 79 9.9  
 ≥12 24 2.0 10 2.4 14 1.8  
Length of stay <0.0001
 <7 532 43.8 227 54.0 305 38.4  
 7–14 237 19.5 62 14.8 175 22.0  
 14–21 146 12.0 29 6.9 117 14.8  
 ≥21 299 24.7 102 24.3 197 24.8  
  1. PNR patient:nurse ratio, PPR patient:physician ratio, SOFA Sequential Organ Failure Assessment