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Table 3 Undertriage and overtriage rates during the pre- and post-SATS periods and test characteristics (of prior triage practice and SATS) at KNH. Sample sizes for each population are as defined in Table 2

From: Implementation and performance of the South African Triage Scale at Kenyatta National Hospital in Nairobi, Kenya

  Pre-SATS Post-SATS p value
Undertriage (overall) 3.8% 7.8% 0.20
 Adults (> 12 years) 4.3% 8.2% 0.06
 Pediatric (≤ 12 years) 0.0% 7.3% 0.07
Overtriage (overall) 70.9% 62.3% < 0.01
 Adults (> 12 years) 69.8% 61.1% < 0.01
 Pediatric (≤ 12 years) 77.5% 71.4% 0.40
Overall
 Sensitivity 96.2 92.2  
 Specificity 29.1 37.7  
 Positive predictive value (admission) 95.6 91.6  
 Negative predictive value (discharge) 91.2 89.2