Abstract 798 Table 1

Performance of binary NHS 111 triage (ambulance or urgent assessment 4 hours or less) for composite outcome (death or organ support)

Adverse outcome up to 30 days (3%, 2.8-3.2%)
N=40, 261 Adverse OutcomeNo Adverse Outcome
Ambulance/urgent assessment 890 15, 035 Sensitivity 74.2% (71.6- 76.6%)
Positive Predictive Value
5.6% (5.2 - 6%)
Self-care/non-urgent assessment 310 24, 025 Specificity 61.5% (61% - 62%)
Negative Predictive Value
98.7% (98.6 - 98.9%)