Table 4 Intra-observer agreement for MTS and ESI, for each hospital and experience level of ED nurses at the MeSpTw
Unweighted kappa (95% CI)Quadratic-weighted kappa (95% CI)
MTS (n  =  11)0.84* (0.73 to 0.94)0.90 (0.83 to 0.96)
    MeSpTw (n  =  8)0.91 (0.83 to 0.98)0.94 (0.88 to 0.99)
        <5 years experience0.91 (0.74 to 1.00)0.94 (0.83 to 1.00)
        >5 years experience0.91 (0.78 to 1.00)0.93 (0.83 to 1.00)
    AMC (n  =  3)0.65 (0.30 to 1.00)0.79 (0.59 to 0.99)
ESI (n  =  9)0.65* (0.59 to 0.72)0.85 (0.80 to 0.90)
    OLVG (n  =  6)0.65 (0.56 to 0.74)0.84 (0.78 to 0.90)
    AMC (n  =  3)0.66 (0.38 to 0.95)0.88 (0.70 to 1.00)
  • *Significance level p<0.05, between Manchester Triage System (MTS) and Emergency Severity Index (ESI). AMC, Academic Medical Centre, Amsterdam; ED, emergency department; MeSpTw, Medical Spectrum Twente, Enschede; OLVG, Onze Lieve Vrouwe Gasthuis, Amsterdam.

  • *Significance level p<0.05, between Manchester Triage System (MTS) and Emergency Severity Index (ESI). AMC, Academic Medical Centre, Amsterdam; ED, emergency department; MeSpTw, Medical Spectrum Twente, Enschede; OLVG, Onze Lieve Vrouwe Gasthuis, Amsterdam.