Table 2 Blood pressure measurements and 30 day mortality or need for mechanical ventilation and/or inotropic support using different cut-off values
30 day mortality (%)Need for mechanical ventilation and/or inotropic support (%)
Systolic BP (mm Hg)
    0–6040***73.3***
    61–8929.530.4
    90+6.76.7
Diastolic BP (mm Hg)
    0–3928.6***57.1***
    41–6013.316.0
    61+7.25.7
MAP (mm Hg)
    0–4940***60***
    50–6921.524.9
    70+7.15.2
Pulse pressure (mm Hg)
    <3020***23.3***
    31–4015.617.8
    41–607.56.1
    61–807.110.2
    80+9.07.7

  • ***Kruskal–Wallis test, p<0.001.

  • BP, blood pressure; MAP, mean arterial pressure.