Table 3 Anderson–Gill models for brain abscess and ischaemic stroke
ndfR2Wald test p valueRobust score p valueHazard ratio for variable (95% CI)p value for variable in model
Untreated patients
    Brain abscess21720.0471.2×10−31.76×10−2
        Gender (male)3.61 (1.58, 8.25)2.4×10−3
        Deep venous thrombosis3.35 (1.32, 8.50)0.011
    Ischaemic stroke17810.0366.1×10−43.20×10−3
        PAP mean (mm Hg)0.89 (0.83, 0.95)6.2×10−4
All patients*
    Brain abscess39210.0176.3×10−39.50×10−3
        Gender (male)3.49 (1.43, 8.33)6.3×10−3
    Ischaemic stroke25040.0514.7×10−52.00×10−2
        PAP mean (mm Hg)0.85 (0.79, 0.92)5.0×10−5
        Hb (g/dl)0.95 (0.72, 1.27)0.75
        Embolisation1.7×10−4 (7.55×10−8, 0.4)0.028
        Hb (g/dl) × embolisation1.84 (1.1, 3.07)0.021
  • *Includes pre and post embolisation periods.

  • df degrees of freedom; Hb, haemoglobin; n, number of data points; PAP, pulmonary artery pressure.