Table 1.
Table 2.
Characteristics of previous validation studies.
Table 3.
Characteristics of the prognostic models.
Table 4.
Demographic characteristics of the original and validation samples.
Fig 1.
Receiver operating characteristics (ROC) curves for survival and independence, for the total sample.
Optimally, the curve should lie towards the upper left corner of the plot. Survival: assessed at 30 days for the SSVMod and at 100 days for the NIHSSMod. Independence: assessed at 6 months for the SSVMod and at 3 months for the NIHSSMod.
Table 5.
C-statistics for survival and independence.
Table 6.
C-statistics for survival and independence in subgroups defined by type of stroke (ischaemic and haemorrhagic).
The p values from the tests for equality of the C-statistics should be interpreted with regard to the differing denominators of ischaemic and haemorrhagic strokes.
Table 7.
Calibration in the large of the models.
Data are counts (%); p values are derived from a logistic regression model. Figures are given for all patients and separately for those with ischaemic and haemorrhagic strokes.
Fig 2.
Calibration plots for survival and independence, for the total sample and based on deciles of patient numbers.
Survival: assessed at 30 days for the SSVMod and at 100 days for the NIHSSMod. Independence: assessed at 6 months for the SSVMod and at 3 months for the NIHSSMod. For illustrative clarity, the origins for the axes vary between plots.
Table 8.
Recalibration of the SSVMod and the NIHSSMod.