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Table 5 Results of the closed testing procedure

From: Validation and updating of risk models based on multinomial logistic regression

Step

df

Temporal updating (SGH)

Geographical updating (QCCH)

1. Original model vs refitting

8

Δℓ = 241.6, p < 0.0001

Δℓ = 212.1, p < 0.0001

2. Intercept recalibration vs refitting

6

Δℓ = 169.1, p < 0.0001

Δℓ = 172.7, p < 0.0001

3. Logistic recalibration vs refitting

2

Δℓ = 20.2, p < 0.0001

Δℓ = 22.8, p < 0.0001

  1. df degrees of freedom, SGH St. George’s Hospital, QCCH Queen Charlotte’s and Chelsea Hospital, Δℓ difference in −2 log-likelihood
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Diagnostic and Prognostic Research

ISSN: 2397-7523

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