Evidencio validations - Evidencio
External validation of the in 314 Asians patients
A total of 314 patients out of China (Singapore, South Korea, and Taiwan) were included in the external validation set. The predictive accuracy (discrimination) of the nomogram was measured via a concordance index (c-index).A calibration plot was drawn to compare how well the predicted probabilities from the nomogram matched the actual probabilities. 
Research authors: None
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Discrimination

Rows included 0
C-index 0
Brier score Not specified
Scaled Brier score Not specified

Classification plot

Not specified

Calibration

Regression coefficient 0
Intercept 0
Hosmer-Lemeshow GOF Not specified
 

Calibration plot

Histogram

Not specified

Decision curve

Not specified
Comparison
Original study population: 548
Validation study population: 314

Categorical characteristics

Name Subset / Group Nr. of patients Validation P-Value
Performance score 0 318 173 0.4318
1-2 230 141
Primary cancer diagnosis Lung 327 70 0.0005
Breast 50 84
HNSCC 34 8
Colon 32 61
Gynecologic 24 18
Stomach 20 15
Others 62 58
Alcohol consumption <1 per week 461 275 0.1928
≥1 per week 87 39
History of motion sickness Yes 23 53 < 0.0001
No 525 261
Emetogenicity of chemotherapy HEC 474 141 < 0.0001
MEC 74 173
Anitemetic therapy Single-agent 40 25 0.0095
Doublet 309 206
Triplet 199 83
History of vomiting during pregnancy in females Yes 48 81 < 0.0001
No 166 76

Continuous characteristics

Name LL Q1 Median Q3 UL Unit
Original Validation Age 20
22

55
57

77
85
years
Original Validation Body surface area 1.18
1.31

1.67
1..71

2.18
2.19
m2
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