Table 5 Assessment of discriminant validity of NVSA^© scores with the EQ-5D-5 L: Week 1

Number of Days or Vomiting or Nausea

s = 0.09

p = 0.40

s = 0.19

p = 0.08

s = 0.21

p = 0.06

s = 0.36

p = 0.0009

s = 0.39

p = 0.0003

s = − 0.28

p = 0.01

Number of Vomiting Episodes

s = −0.06

p = 0.59

s = − 0.01

p = 0.93

s = 0.11

p = 0.34

s = 0.22

p = 0.05

s = 0.27

p = 0.01

s = − 0.24

p = 0.03

Mean Severity of Nausea

s = 0.08

p = 0.50

s = 0.15

p = 0.19

s = 0.20

p = 0.07

s = 0.42

p < 0.0001

s = 0.36

p = 0.0009

s = − 0.33

p = 0.003