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Table 5 Information gained in the analysis process for costs and QALY in both arms

From: On the censored cost-effectiveness analysis using copula information

Modelisation process

Control arm

Acupuncture arm

Kendall’s tau \((\hat {\tau }_{K})\)

−0.1065

−0.1232

QALY distribution

\(T_{adj} \sim \mathcal {N}(\hat {\mu }_{T_{adj}}=0.7083, \hat {\sigma }_{T_{adj}}=0.1118)\)

\(T_{adj} \sim \mathcal {N}(\hat {\mu }_{T_{adj}}=0.7268, \hat {\sigma }_{T_{adj}}=0.1190)\)

Costs statistics

\(\hat {\mu }_{C}=217.20\)

\(\hat {\mu }_{C}=403.40 \)

 

\(\hat {\sigma }_{C}=486.00\)

\(\hat {\sigma }_{C}=356.59\)

Costs distribution

\(C \sim logN(\hat {\nu }_{C}=4.4844, \hat {\tau }_{C}=1.3390)\)

\(C \sim logN(\hat {\nu }_{C}=5.7111, \hat {\tau }_{C}=0.7600)\)

Selected copula family

Gaussian

Student (t)

Copula parameter \((\hat {\theta })\)

−0.1664

−0.1923