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Table 6 Regression coefficients for predicting EQ-5D-5L health utility scores from Seattle Angina Questionnaire using indirect approach, N = 380

From: Mapping the Seattle Angina Questionnaire to EQ-5D-5L in patients with coronary heart disease

Variable

MO

SC

UA

PD

AD

SAQ PL

-12.6193***

-11.5837***

-10.2628***

-4.4646***

-0.8718

 

[1.3646]

[2.0187]

[1.1946]

[1.0459]

[0.9153]

SAQ AS

-1.2609

-0.4644

-1.0368

-1.3777*

-0.7419

 

[0.7910]

[1.7335]

[0.6768]

[0.5914]

[0.5756]

SAQ AF

-1.4301

-2.6338

-1.4646*

-1.6318*

-1.5527*

 

[0.7593]

[1.4914]

[0.6879]

[0.6454]

[0.6109]

SAQ TS

-4.4563*

-2.3537

-3.8393*

-3.6361*

2.6952

 

[1.7579]

[3.3780]

[1.6251]

[1.5482]

[1.4271]

SAQ DP

3.1240*

5.0511

0.2211

-5.2587***

-10.6382***

 

[1.5290]

[2.7691]

[1.4063]

[1.3923]

[1.4331]

Cut1

-10.2116***

-4.5555*

-10.3147***

-10.3706***

-5.3762***

 

[1.2489]

[1.8417]

[1.1832]

[1.1160]

[0.9003]

Cut2

-6.5813***

-1.9126

-6.5026***

-6.4055***

-3.4332***

 

[1.1164]

[1.8522]

[1.0379]

[0.9733]

[0.8653]

Cut3

-3.3392**

-1.2472

-3.4244**

-2.6310*

1.7840

 

[1.2704]

[1.9092]

[1.1673]

[1.1236]

[1.2772]

  1. Notes: *, P < 0.05; **, P < 0.01; ***, P < 0.001;
  2. MO, mobility; SC, self-care; US, usual activities; PD, pain/discomfort, AD, anxiety/depression
  3. PL, physical limitation; AS, angina stability; AF, angina frequency; TS, treatment satisfaction; DP, disease perception. The coefficients were captured from ordered logit regression models in which Seattle Angina Questionnaire score multiplied by 100