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Table 3 Equations to predict EQ-5D and OAB-5D utilities from symptom frequency level

From: Estimating EQ-5D and OAB-5D health state utilities for patients with overactive bladder

Effect EQ-5D utility OAB-5D utility
β estimate β SE a P value b β estimate β SE a P value b
Intercept 0.940 0.0230 <.0001 0.766 0.0085 <.0001
Age -0.001 0.0002 0.0006 0.0003 0.0001 <.0001
Gender: female vs. male -0.021 0.0063 0.0006 0.005 0.0024 0.0551
BMI -0.003 0.0004 <.0001 -0.001 0.0002 0.0003
Previously treated with antimuscarinics -0.019 0.0055 0.0006 -0.017 0.0021 <.0001
Micturitions level: 1 vs. 5 0.056 0.0057 <.0001 0.088 0.0022 <.0001
Micturitions level: 2 vs. 5 0.040 0.0052 <.0001 0.055 0.0021 <.0001
Micturitions level: 3 vs. 5 0.029 0.0051 <.0001 0.035 0.0020 <.0001
Micturitions level: 4 vs. 5 0.019 0.0051 0.0002 0.019 0.0020 <.0001
Incontinence episodes level: 1 vs. 5 0.052 0.0052 <.0001 0.076 0.0020 <.0001
Incontinence episodes level: 2 vs. 5 0.037 0.0052 <.0001 0.048 0.0020 <.0001
Incontinence episodes level: 3 vs. 5 0.022 0.0054 <.0001 0.025 0.0021 <.0001
Incontinence episodes level: 4 vs. 5 0.011 0.0058 0.0481 0.012 0.0023 <.0001
Study: SCORPIO vs. CAPRICORN -0.019 0.0081 0.0174 -0.012 0.0030 <.0001
Study: ARIES vs. CAPRICORN -0.008 0.0083 0.3409 0.004 0.0031 0.1984
  1. aSE: Standard error.
  2. b t- test to test the null hypothesis that the associated β estimate equals zero.