Table 2.
Baseline EQ-5D-5L index scores by demographic and clinical characteristics
| Characteristic | Mean (standard deviation) | Difference (90 % confidence interval) | |
|---|---|---|---|
| Valuation-derived index score | Mapping-derived index score | ||
| All patients | 0.811 (0.186) | 0.796 (0.250) | 0.015 (0.006 to 0.024)a |
| Language version | |||
| English | 0.815 (0.182) | 0.808 (0.226) | 0.007 (−0.001 to 0.015)a |
| Chinese | 0.804 (0.192) | 0.774 (0.285) | 0.029 (0.009 to 0.050)a |
| Race | |||
| Chinese | 0.816 (0.189) | 0.799 (0.258) | 0.017 (0.007 to 0.028)a |
| Malay/Indian/others | 0.788 (0.169) | 0.782 (0.206) | 0.006 (−0.010 to 0.022)a |
| Marital status | |||
| Married | 0.826 (0.174) | 0.816 (0.291) | 0.010 (0.000 to 0.020)a |
| Single/divorced/widowed | 0.774 (0.207) | 0.745 (0.304) | 0.028 (0.009 to 0.048)a |
| Education level | |||
| Primary or below | 0.793 (0.219) | 0.762 (0.304) | 0.031 (0.008 to 0.054) |
| Secondary | 0.818 (0.178) | 0.799 (0.249) | 0.019 (0.004 to 0.033)a |
| Post-secondary | 0.817 (0.168) | 0.820 (0.192) | −0.003 (−0.011 to 0.005)a |
| Oncologist-assessed performance status | |||
| 0 | 0.889 (0.120) | 0.891 (0.140) | −0.002 (−0.008 to 0.005)a |
| 1 | 0.774 (0.160) | 0.766 (0.207) | 0.008 (−0.005 to 0.022)a |
| 2 | 0.612 (0.224) | 0.514 (0.360) | 0.098 (0.038 to 0.158) |
| 3 or above | 0.575 (0.349) | 0.457 (0.507) | 0.118 (0.025 to 0.210) |
| Patients’ self-assessed performance status | |||
| 0 | 0.917 (0.104) | 0.917 (0.127) | −0.000 (−0.008 to 0.007)a |
| 1 | 0.796 (0.132) | 0.796 (0.160) | 0.000 (−0.009 to 0.009)a |
| 2 | 0.739 (0.159) | 0.728 (0.182) | 0.011 (−0.008 to 0.030)a |
| 3 or above | 0.421 (0.271) | 0.214 (0.419) | 0.207 (0.128 to 0.285)b |
| Patient type | |||
| Inpatient | 0.704 (0.228) | 0.650 (0.338) | 0.054 (0.029 to 0.078) |
| Outpatient | 0.864 (0.133) | 0.868 (0.146) | −0.004 (−0.008 to 0.001)a |
| Current evidence of disease | |||
| Absent | 0.875 (0.132) | 0.878 (0.151) | −0.003 (−0.010 to 0.004)a |
| Present | 0.753 (0.208) | 0.721 (0.294) | 0.032 (0.016 to 0.047)a |
| On chemotherapy/radiotherapy | |||
| Yes | 0.755 (0.181) | 0.730 (0.272) | 0.025 (0.007 to 0.043)a |
| No | 0.854 (0.179) | 0.845 (0.219) | 0.008 (0.000 to 0.016)a |
| Mode of administration | |||
| Self-administered | 0.820 (0.175) | 0.807 (0.236) | 0.013 (0.004 to 0.022)a |
| Interviewer-administered | 0.722 (0.257) | 0.684 (0.342) | 0.038 (0.003 to 0.073) |
aEquivalence was confirmed
bNon-equivalence was confirmed