Results from the unanchored models
Parameters | Model; coefficient (SE) | |||||
---|---|---|---|---|---|---|
Model 1: All levels, all respondents | Model 2: Combined levels, all respondents | Model 3: Combined levels, excluding nonswitchers | Model 4: Combined levels, excluding inconsistent respondents | Model 5: Combined levels, excluding completions < 2 min | Model 6: Weighted model 2 | |
PF1×LY | – | – | – | – | – | – |
PF2×LY | −0.028 (0.005)* | −0.025 (0.005)* | −0.026 (0.005)* | −0.035 (0.006)* | −0.028 (0.005)* | −0.023 (0.007)* |
PF3×LY | −0.080 (0.005)* | −0.080 (0.005)* | −0.080 (0.005)* | −0.093 (0.006)* | −0.086 (0.005)* | −0.073 (0.007)* |
RP1×LY | – | – | – | – | – | – |
RP2×LY | 0.008 (0.005) | −0.011 (0.004)* | −0.012 (0.004)* | −0.014 (0.005)* | −0.011 (0.005)* | −0.004 (0.006) |
RP3×LY | 0.009 (0.006) | † | † | † | † | † |
RP4×LY | −0.035 (0.005)* | † | † | † | † | † |
RP5×LY | −0.047 (0.006)* | −0.053 (0.005)* | −0.054 (0.005)* | −0.059 (0.006)* | −0.057 (0.006)* | −0.050 (0.008)* |
RE1×LY | – | – | – | – | – | – |
RE2×LY | −0.016 (0.006)* | −0.006 (0.005) | −0.006 (0.005) | −0.008 (0.005) | −0.006 (0.005) | −0.009 (0.007) |
RE3×LY | 0.013 (0.006) | † | † | † | † | † |
RE4×LY | −0.013 (0.006) | † | † | † | † | † |
RE5×LY | −0.048 (0.005)* | −0.052 (0.005)* | −0.051 (0.005)* | −0.052 (0.006)* | −0.058 (0.006)* | −0.051 (0.008)* |
BP1×LY | – | – | – | – | – | – |
BP2×LY | −0.028 (0.006)* | −0.026 (0.005)* | −0.027 (0.005)* | −0.034 (0.006)* | −0.030 (0.005)* | −0.018 (0.007)* |
BP3×LY | −0.027 (0.006) | † | † | † | † | † |
BP4×LY | −0.096 (0.005)* | −0.092 (0.005)* | −0.091 (0.005)* | −0.106 (0.006)* | −0.101 (0.005)* | −0.085 (0.007)* |
BP5×LY | −0.127 (0.006)* | −0.129 (0.006)* | −0.128 (0.006)* | −0.149 (0.006)* | −0.138 (0.006)* | −0.123 (0.008)* |
MA1×LY | – | – | – | – | – | – |
MA2×LY | −0.002 (0.005) | −0.019 (0.005)* | −0.019 (0.005)* | −0.016 (0.006)* | −0.019 (0.005)* | −0.018 (0.007)* |
MA3×LY | −0.020 (0.006)* | † | † | † | † | † |
MA4×LY | −0.058 (0.005)* | −0.058 (0.005)* | −0.059 (0.005)* | −0.063 (0.005)* | −0.058 (0.005)* | −0.059 (0.007)* |
MA5×LY | −0.112 (0.006)* | −0.112 (0.005)* | −0.114 (0.005)* | −0.125 (0.006)* | −0.120 (0.005)* | −0.107 (0.007)* |
MD1×LY | – | – | – | – | – | – |
MD2×LY | −0.028 (0.006)* | −0.024 (0.005)* | −0.024 (0.005)* | −0.030 (0.006)* | −0.028 (0.006)* | −0.027 (0.008)* |
MD3×LY | −0.015 (0.006)* | † | † | † | † | † |
MD4×LY | −0.112 (0.006)* | −0.113 (0.005)* | −0.112 (0.005)* | −0.128 (0.006)* | −0.125 (0.006)* | −0.113 (0.008)* |
MD5×LY | −0.145 (0.006)* | −0.148 (0.006)* | −0.150 (0.006)* | −0.168 (0.007)* | −0.160 (0.006)* | −0.148 (0.009)* |
VT1×LY | – | – | – | – | – | – |
VT2×LY | −0.020 (0.006)* | −0.019 (0.006)* | −0.018 (0.006)* | −0.017 (0.007)* | −0.021 (0.006)* | −0.022 (0.008)* |
VT3×LY | −0.044 (0.006)* | −0.034 (0.005)* | −0.035 (0.005)* | −0.037 (0.006)* | −0.036 (0.005)* | −0.037 (0.007)* |
VT4×LY | −0.023 (0.006)* | † | † | † | † | † |
VT5×LY | −0.082 (0.006)* | −0.082 (0.006)* | −0.083 (0.006)* | −0.091 (0.006)* | −0.088 (0.006)* | −0.081 (0.008)* |
SF1×LY | – | – | – | – | – | – |
SF2×LY | 0.005 (0.005) | −0.021 (0.004)* | −0.021 (0.004)* | −0.021 (0.005)* | −0.021 (0.005)* | −0.024 (0.006)* |
SF3×LY | −0.017 (0.005)* | † | † | † | † | † |
SF4×LY | −0.068 (0.005)* | −0.072 (0.005)* | −0.073 (0.005)* | −0.082 (0.005)* | −0.079 (0.005)* | −0.065 (0.007)* |
SF5×LY | −0.083 (0.006)* | −0.094 (0.005)* | −0.093 (0.005)* | −0.104 (0.006)* | −0.100 (0.005)* | −0.086 (0.007)* |
LY | 0.464 (0.012)* | 0.473 (0.011)* | 0.472 (0.011)* | 0.537 (0.012)* | 0.507 (0.011)* | 0.452 (0.016)* |
R2 | 0.167 | 0.164 | 0.164 | 0.196 | 0.179 | 0.154 |
No. of choice set responses | 33 800 | 33 800 | 33 430 | 26 950 | 30 650 | 33 800 |
Note: BP = bodily pain, LY = life years, MA = mental health — anxiety, MD = mental health — depression, PF = physical functioning, RE = role emotional, RP = role physical, SE = standard error, SF = social functioning, VT = vitality.
↵* Coefficient for the VR-12-related attribute is statistically different from the coefficient of the attribute level above, at the 5% level of significance. For the life-years attribute, the coefficient is statistically different from 0 at the 5% level of significance.
↵† Attribute levels are combined to overcome the directional inconsistencies observed in model 1. For example, in model 3, SF2 and SF3 have the same disutility (−0.021).