Table 3.

Regression coefficients (standard error in brackets), including sample size (n), AIC and BIC

Perspective	Proxy 1	Proxy 2 (substitute)	Both	Both
Model	1	2	3	4
				Main effects	Interaction
MO2	0.033 (0.011)**	0.043 (0.013)**	0.038 (0.009)***	0.030 (0.012)***	0.006 (0.018)
MO3	0.090 (0.024)***	0.097 (0.021)***	0.094 (0.016)***	0.089 (0.023)***	0.005 (0.032)
SC2	0.025 (0.013)+	0.033 (0.015)*	0.030 (0.011)**	0.025 (0.014)**	0.008 (0.020)
SC3	0.071 (0.015) ***	0.084 (0.016)***	0.078 (0.011)***	0.072 (0.016)***	0.007 (0.022)
UA2	0.040 (0.011) ***	0.033 (0.012)***	0.036 (0.008)***	0.040 (0.011)***	− 0.017 (0.017)
UA3	0.110 (0.024) ***	0.152 (0.021)***	0.132 (0.016)***	0.113 (0.023)***	0.031 (0.032)
PD2	0.052 (0.012) ***	0.056 (0.012)***	0.054 (0.009)***	0.051 (0.012)***	− 0.002 (0.018)
PD3	0.463 (0.025) ***	0.380 (0.023)***	0.420 (0.017)***	0.462 (0.024)***	− 0.086 (0.033)*
AD2	0.066 (0.013) ***	0.056 (0.011)***	0.062 (0.009)***	0.070 (0.012)***	− 0.023 (0.018)
AD3	0.506 (0.025) ***	0.396 (0.022)***	0.450 (0.017)***	0.510 (0.024)***	− 0.120 (0.033)***
Proxy 2 (substitute) perspective			−0.000 (0.007)	0.020 (0.013)
n	2175	2237	4412	4412
AIC	2032.7	1913.5	3994.5	3984.4
BIC	2152.1	2033.5	4135.2	4189.0

The first column for Model 4 shows the main effects, the second column for Model 4 shows the interaction terms, e.g. MO2*Perspective, which takes a value of 1 when a state has a mobility level 2 and was valued

AIC Akaike’s information criterion, BIC Bayesian information criterion, MO1-AD3 dummies of the form Dj, with j indicating level, for mobility, usual activities, looking after myself, pain or discomfort and feeling sad, and worried or unhappy dimensions of EQ-5D-Y-3L, n number of observations

+, *, **, ***Indicate significance at p < 0.10, p < 0.05, p < 0.01 and p < 0.001, respectively