Table 6 Concentration index of the scores of EQ-5D and each of its dimension

Mobility

− 0.2758^***

(− 0.3448, − 0.2067)

− 0.3006^***

(− 0.3954, − 0.2058)

− 0.2474^***

(− 0.3137, − 0.1811)

− 0.1989^***

(− 0.2209, − 0.1769)

− 0.2301^***

(− 0.0336, − 0.1466)

− 0.2316^***

(− 0.2548, − 0.2084)

Selfcare

−0.3078^***

(− 0.4011, − 0.2144)

−0.2532^***

(− 0.3722, − 0.1342)

−0.2614^***

(− 0.3504, − 0.1725)

−0.2318^***

(− 0.2622, − 0.2013)

−0.1942^**

(− 0.3091, − 0.0079)

−0.2611^***

(− 0.2910, − 0.2312)

Activity

−0.2989^***

(− 0.3822, − 0.2155)

−0.0469

(− 0.1446, − 0.0507)

−0.2448^***

(− 0.3233, − 0.1663)

−0.1663^***

(− 0.1908, − 0.1418)

−0.2070^***

(− 0.3050, − 0.1091)

−0.2259^***

(− 0.2516, − 0.2001)

Pain

−0.1450^***

(− 0.1942, − 0.0956)

−0.0812^**

(− 0.1439, − 0.0185)

−0.1104^***

(− 0.1571, − 0.0638)

−0.0463^***

(− 0.0593, − 0.0334)

−0.1288^***

(− 0.1917, 0.0659)

−0.1559^***

(− 0.1714, − 0.1403)

Anxiety

−0.1137^**

(− 0.1868, − 0.0406)

−0.0112

(− 0.0891, 0.0668)

−0.0921^**

(− 0.1619, − 0.0224)

0.0482^***

(0.0290, 0.0675)

−0.1678^***

(− 0.2490, − 0.0865)

−0.1274^***

(− 0.1487, − 0.1060)

EQ5D

0.0087^***

(0.0065, 0.0110)

0.0083^***

(0.0050, 0.0118)

0.0074^***

(0.0053, 0.0096)

0.0117^***

(0.0108, 0.0127)

0.0084^***

(0.0076, 0.0092)

0.0107^***

(0.0099, 0.0116)