Table 2 Internal consistency of SarQoL and subdomains (by Cronbach’s alpha)

SarQoL total

0.94 (0.93, 0.96)

0.71 [0.63,0.78)

0.73 [0.66, 0.80)

Physical and mental health

0.76 (0.70, 0.82)

0.83 [0.79, 0.87)

0.83 [0.78, 0.87)

Locomotion

0.89 (0.86, 0.92)

0.30 [0.10, 0.47)

0.28 [0.64, 0.46)

Body composition

0.17 (−0.07, 0.37)

0.09 [− 0.21, 0.32)

0.09 [− 0.22, 0.33)

Functionality

0.87 (0.83, 0.90)

0.86 [0.83, 0.90)

0.86 [0.82, 0.89)

Activities of daily living

0.88 (0.85, 0.91)

0.88 [0.85, 0.91)

0.88 [085, 0.91)

Leisure activities

0.39 (0.15, 0.56)

0.45 [0.22, 0.61)

0.42 [0.17, 0.60)

Fears

n/a^a

n/a^a

n/a^a