Table 4

 Correlation matrix of associations between the four shoulder questionnaires with (a) each other; (b) other measures, including range of shoulder movement, generic, and VAS shoulder-specific measures

SDQ-NLSDQ-UKSPADISRQ
Values are Spearman’s correlation coefficients (rs).
*p<0.05; **p<0.01 according to the value of rs; †n = 30; ‡n may be <90 owing to some missing data.
SDQ-NL†–0.552**0.3300.432*
SDQ-UK†0.552**–0.573**0.716**
SPADI†0.3300.573**–0.829**
SRQ†0.432*0.716**0.829**–
Abduction°‡−0.390**−0.342**−0.251*−0.440**
Flexion°‡−0.399**−0.341**−0.231*−0.382**
Extension°‡−0.439**−0.225*−0.090−0.300**
Internal rotation°‡−0.317**−0.139−0.209*−0.264*
External rotation°‡−0.213*−0.020−0.232*−0.233*
EQ5 score‡−0.432**−0.680**−0.473**−0.498**
EQ TS‡−0.449**−0.448**−0.288**−0.427**
Pain VAS‡0.480**0.496**0.656**0.616**
Difficulty VAS‡0.465**0.413**0.619**0.598**