Research Article

Reliability and Validity of the Greek QLQ-C30 and QLQ-MY20 for Measuring Quality of Life in Patients with Multiple Myeloma

Table 3

Spearman rank correlations between EORTC QLQ-C30 and SF-36 scales.

QLQ-C30 scalesSF-36 scales
PFRPBPGHVTSFREMH

Global health status0.58***0.270.52***0.35 *0.59***0.48***0.310.51***
Physical functioning0.80 ***0.51***0.51***0.41***0.71***0.54***0.260.49***
Role functioning0.54***0.51 ***0.47***0.240.57***0.47***0.50 ***0.36*
Emotional functioning0.39**0.260.44***0.35*0.54***0.48***0.41**0.71 ***
Social functioning0.55***0.310.49***0.320.48***0.59 ***0.270.39**
Fatigue−0.52***−0.42**−0.45***−0.44**−0.64 ***−0.47***−0.31−0.61***
Pain−0.50***−0.37*−0.73 ***−0.28−0.42**−0.29*−0.21−0.33

Notes: bold numbers indicate correlations hypothesized to be moderate or strong. Negative correlations are an artifact of the scoring procedures.
PF: physical functioning, RP: role physical, BP: bodily pain, GH: general health, VT: vitality, SF: social functioning, RE: role emotional, and MH: mental health.
𝑃 < 0 . 0 5 , 𝑃 < 0 . 0 1 , and 𝑃 < 0 . 0 0 1 , with Bonferroni adjustment for multiple testing.