The validation of the standard Chinese version of the European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire 30 (EORTC QLQ-C30) in pre-operative patients with brain tumor in China

Table 2 Correlations among the QLQ-C30 scales before and after operation

# Before operation under the diagonal; after operation above the diagonal. Values = Pearson's r. Negative correlations are an artifact of the scoring procedures. For the functional scales (PF, RF, CF, EF, SF, and QL), a higher score represents a higher level of functioning. For the symptom scales (FA, NV, and PA ), a higher score represents a higher level of symptoms. All correlation coefficients are statistically significant.
**. Correlation is significant at the 0.01 level (2-tailed).
*. Correlation is significant at the 0.05 level (2-tailed).
Abbreviations: CF Cognitive functioning; EF Emotional functioning; FA Fatigue; NV Nausea and vomiting; PA Pain; PF physical function; QL Global health status; RF role function; SF Social functioning

ISSN: 1471-2288