Statistical analysis
generalised, depression
Descriptive statistics included frequencies and percentages for categorical data and means and standard deviations for continuous variables. Differences between experimental and control groups were evaluated using the Chi‐square or Fisher exact test for categorical variables and Student In all the questionnaires, the differences between baseline and 6 weeks and baseline and 3 months after intervention were calculated; the Wilcoxon signed‐rank test was used. Differences between the groups were evaluated by means of the Student After a univariable analysis to identify factors related to the change in global health status measured by the EORTC‐QLQ30 between the baseline score and the score at 6 weeks and 3 months, a multivariable generalised lineal model was performed. Group of patients, global health status at baseline measured by EORTC‐QLQ‐C30, social functioning at baseline measured by EORTC‐QLQ‐C30 and depression at baseline measured by HADS, were the factors included in the final multivariable generalised linear model. All those variables with a All effects were considered statistically significant at 