Increase of quality of life Steady state of quality of life Decrease of quality of life OCS + CCS group 22/23 (95.6 %) 1/23 (4.4 %) 0/23 (0 %) OCS group 9/9 (100%) 0/9 (0 %) 0/9 (0 %) CCS group 13/14 (92.8%) 1/14 (7.2%) 0/14 (0 %)

Table 5: Quality of life.