Median TTD according recalibration of response shift.

Then-test 1: retrospective assessment of baseline at the end of 1st hospitalization. Then-test 2: retrospective assessment of baseline at 3 months. Then-test 3: retrospective assessment of 3-month QoL. †then-test2. ¥then-test1 & then-test3 (i.e. significant recalibration was also observed at the retrospective assessment of 3-month QoL). ?then-test2 & then-test3 (i.e. significant recalibration was also observed at the retrospective assessment of 3-month QoL). ‡then-test3. NA: Not applicable (no significant recalibration). NR: Not reached. Inf: Infinite.