Table 1 Points of measurement and clinical outcome measures according to case report form

baseline (pre-intervention)

STAI-Trait¹, APAIS¹, SF-12¹, NC-items¹, AFKA_I-items¹, case report²

admission to ICU

TISS², APACHE II² (admission scores)

1st – 3rd postoperative day a. m.

CAM-ICU (including RASS)²

relocation from ICU

TISS², APACHE II² (transferring scores)

admission on standard ward

STAI-State¹, CINT-items¹

discharge from hospital

McPeek recovery score², postoperative complications², length of stay², mode of discharge²

3 months after discharge (postal)

STAI-State¹, SF-12¹, items from Lübecker FB-DK¹