Patient-Centred Outcomes and Resource Utilisation After Noncardiac Surgery-D(Eutschland) (PACORUS-D)

Objectives:

1a) to quantify patient-reported disability measured using the 12-item WHO Disability Assessment Schedule (WHODAS) after noncardiac surgery

1. b) to assess the impact of preoperative comorbidities (and frailty in patients aged ≥65 years) and procedural risk, and of postoperative complications on 365-day patient-reported disability after noncardiac surgery;
2. a) to quantify days alive and out of hospital (DAOH), a recently proposed, integrative, easily collected and statistically-efficient outcome after noncardiac surgery;

2b) to validate (construct [convergent] validity) DAOH at 30 and 365 days after noncardiac surgery, i.e. to assess impact of preoperative risk factors/procedural risk and postoperative complications on DAOH; 2c) to assess in a subcohort of patients ≥ 65 years, the construct (convergent) validity of DAOH in terms of frailty (Clinical Frailty Scale);

3a) to evaluate the criterion (concurrent) validity of DAOH for patient-reported disability at 30 days and 365 days; 3b) to evaluate the criterion (predictive) validity of DAOH at 30 days for patient-reported disability at 365 days.