Table 1 Core set of instruments used in the quantitative part of the study

Restriction of Participation

IMET [17]

●

●

●

Quality of Life

VR12 [20]

●

●

●

Depression, Anxiety and Stress Scale

DASS [22]

●

●

●

●

Stress-Related Psychomental Limitations and Disorders

GAD-7 [23]; PHQ-9 [24]

●

●

●

●

Corona-associated Life Events

Single Items

●

●

●

●

Effects of Chronic Obstructive Pulmonary Disease

CAT [26]

●

●

●

●

Fatigue

EORTC-FA 12 [32]

●

●

●

●

General State of Health

Single Items

●

●

●

●

Performance in Various Areas of Life

QGmR [30]

●

●

●

Occupational Changes

Single Items from

QGmR [30]

●

●

Occupational Situation

Single Items

●

●

●

Ability to Work

Work Ability Score,

WAS [28]

●

●

●

Subjective Prognosis of Employment

SPE-Scale [29]

●

●

●

Moderating Variables

Comorbidity

Single Items [35]

●

●

●

Risk Factors

Single Items

●

●

●

●

Sociodemographic Data

Single Items [36]

●

●

●