BaCoM	Bavarian ambulatory COVID-19 monitor
5C	psychological antecedents of vaccination readiness
CFS	clinical frailty scale
CI	confidence interval
OR	odds ratio
DP	depersonalization
DRKS	German Register of Clinical Studies
DSM-5	Diagnostic and Statistical Manual of Mental Disorders 5th edition
EE	emotional exhaustion
GAD-7	Generalized Anxiety Disorder Scale-7
GP	general practitioner
HCWs	healthcare workers
HLS-EU-Q16	Health Literacy Questionnaire
IQR	interquartile range
MBI-HSS	Maslach Burnout Inventory—Human Services Survey
OECD	Organization for Economic Cooperation and Development
PA	personal accomplishment
PCR	polymerase-chain reaction
PHQ-9	Patient Health Questionnaire-9
Q	quartile