Funding for this research was provided by:
Magyar Tudományos Akadémia (MTA 11003, 2006TKI227)
European Union and the European Regional Development Fund (GINOP-2.3.2-15-2016-00005)
Received: 19 April 2019
Accepted: 18 June 2020
First Online: 24 June 2020
Ethics approval and consent to participate
: Not applicable.The present paper has been produced using the European Health Interview Survey data files of the Hungarian Central Statistical Office. The anonymised databases without personal identifiers were provided for our research group by contracts. According to the Hungarian legislation (Act CLV of 2016 on Official Statistics entered into force on 1 January 2017 [CitationRef removed] and by Government Decree 184/2017 [CitationRef removed] issued for the implementation of this law), there was no need for ethical approval to implement the secondary analysis of the database.
: Not applicable.
: The authors declare that they have no competing interests.