Blagoeva Atanasova, V
Arevalo-Serrano, J
Antolin Alvarado, E
García-Tizón Larroca, Santiago http://orcid.org/0000-0003-0520-1170
Article History
Received: 8 March 2018
Accepted: 4 October 2018
First Online: 11 October 2018
Ethics approval and consent to participate
: This is an ecological cross-sectional study and a secondary data analysis so consent to participate was not required. The Spanish National Institute of Statistics (INE) approved this data to be published (document available, register number: 22.570). All data obtained by the INE was de-identified so participants’privacy and confidenciality are protected.
: Not applicable.
: The authors declare that they have no competing interests.
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