Updates are available Correction dated 2018-06-13

Article History

Received: 23 June 2017

Accepted: 24 April 2018

First Online: 18 May 2018

Change Date: 13 June 2018

Change Type: Correction

Change Details: Following publication of the original article [1], the authors reported a correction in the name of one of the authors.

Ethics approval and consent to participate

: The study was conducted in accordance with the Danish guidelines issued by the Danish Data Protection Agency (2015–41-4483). The study was evaluated and approved by Statistics Denmark (705871), who ensured access to and anonymization of individual level data. All individuals whose health data was collected for the original study had provided informed consent.

: The authors declare that they have no competing interests. The sponsor had no role in the study design, data collection and analysis. There is no relationship between authors and sponsors, which could potentially bias the results.

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