Updates are available Correction dated 2021-12-13

Article History

Received: 9 April 2021

Accepted: 5 October 2021

First Online: 14 October 2021

Change Date: 13 December 2021

Change Type: Correction

Change Details: A Correction to this paper has been published:

Change Details: https://doi.org/10.1186/s12889-021-12291-6

Declarations

:

: This study gained approval from both the Sierra Leone Ethics and Scientific Review Committee and the ethical commission of the University of Erfurt, Germany. All study participants were informed about the project goals, topic, type of questions to be asked and their right to decline participation or to withdraw from the study at any time. Participants were asked if they had any questions prior to giving informed consent. In the case of illiterate participants, an impartial witness was present while the study purpose and procedures were explained. The participant thumbprinted the informed consent form in the presence of the witness who then also signed the consent form. Each participant was given a copy of the consent form. All our procedures have been performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments.

: Not applicable.

: The authors declare that they have no competing interests.