Study Design
The present cross-sectional study was conducted as the case-control
study at hospital between January 2016 and April 2020 in three centers,
the University of Health Sciences Okmeydani Training and Research
Hospital, Izmir Metropolitan Municipality Hospital, and Tire State
Hospital. The study was approved by the local ethics committee
(Bezmialem University Non-interventional Research Ethics Committee
Number 2011- KAEK-25 2015/24-11), and all participants of the study
filled in the informed consent form.