Funding for this research was provided by:
National University Health System and National University of Singapore (CF/SCL/16/025)
Text and Data Mining valid from 2019-07-02
Received: 18 October 2018
Accepted: 12 June 2019
First Online: 2 July 2019
Ethics approval and consent to participate
: The work is approved by the Domain Specific Review Board (DSRB), National Healthcare Group, Singapore (2016/01011) and the data approved as a DSRB Standing Database: NUS-SSHSPH/2015–00032. The need for consent for use of patient data was waived by the DSRB, our official statement is here:“Patients will not be contacted, as the data has already been collected and is housed within a standing database. The information collected is not sensitive in nature since it is anonymized, and the data collected has been derived from standard clinically indicated procedures. The information collected is part of patients’ clinically indicated procedures or as part of the normal running of business operations. None of the information collected would affect the clinical decisions about the individual’s care, and patients are not being deprived of clinical care to which they would normally be entitled to. Identifying and contacting thousands of patients, although not impossible, would not be feasible for a collection of information that would not change the care they would already have received.”
: Not applicable.
: The authors declare that they have no competing interests.