Funding for this research was provided by:
Text and Data Mining valid from 2019-01-21
Received: 19 July 2018
Accepted: 14 January 2019
First Online: 21 January 2019
Ethics approval and consent to participate
: This study did not use involved human participants and but used data from anonymized electronic health records therefore informed consent was not applicable. The study protocol was approved by the independent scientific review committee for THIN (reference number 15THIN077), which ensured that the data used were to be analysed and interpreted appropriately. Data collection for THIN was approved by the NHS South East Multicentre Research Ethics Committee, and individual studies using THIN data do not require separate ethical approval if only anonymized THIN data is used. (ExternalRef removed).
: LCS and LAGR work for CEIFE, which has received research funding from Bayer AG. LAGR has recevied honoraria for serving on advisory committees for Bayer AG. JZ is a full-time employee of Bayer AG.
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