Study ID	Date trial author contacted	Date trial author replied	Date trial author was asked for additional information (short summary)	Date trial author provided data (short summary)
Hweidi 2021	1 August 2022	No answer	Additional information on the insulin protocol regimen of the control group
Imran‐ul‐hassan 2021	1 August 2022	No answer	Information about study design
* Gupta 2020	1 September 2021	No answer	People with diabetes, separated data
* Kumar 2020	28 October 2020	No answer	People with diabetes, separated data
*Mohod 2019	28 October 2020	No answer	People with diabetes, separated data
*Santana‐Santos 2019	28 October 2020	No answer	People with diabetes, separated data
*Abdelmalak 2019	28 October 2020	No answer	People with diabetes, separated data
Duncan 2018	27 May 2019	28 May 2019	People with diabetes, separated data	13 June 2019
*Kurnaz 2017	20 May 2019	No answer	People with diabetes, separated data
Wallia 2017	27 May 2019	29 May 2019	People with diabetes, separated data	2 June 2019
Wahby 2016	Not contacted
Parekh 2016	Not contacted
Umpierrez 2015	27 May 2019	29 May 2019	People with diabetes, separated data	24 July 2019
Yuan 2015	Not contacted
*Kalfon 2014	12 March 2019	12 March 2019	People with diabetes, separated data.	No data provided by author
*Okabayashi 2014	27 May 2019	No answer	People with diabetes, separated data
*Rujirojindakul 2014	26 May 2019	No answer	People with diabetes, separated data
*Pezzella 2014	27 May 2019	No answer	People with diabetes, separated data
Abdelmalak 2013	23 May 2019	23 May 2019	People with diabetes, separated data	27 June 2019
*Giakoumidakis 2013	27 May 2019	No answer	People with diabetes, separated data
Hermayer 2012	Not contacted
Desai 2012	3 June 2019	No answer	People with diabetes, separated data	Author provided separated data in former review
Lazar 2011	3 June 2019	5 June 2019	Data on outcomes not reported in the study	Author did not analyse other outcomes
Cao 2010	Not contacted
Glucontrol 2009	3 June 2019	No answer	People with diabetes, separated data	Author provided separated data in former review
NICE SUGAR 2009	3 June 2019	No answer	People with diabetes, separated data	Author provided separated data in former review
Subramaniam 2009	3 June 2019	No answer	People with diabetes, separated data	Author provided separated data in former review
Chan 2009	3 June 2019	No answer	People with diabetes, separated data	Author provided separated data in former review
De La Rosa 2008	3 June 2019	No answer	People with diabetes, separated data	Author provided separated data in former review
Gandhi 2007	3 June 2019	No answer
Li 2006	3 June 2019	No answer
Lazar 2004	3 June 2019	5 June 2019	Data on outcomes not reported in the study	Author did not analyse other outcomes
Rassias 1999	3 June 2019	No answer
* Studies excluded with reason: no outcome data available for subpopulation of patients with diabetes after contacting study authors.