Table 2. Summary of main study characteristics.

	Author and publication year	Study design	Country	Setting	Participants (eligibility criteria)	Sample size (n)	Study period	Community care intervention
1	David et al. 2022 [37]	Mixed method	South Africa	Urban	• Existing diagnosis of T2DM  • Prescribed metformin and/or glimepiride	• 331 in community model  • 130 in facility model	16 months	Home delivery of medication:  • CHW delivery of pre-packaged medication  • Assessment of symptoms of COVID-19  • Assessment of other complaints  • Needs-based referral to primary health facility.
2	Pastakia et al. 2017 [38]	Prospective cohort with historic control group	Kenya	Rural	For screening: all consenting individuals. For cohort: all diagnosed with T2DM	876 screened, 10 with T2DM	6 to 12 months	BIGPIC:  • Community screening,  • Linkage to peer/microfinance group.  • monthly microfinance meetings  • T2DM treatment in community
3	Takenga et al. 2014 [39]	Randomized pilot trial	Democratic Republic of Congo	Urban	T2DM patients between the age of 35 to 75	40 (20 in intervention arm)	Not reported	Mobil Diab System:  • eHealth solution available as mobile app or web-based.  • Enables self-monitoring of blood glucose by patients.  • Remote follow-up by care providers.  • Telephone support
4	Ndou et al. 2013 [21]	Retrospective cohort study with matched control group	South Africa	Urban	Stable patients with diabetes.	56 community model (22 with T2DM); 168 facility care (42 with T2DM)	Not reported	Kgatelopele programme:  • Monthly packaging of medications by pharmacist.  •Monthly home visits, where CHW brings the medication to the patient’s home.  •6-monthly clinic visits by patients to be examined by physician.

BIGPIC = Impact of Bridging Income Generation with Group Integrated Care; T2DM = type 2 diabetes mellitus; CHW = community health workers