Category	Parameter	I [very high risk]	II [high risk]	III [low/moderate risk]
Personal characteristics	Life stage	Childhood/adolescence/pregnancy/lactation/elderly	Late mid age	Healthy adulthood
	Life style	Intense physical labour; potential public health impact of hypoglycaemia, e.g., in commercial drivers	Variable duties, e.g., shiftworkers	Routine life style
	Overall health	Infirm; cognitive dysfunction; severe acute illness	Risk of dehydration; on concomitant steroid therapy	Stable
Diabetes related characteristics	Type of diabetes	Brittle diabetes; T1DM, poorly controlled	T2DM, poorly controlled T1DM, well controlled	T2DM, well controlled
	Acute complications	History of severe hypoglycaemia/DKA/HHNKC within 3 months prior to Ramadan; history of recurrent hypoglycaemia	None	None
	Chronic complications	History of hypoglycaemia unawareness; CKD stage 4/5; advanced macrovascular	CKD stage 3, stable macrovascular complications	No complication
Therapeutic characteristics	Noninsulin therapy	Conventional sulfonylurea	TID regimes	All other therapy
	Insulin therapy	Basal bolus regimes	TID regimes: Basal-plus; premixed TDS; rapid-rapid-premix; premix-rapid-premix	Once or BID regimes: Basal; premixed analogues
Medico-religious advice	Religious suggestion	Listen to medical advice. Do not fast in health is endangered. Be prepared to break the fast if ill health occurs
	Medical management	Structured education; SMBG; Dose titration. Watch for complications, and manage appropriately

T1DM: Type 1 diabetes, T2DM: Type 2 diabetes, DKA: diabetes ketoacidosis, HHNKC: Hyperosmolar hyperglycaemic nonketotic coma, CKD: Chronic kidney disease, TID: Thrice daily