Table 1.

Saudi Heart Association classes of recommendations.

Color	Class	Definition
	Recommended	The usefulness and efficacy of a particular treatment/procedure/action is supported by available evidence.
	Should be considered	The usefulness and efficacy of a particular treatment/procedure/action is established by favorable expert opinion on conflicting evidence.
	May be considered	The usefulness and efficacy of a particular treatment/procedure/action is not well established by evidence and expert opinion.
	Not recommended	A particular treatment/procedure/action is not useful nor effective and is potentially harmful based on available evidence and/or general agreement.