Score	Impact on Quality of Life
0	Asymptomatic Asymptomatic with respect to AF
1	Minimal Symptoms attributable to AF have minimal effect on patient’s general QoL. Minimal and/or infrequent symptoms, or; Single episode of AF without syncope or heart failure
2	Minor Symptoms attributable to AF have a minor effect on patient’s general QoL. Mild awareness of symptoms in patients with persistent/permanent AF, or; Rare episodes (eg, less than a few per year) in patients with paroxysmal or intermittent AF
3	Moderate Symptoms attributable to AF have a moderate effect on patient’s general QoL. Moderate awareness of symptoms on most days in patients with persistent/permanent AF, or; More common episodes (eg, more than every few months) or more severe symptoms, or both, in patients with paroxysmal or intermittent AF
4	Severe Symptoms attributable to AF have a severe effect on patient’s general QoL. Very unpleasant symptoms in patients with persistent/paroxysmal AF and/or; Frequent and highly symptomatic episodes in patients with paroxysmal or intermittent AF and/or; Syncope thought to be due to AF and/or; Congestive heart failure secondary to AF

*The intent of the CCS SAF scale is to capture AF-related symptoms and QOL, However the scale evaluates not only symptoms that occur duing episodes of AF but also the consequences of ongoing treatment for AF (ie medication-related side effects.)