Table 4.

Effect size and standardized response mean between baseline and 12 ± 3 days after DC

AF6 Items		All	Responders		Non-responders
	ES	SRM	ES	SRM	ES	SRM
Breathing difficulties at rest	0.01	0.00	0.11	0.10	−0.13	−0.13
Breathing difficulties upon exertion	0.32	0.33	0.52	0.52	0.09	0.12
Limitations in day-to-day due to atrial fibrillation	0.28	0.25	0.71	0.70	−0.24	−0.21
Feeling of discomfort due to atrial fibrillation	0.29	0.28	0.59	0.64	−0.13	−0.10
Tiredness due to atrial fibrillation	0.53	0.53	0.86	0.83	0.19	0.22
Worry/anxiety due to atrial fibrillation	0.15	0.16	0.28	0.34	−0.04	0.03

Effect sizes were characterized as small (>0.2 but <0.5), moderate (0.5-0.8) or large (>0.8)