Table 2: Renal function characteristics of patients with serial renal function separated and compared by atrial fibrillation status

Variable	Control	AF	Ablation	Global p-value
Baseline creatinine (n=26,133)	1.05 ± 0.77*(median: 0.90) (n=19,154)	1.26 ± 0.86*† (median: 1.07) (n=4996)	1.06 ± 0.48†(median: 1.00) (n=1983)	< 0.0001
Δ 3 months (n=4150)	0.03 ± 0.65 (n=2571)	0.04 ± 0.56 (n=1250)	0.03 ± 0.50 (n=329)	0.91
Δ 6 months (n=3485)	0.02 ± 0.69 (n=2195)	0.06 ± 0.65 (n=958)	0.03 ± 0.44 (n=332)	0.34
Δ 9 months (n=2992)	-0.01 ± 0.79 (n=1883)	0.06 ± 0.74 (n=824)	0.02 ± 0.39 (n=285)	0.10
Δ 12 months (n=2941)	0.02 ± 0.91 (n=1916)	0.06 ± 0.78 (n=768)	0.03 ± 0.37 (n=257)	0.44
Δ 15 months (n=2680)	-0.02 ± 1.05* (n=1713)	0.13 ± 0.84* (n=740)	0.02 ± 0.41 (n=227)	0.002
Renal failure Diagnosis
3 months	3.0%* (576/19,357)	9.3%*† (469/5058)	2.9%† (57/1957)	< 0.0001
6 months	3.7%* (695/18,898)	11.9%*† (582/4875)	4.1%† (76/1865†)	< 0.0001
1 year	4.8%* (860/17,771)	15.3%*† (692/4535)	5.9%† (99/1687)	< 0.0001
2 years	6.2%*‡ (947/15,300)	19.5%*† (753/3856)	8.8%†‡ (117/1335)	< 0.0001
Long-term (n=26,592)	9.8%*‡ (1908/19,506)	26.0%*† (1327/5102)	11.7%†‡ (232/1984)	< 0.0001

*control vs. AF p< 0.05; †ablation vs. AF p< 0.05; ‡control vs. ablation p< 0.05