Table 4 Open in new tab Predictors of...

Univariate	Multivariate
Age, year	1.003 (0.959–1.049)	0.899
Female sex	1.449 (0.510–4.119)	0.486
Body mass index, kg/m²	0.976 (0.827–1.151)	0.772
Heart failure	1.160 (0.333–4.038)	0.816
Hypertension	1.351 (0.500–3.665)	0.55
Diabetes mellitus	1.461 (0.515–4.148)	0.476
Cerebrovascular accident	3.178 (1.117–9.042)	0.03	Cerebrovascular accident	1.008 (0.265–3.839)	0.99
Vascular disease	0.800 (0.183–3.505)	0.767
CHA₂DS₂-VAS_C score	1.278 (0.961–1.699)	0.092
AF duration, mon	0.972 (0.939–1.005)	0.1	AF duration, mon	0.981 (0.935–1.029)	0.429
LA diameter, mm	1.287 (1.163–1.423)	<0.001	LA diameter, mm	1.263 (1.127–1.416)	<0.001
LV ejection fraction, %	0.993 (0.902–1.092)	0.879
Procedure time, min	1.017 (0.983–1.052)	0.329
LA indwelling time, min	1.031 (0.989–1.075)	0.145
Ablation time, min	1.105 (1.014–1.204)	0.022	Ablation time, min	1.013 (0.930–1.104)	0.761
Fluoroscopic time, min	1.006 (0.942–1.074)	0.869
Radiation exposure, mGy	1.001 (0.981–1.021)	0.937
Mean LA pressure	0.950 (0.821–1.099)	0.491
Zero-X (vs. conventional group)	1.103 (0.425–2.861)	0.841

Univariate

Multivariate

Risk factor

HR (95% CI)

P-value

Risk factor

HR (95% CI)

P-value

Age, year

1.003 (0.959–1.049)

0.899

Female sex

1.449 (0.510–4.119)

0.486

Body mass index, kg/m²

0.976 (0.827–1.151)

0.772

Heart failure

1.160 (0.333–4.038)

0.816

Hypertension

1.351 (0.500–3.665)

0.55

Diabetes mellitus

1.461 (0.515–4.148)

0.476

Cerebrovascular accident

3.178 (1.117–9.042)

0.03

Cerebrovascular accident

1.008 (0.265–3.839)

0.99

Vascular disease

0.800 (0.183–3.505)

0.767

CHA₂DS₂-VAS_C score

1.278 (0.961–1.699)

0.092

AF duration, mon

0.972 (0.939–1.005)

0.1

AF duration, mon

0.981 (0.935–1.029)

0.429

LA diameter, mm

1.287 (1.163–1.423)

<0.001

LA diameter, mm

1.263 (1.127–1.416)

<0.001

LV ejection fraction, %

0.993 (0.902–1.092)

0.879

Procedure time, min

1.017 (0.983–1.052)

0.329

LA indwelling time, min

1.031 (0.989–1.075)

0.145

Ablation time, min

1.105 (1.014–1.204)

0.022

Ablation time, min

1.013 (0.930–1.104)

0.761

Fluoroscopic time, min

1.006 (0.942–1.074)

0.869

Radiation exposure, mGy

1.001 (0.981–1.021)

0.937

Mean LA pressure

0.950 (0.821–1.099)

0.491

Zero-X (vs. conventional group)

1.103 (0.425–2.861)

0.841

Univariate	Multivariate
Age, year	1.003 (0.959–1.049)	0.899
Female sex	1.449 (0.510–4.119)	0.486
Body mass index, kg/m²	0.976 (0.827–1.151)	0.772
Heart failure	1.160 (0.333–4.038)	0.816
Hypertension	1.351 (0.500–3.665)	0.55
Diabetes mellitus	1.461 (0.515–4.148)	0.476
Cerebrovascular accident	3.178 (1.117–9.042)	0.03	Cerebrovascular accident	1.008 (0.265–3.839)	0.99
Vascular disease	0.800 (0.183–3.505)	0.767
CHA₂DS₂-VAS_C score	1.278 (0.961–1.699)	0.092
AF duration, mon	0.972 (0.939–1.005)	0.1	AF duration, mon	0.981 (0.935–1.029)	0.429
LA diameter, mm	1.287 (1.163–1.423)	<0.001	LA diameter, mm	1.263 (1.127–1.416)	<0.001
LV ejection fraction, %	0.993 (0.902–1.092)	0.879
Procedure time, min	1.017 (0.983–1.052)	0.329
LA indwelling time, min	1.031 (0.989–1.075)	0.145
Ablation time, min	1.105 (1.014–1.204)	0.022	Ablation time, min	1.013 (0.930–1.104)	0.761
Fluoroscopic time, min	1.006 (0.942–1.074)	0.869
Radiation exposure, mGy	1.001 (0.981–1.021)	0.937
Mean LA pressure	0.950 (0.821–1.099)	0.491
Zero-X (vs. conventional group)	1.103 (0.425–2.861)	0.841

Table 4

Open in new tab

Predictors of clinical recurrence in a Cox regression analysis

Univariate			Multivariate
Risk factor	HR (95% CI)	P-value	Risk factor	HR (95% CI)	P-value
Age, year	1.003 (0.959–1.049)	0.899
Female sex	1.449 (0.510–4.119)	0.486
Body mass index, kg/m²	0.976 (0.827–1.151)	0.772
Heart failure	1.160 (0.333–4.038)	0.816
Hypertension	1.351 (0.500–3.665)	0.55
Diabetes mellitus	1.461 (0.515–4.148)	0.476
Cerebrovascular accident	3.178 (1.117–9.042)	0.03	Cerebrovascular accident	1.008 (0.265–3.839)	0.99
Vascular disease	0.800 (0.183–3.505)	0.767
CHA₂DS₂-VAS_C score	1.278 (0.961–1.699)	0.092
AF duration, mon	0.972 (0.939–1.005)	0.1	AF duration, mon	0.981 (0.935–1.029)	0.429
LA diameter, mm	1.287 (1.163–1.423)	<0.001	LA diameter, mm	1.263 (1.127–1.416)	<0.001
LV ejection fraction, %	0.993 (0.902–1.092)	0.879
Procedure time, min	1.017 (0.983–1.052)	0.329
LA indwelling time, min	1.031 (0.989–1.075)	0.145
Ablation time, min	1.105 (1.014–1.204)	0.022	Ablation time, min	1.013 (0.930–1.104)	0.761
Fluoroscopic time, min	1.006 (0.942–1.074)	0.869
Radiation exposure, mGy	1.001 (0.981–1.021)	0.937
Mean LA pressure	0.950 (0.821–1.099)	0.491
Zero-X (vs. conventional group)	1.103 (0.425–2.861)	0.841

Univariate			Multivariate
Risk factor	HR (95% CI)	P-value	Risk factor	HR (95% CI)	P-value
Age, year	1.003 (0.959–1.049)	0.899
Female sex	1.449 (0.510–4.119)	0.486
Body mass index, kg/m²	0.976 (0.827–1.151)	0.772
Heart failure	1.160 (0.333–4.038)	0.816
Hypertension	1.351 (0.500–3.665)	0.55
Diabetes mellitus	1.461 (0.515–4.148)	0.476
Cerebrovascular accident	3.178 (1.117–9.042)	0.03	Cerebrovascular accident	1.008 (0.265–3.839)	0.99
Vascular disease	0.800 (0.183–3.505)	0.767
CHA₂DS₂-VAS_C score	1.278 (0.961–1.699)	0.092
AF duration, mon	0.972 (0.939–1.005)	0.1	AF duration, mon	0.981 (0.935–1.029)	0.429
LA diameter, mm	1.287 (1.163–1.423)	<0.001	LA diameter, mm	1.263 (1.127–1.416)	<0.001
LV ejection fraction, %	0.993 (0.902–1.092)	0.879
Procedure time, min	1.017 (0.983–1.052)	0.329
LA indwelling time, min	1.031 (0.989–1.075)	0.145
Ablation time, min	1.105 (1.014–1.204)	0.022	Ablation time, min	1.013 (0.930–1.104)	0.761
Fluoroscopic time, min	1.006 (0.942–1.074)	0.869
Radiation exposure, mGy	1.001 (0.981–1.021)	0.937
Mean LA pressure	0.950 (0.821–1.099)	0.491
Zero-X (vs. conventional group)	1.103 (0.425–2.861)	0.841

AF, atrial fibrillation; CI, confidence interval; HR, hazard ratio; LA, left atrium; LV, left ventricle.

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