Table F4Study Quality Ratings of Included RCTs Comparing Radiofrequency Catheter Ablation with Cryoballoon Ablation in Patients with Paroxysmal or Persistent Atrial Fibrillation

Methodological PrincipleHerrera Siklody
(2012)81		Perez Castellano
(2014)76
Study Design
  Randomized controlled trial
  Prospective cohort study
  Retrospective cohort study
  Case-control
  Case-series
✓
✓
Random sequence generation*✓
Statement of concealed allocation*
Intention to treat*✓
Independent or blinded outcome assessment✓
Patients blinded to treatment received
Attrition (≤ 20% overall; ≤ 10% difference between groups)✓
Controlling for possible confounding†✓✓
Full reporting on prespecified outcomes✓✓
Overall Quality RatingPoorFair
*

Applies only to randomized controlled trials

†

Groups must be comparable on baseline characteristics or evidence of control for confounding presented

Blank cells indicate that the criterion was either not met or that it could not be determined

From: APPENDIX F, Quality Assessment of Included Studies

Cover of Catheter Ablation for Treatment of Atrial Fibrillation
Catheter Ablation for Treatment of Atrial Fibrillation [Internet].
Skelly A, Hashimoto R, Al-Khatib S, et al.
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