. Author manuscript; available in PMC: 2013 Sep 11.

Published in final edited form as: J Minim Invasive Gynecol. 2009 Nov-Dec;16(6):692–699. doi: 10.1016/j.jmig.2009.06.022

Table 6.

Comparison of Outcomes With Previously Published Studies^a

	RFA		TBA
Study	No.	%	No.	%	RR (95% CI)
Treatment failure at 12 months
Abbott et al (20), 2003	6/37	16	0/18	0	6.50 (0.39, 109.40)
Bongers et al (19), 2004	4/83	5	4/43	9	0.52 (0.14, 1.97)
Current study	5/197	3	9/178	5	0.50 (0.17, 1.47)
Postablation amenorrhea
Abbott et al (20), 2003	16/37	43	2/18	11	3.89 (1.00, 15.13)
Bongers et al (19), 2004	34/83	41	3/43	7	5.87 (1.91, 18.02)
Current study	70/221	32	26/191	14	2.33 (1.55, 3.49)

Abbreviations: CI, confidence interval; RFA, bipolar radiofrequency ablation; RR, risk ratio; TBA, thermal balloon ablation.

RevMan software (version 4.2.8; The Cochrane Collaboration, Oxford, United Kingdom) was used to calculate risk ratios and 95% confidence intervals using the random effects statistical method.