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. 2010 Aug 9;2:211–220. doi: 10.2147/ijwh.s6914

Figure 1.

Figure 1

Previous use of contraceptives and risk of tubal occlusion presented as odds ratios and 95% Confidence Intervals.

Note: Women with no previous use of contraception, rhythm method or withdrawal comprised the reference group. Hormonal methods only included oral contraceptives or injectables. From data of Hubacher et al 2001.75