Table 3.

Cumulative Probability of Pregnancies Among Women Undergoing Interval Tubal Permanent Contraception Via Filshie Clips, Per 1000 Procedures (95% CI), N = 547

	Years since Filshie clip procedure and follow-up (n)
	1 (514)	2 (497)	3 (466)	4 (410)	5 (359)	6 (323)	7 (291)	8 (258)	9 (207)	10 (165)
All pregnancies	3.8 (0.9–15.0)	7.7 (2.9–20.4)	9.8 (4.1–23.3)	9.8(4.1–23.3)	9.8 (4.1–23.3)	9.8 (4.1–23.3)	9.8 (4.1–23.3)	9.8 (4.1–23.3)	9.8 (4.1–23.3)	9.8 (4.1–23.3)
Verified pregnancies	1.9 (0.3–13.3)	1.9 (0.3–13.3)	2.8 (1.0–15.7)	2.8 (1.0–15.7)	2.8 (1.0–15.7)	2.8 (1.0–15.7)	2.8 (1.0–15.7)	2.8 (1.0–15.7)	2.8 (1.0–15.7)	2.8 (1.0–15.7)

CI, confidence interval.