Prevalence and Risk Indicators for Anal Incontinence among Pregnant Women

Table 3

Distribution of St. Mark’s score among parous women with OASIS and without OASIS.

	Parous women without previous OASIS	Parous women with previous OASIS
	𝑛=873	𝑛=41
St. Mark’s 0	81.4 (𝑛=711)	63.4 (𝑛=26)
St. Mark’s 1-2	10.4 (𝑛=91)	12.2 (𝑛=5)
St. Mark’s 3–16	8.1 (𝑛=71)	24.4 (𝑛=10)
St. Mark’s 5–16	3.8 (𝑛=33)	12.2 (𝑛=5)
St. Mark’s 7–16	2.3 (𝑛=20)	7.3 (𝑛=3)