Perineal Distensibility Using Epi-no in Twin Pregnancies: Comparative Study with Singleton Pregnancies

Table 2

Comparison of data from measurements on Epi-no balloon circumference between the twin and singleton pregnancy groups.

Epi-no balloon circumference	𝑛	Minimum	Maximum	Mean	Standard deviation	P^*
Twin pregnancy	20	14	21.5	16.51	2.05	0.50
Singleton pregnancy	23	13.5	19.5	16.13	1.67

∗Unpaired Student’s 𝑡-test.