Relationship between Perineal Body Length and Degree of Perineal Tears in Primigravidas Undergoing Vaginal Delivery with Episiotomy

Table 4

Relationship between risk factors and perineal tears.

Variable	Perineal tears
	Grades III and IV (n = 21)	Grades I and II (n = 64)
Perineal body length (cm)	2.9 ± 0.2	3.3 ± 0.4	<0.001
Birth weight (grams)	3292.9 ± 335.9	3104.6 ± 291.3	0.018
Head circumference (cm)	33.6 ± 1.1	32.7 ± 1.1	0.004
Duration of second labor phase (minutes)	53.6 ± 9.7	49.8 ± 14.6	0.33