Measuring the space between vagina and rectum as it relates to rectocele

Table 1 Data on the space between the vagina and the rectum at three levels (mm)

n	Group 1 (upper 1/3 level)	Group 2 (middle level)	Group 3 (lower 1/3 level)
n1	3.61	4.51	9.93
n2	4.02	4.87	10.14
n3	3.34	4.92	10.26
n4	4.31	4.38	10.38
n5	3.29	4.65	9.87
n6	4.04	4.73	9.66
n7	3.83	4.89	9.54
n8	3.91	4.99	10.23
n9	3.96	5.08	9.66
n10	4.26	4.16	9.78
n11	3.73	4.26	9.88
n12	4.26	4.34	9.46
n13	2.96	4.67	9.83
n14	4.15	4.54	10.23
n15	3.86	4.78	10.49
n16	4.11	4.96	10.57
n17	4.29	5.21	11.04
n18	4.16	4.17	10.87
n19	3.97	4.49	9.38
n20	3.86	4.55	9.96

Table 2 Comparison of the space difference at the upper 1/3 level of the vagina, the middle level of the vagina and the lower 1/3 level of the vagina

	Group 1 (n = 20)	Group 2 (n = 20)	Group 3 (n = 20)	P value
mean ± SD (mm)	3.896 ± 0.3617	4.6575 ± 0.3052	10.058 ± 0.4534	P < 0.01