Table 2.

Comparison of pelvimetry dimensions for women with and without pelvic floor disorders, 6 months from delivery. All dimensions are in millimeters unless otherwise noted. Values represent mean ± SD. P < 0.01 considered significant, due to multiple comparisons.

	Urinary Incontinence			Prolapse Stage					Fecal Incontinence†
	Yes (n= 73)	No (n=167)	P value*	Stage 0 (n=67)	Stage 1 (n=79)	Stage 2 (n=75)	Stage 3-4 (n=12)	P value*	Yes (n= 26)	No (n= 80)	P value*
Transverse inlet diameter (Sagittal view)	105.6 ± 6.7	105.4 ± 7.5	0.59	103.6 ± 7.9	105.6 ± 6.7	105.9 ± 7.1	109.8 ± 9.4	0.034	106.78 ± 7.35	104.03 ± 7.45	0.56
Transverse inlet diameter (Oblique view)	124.2 ± 7.5	124.3 ± 8.4	0.69	123.0 ± 8.	124.8 ± 8.0	124.5 ± 7.1	124.8 ± 12.5	0.20	126.02 ± 7.89	122.9 ± 8.4	0.81
Interspinous distance	106.5 ± 7.3	104.4 ± 8.6	0.10	103.1 ± 8.7	105.4 ± 8.2	105.8 ± 8.4	106.1 ± 8.2	0.68	106.4 ± 8.35	104.67 ± 8.0	0.808
Intertuberous distance	124.5 ± 8.7	121.0 ± 9.9	0.017	119.0 ± 9.1	121.8 ± 9.7	124.5 ± 9.8	122.3 ± 9.8	0.50	125.41 ± 8.78	120.65 ± 9.1	0.170
Angle of subpubic arch (degrees)	85.4 ± 6.3	83.0 ± 7.1	0.017	82.6 ± 6.9	83.7 ± 6.9	85.1 ± 7.4	84.5 ± 5.0	0.54	86.21 ± 6.7	83.42 ± 5.9	0.068
Obstetrical conjugate	122.2 ± 11.2	122.4 ± 10.6	0.83	121.5 ± 8.9	122.0 ± 12.5	122.2 ± 10.3	125.8 ± 9.8	0.34	121.57 ± 11.79	122.1 ± 8.9	0.912
Length of sacrum and coccyx	115.7 ± 13.5	118.7 ± 14.8	0.39	115.1 ± 15.6	118.6 ± 14.0	118.4 ± 13.4	124.0 ± 16.9	0.30	118.9.1 ± 13.24	118.12 ± 12.6	0.303
Depth of sacral hollow	39.4 ± 7.3	40.0 ± 7.8	0.56	39.0 ± 7.5	40.5 ± 8.3	39.7 ± 6.7	39.5 ± 9.5	0.53	44.6 ± 7.9	38.5 ± 7.5	0.005
Anterioposterior outlet	111.8 ± 10.2	111.7 ± 11.4	0.84	115.2 ± 12.0	111.2 ± 9.4	109.4 ± 11.0	107.6 ± 12.9	0.38	107.7 ± 8.6	110.32 ± 9.12	0.792

^*P value adjusted for site, race and cohort.

^†Analysis limited to women with a known anal sphincter tear