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. 2010 Nov 9;3:25. doi: 10.1186/1757-2215-3-25

Table 4.

Ovarian ultrasound measurements in PCOS and control women

	Control	PCOS
	N = 12	N = 24	P-value
Ovarian Volume (cm³)	4.98 ± 2.91	9.13 ± 3.98	P = <0.01^a
Ovarian Area (cm²)	41.3 ± 16.3	47.4 ± 17.4	P = 0.31
Stromal Volume (cm³)	0.59 ± 0.66	11.4 ± 4.57	P = <0.001 ^a
Stromal Area (cm²)	8.12 ± 5.46	13.9 ± 6.10	P = <0.01 ^a
S/A ratio	4.37 ± 1.58	7.49 ± 4.45	P = <0.05 ^a

Values are mean ± SD;

S/A ratio = ratio between the stromal and the total ovarian area

^aP < 0.001 (Student's t test) PCOS vs control group