Table 1.

Weighted Scores for the Immunohistochemical Staining of SPARC in Ovarian Tissues^*

Ovarian tissues	Sample number	Mean weighted score†	Specimens with positive staining, %
Normal	25	11.5 ± 1.3	100
Benign	12	10.8 ± 2.4	100
Borderline	16	5.8 ± 0.5*	100
Invasive
Grade I	21	3.7 ± 2.2*	100
Grade II	13	1.3 ± 1.6*	85
Grade III	24	0.9 ± 0.1*	87

*Weighted scores ranging from 0 to 12 represent both the intensity of the immunostaining and the percentage of positive cells.

^†Values are given as means ± SEM. Asterisks behind the values denote P < 0.05 as determined by one-tailed t-test. These values are significantly different from the mean value obtained from the staining of normal ovaries.