Table 2. Comparison of survivin positive and negative expression in high- and low-grade ductal carcinoma in situ .

Survivin (positive-negative)	Nuclear grade classification n (%)
	High	Low
Positive	6 (21.40)	22 (78.60)
Negative	7 (77.80)	2 (22.20)

Fisher's exact test: p=0.004.