Expression of Prostacyclin-Synthase in Human Breast Cancer: Negative Prognostic Factor and Protection against Cell Death In Vitro

Table 2

Kaplan-Meier overall survival analysis for different immunoreactive scores.

Cutoff (IRS)	Number	Overall survival prognosis
		Log-rank	Corrected
≥1	99/94	5.56	0.0184
≥2	129/64	4.37	0.0377
≥3	150/43	8.37	0.0038
≥4	161/32	6.35	0.0117
≥5	177/16	4.50	0.0338

IRS = immunoreactive score, Bonferroni correction for multiple testing.