Table 4.

Overall Survival Classified According to the Scoring System.

Score		N		Median OS (95%CI)		1-year OS rate (95%CI)		p value
0		12		680 days (220-898 days)		80.8% (42.3-94.9%)		0.00008
1		11		90 days (62-345 days)		18.2% (2.9-44.2%)
2		4		82 days (19 days-NA)		0% (NA-NA)

N: number, OS: overall survival, CI: confidence interval, NA: not applicable

ECOG PS ≥2 and Plt <27,000/μL were given one point each, and a clinical scoring system was created. Log-rank testing was performed on the three groups based on the scores.