Table 4.

Univariate analysis for relapse assessment at 1 year and 3 year after azathioprine

	Hazard ratio	P	2-year expected events (SE)	5-year expected events (SE)
Age (per decade)	0.836	0.534
21 yr			0.082 (0.015)	0.273 (0.062)
38 yr			0.061 (0.018)	0.202 (0.067)
Sex	1.614	0.404
Male			0.086 (0.024)	0.286 (0.05)
Female			0.053 (0.015)	0.177 (0.083)
Duration of ITP (years)	1.875 (per 1 log year)	0.085
1 year			0.054 (0.004)	0.182 (0.011)
3 year			0.107 (0.09)	0.364 (0.022)
Prior therapy	2.036	0.207
≤3 prior lines of therapy			0.05 (0.012)	0.169 (0.041)
>3 prior lines of therapy			0.102 (0.016)	0.346 (0.055)
Hemoglobin	0.88	0.403
11			0.086 (0.013)	0.288 (0.065)
14			0.057 (0.014)	0.191 (0.049)
WBC	0.872 (per 1000 WBC/microL)	0.15
7000			0.099 (0.011)	0.341 (0.108)
11800			0.051 (0.024)	0.177 (0.081)
Paltelets	1.009 (per 1000 platelets/microL)	0.841
6000			0.066 (0.018)	0.221 (0.061)
15000			0.072 (0.013)	0.239 (0.039)