Table 2. Estimated Relative Risk (Hazard... | American Society of Hematology

Table 2.

Estimated Relative Risk (Hazard Ratio, HR) and 95% Confidence Interval (CI)

Prognostic Factor	Levels	HR	(95% CI)
Rai stage	Rai 1:0	3.14	(0.6, 16.5)
	Rai 2:0	8.81	(2.0, 38.8)
	Rai 3 or 4:0	28.00	(5.8, 136.0)
Age (yr)^*
No 11q deletion	66:52	4.07	(2.17, 7.62)
11q deletion	66:52	0.54	(0.18, 1.57)
11q deletion^†
Age 52	Yes:no	3.95	(1.64, 9.51)
Age 59	Yes:no	1.47	(0.68, 3.18)
Age 66	Yes:no	0.54	(0.18, 1.65)

Prognostic Factor	Levels	HR	(95% CI)
Rai stage	Rai 1:0	3.14	(0.6, 16.5)
	Rai 2:0	8.81	(2.0, 38.8)
	Rai 3 or 4:0	28.00	(5.8, 136.0)
Age (yr)^*
No 11q deletion	66:52	4.07	(2.17, 7.62)
11q deletion	66:52	0.54	(0.18, 1.57)
11q deletion^†
Age 52	Yes:no	3.95	(1.64, 9.51)
Age 59	Yes:no	1.47	(0.68, 3.18)
Age 66	Yes:no	0.54	(0.18, 1.65)

The effect of age was measured separately for patients with and without 11q deletion comparing the upper and lower quartile of the age distribution.

The effect of 11q deletion was computed for the lower, median, and upper quartile of the age distribution.