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Table 1 Patient demographics and baseline disease state

From: Darbepoetin alfa for treating chemotherapy-induced anemia in patients with a baseline hemoglobin level < 10 g/dL versus ≥10 g/dL: an exploratory analysis from a randomized, double-blind, active-controlled trial

 

Baseline Hemoglobin < 10 g/dL

Baseline Hemoglobin ≥10 g/dL

 

Darbepoetin alfa 500 mcg Q3W

N = 176

Darbepoetin alfa 2.25 mcg/kg QW

N = 175

Total

N = 351

Darbepoetin alfa 500 mcg Q3W

N = 177

Darbepoetin alfa 2.25 mcg/kg QW

N = 177

Total

N = 354

Sex, n (%)

      

   Female

93 (53)

97 (55)

190 (54)

93 (53)

100 (56)

193 (55)

Age, years

      

   Median (Min, Max)

59 (20, 86)

61 (20, 83)

60 (20, 86)

61 (20, 85)

60 (21, 84)

60.5 (20, 85)

   ≥65, n (%)

59 (34)

65 (37)

124 (35)

65 (37)

65 (37)

130 (37)

   ≥75, n (%)

15 (9)

14 (8)

29 (8)

19 (11)

12 (7)

31 (9)

Tumor type, n (%)

      

   Large Intestine/Colon

30 (17)

16 (9)

46 (13)

35 (20)

35 (20)

70 (20)

   Breast

23 (13)

27 (15)

50 (14)

34 (19)

28 (16)

62 (18)

   NSCLC

17 (10)

15 (9)

32 (9)

17 (10)

17 (10)

34 (10)

Disease stage at diagnosis, n (%)

      

   I

13 (7)

10 (6)

23 (7)

15 (8)

8 (5)

23 (6)

   II

25 (14)

38 (22)

63 (18)

40 (23)

37 (21)

77 (22)

   III

53 (30)

49 (28)

102 (29)

42 (24)

44 (25)

86 (24)

   IV

74 (42)

62 (35)

136 (39)

59 (33)

71 (40)

130 (37)

   Other/Missing or Unknown

11 (6)

16 (9)

27 (8)

21 (12)

17 (10)

38 (11)

Prior chemotherapy, n (%)

169 (96)

153 (87)

322 (92)

162 (92)

154 (87)

316 (89)

Prior platinum chemotherapy, n (%)

68 (39)

59 (34)

127 (36)

59 (33)

63 (36)

122 (34)

Prior radiotherapy, n (%)

60 (34)

47 (27)

107 (30)

61 (34)

56 (32)

117 (33)

Prior erythropoietic therapy, n (%)a

21 (12)

21 (12)

42 (12)

18 (10)

13 (7)

31 (9)

Baseline hemoglobin, g/dL

      

   Mean (SD)

9.01 (0.78)

9.09 (0.64)

9.05 (0.71)

10.50 (0.29)

10.46 (0.30)

10.48 (0.30)

   Median (Min, Max)

9.20 (5.9, 9.9)

9.20 (6.8, 9.9)

9.20 (5.9, 9.9)

10.50 (10.0, 10.9)

10.50 (10.0, 11.8)

10.50 (10.0, 11.8)

  1. Q3W = every three weeks; QW = weekly; Min = minimum; Max = maximum; NSCLC = non-small cell lung cancer; SD = standard deviation
  2. aPrior erythropoietic agents were not administered within 4 weeks of study day 1.