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Table 2 Baseline characteristics of the patients from single-arm trials

From: Risk of thrombotic events in immune thrombocytopenia patients treated with thrombopoietic agents: a systematic review and meta-analysis

Study

Females, n (%)

Age, years,

Mean (SD) or

Median (range)

Platelet counts per 109/L

(SD or range)

Previous

splenectomy, n (%)

Number of previous treatments, n (%)

Tomiyama et al. 2012

15 (65)

60 (26–72)

17 (10–24)

16 (70)

19 (83)

Brynes et al. 2017

104 (64)

42 (18–80)

59 (36)a

37 (23)

0 (0)

Bussel et al. 2013

45 (68)

51 (20–79)

4 (6)b

20 (30)

≥ 3: 29 (44)

G´omez-Almaguer et al. 2014

6 (50)

50 (20–80)

7 (2–28)

NA

NA

Haselboeck et al. 2013

9 (90)

30 (20–58)

NA

0 (0)

Median number of treatments: 2 (1–3)

Kim et al. 2015

11 (61)

55 (30–71)

14 (1–28)

4 (22)

Median number of treatments: 3 (2–9)

Liu et al. 2022

112 (75)

44 (15)

20 (15)

25 (17)

≥ 1: 76 (51)

Saleh et al. 2013

198 (66)

50 (18–86)

128 (43)a

115 (38)

≥ 3: 47 (16)

Tripathi et al. 2014

15 (60)

27 (9)

14 (5)

0 (0)

0 (0)

Wong et al. 2017

201 (67)

49 (16)

211 (70)c

115 (38)

≥ 3: 160 (53)

van Dijk et al. 2023

7 (44)

53 (14)

23 (9–27)

2 (12)

NA

Mei et al. 2022

25 (68)

40 (28–53)

14 (11–22)

3 (8)

≥ 1: 37 (100)

Mei et al. 2021

241 (88)

41 (18–74)

13 (1–29)

29 (11)

NA

Bussel et al. 2014

38 (72)

50 (18)

15 (28)a

17 (32)

NA

Al-Samkari et al. 2022

23 (59)

46 (14)

18 (46)a

11 (28)

≥ 1: 15 (38)

Bussel et al. 2006

17 (71)

45 (21–65)

9 (4–31)

19 (79)

1–3: 9 (38)

4–6: 12 (50)

> 6: 3 (13)

Gernsheimer et al. 2010

81 (80)

52 (21–88)

16 (2–31)

83 (82)

≥ 3: 79 (78)

Bussel et al. 2009

96 (67)

53 (21–89)

17 (1–50)

86 (60)

≥ 1: 32 (22)

Janssens et al. 2015

244 (60)

56 (18–93)

14 (0–170)

208 (51)

≥ 1: 208 (51)

Kuter et al. 2013

184 (63)

54 (17)

35 (15–100)

95 (33)

≥ 1: 37 (13)

Mihaylov et al. 2020

56 (56)

45 (27–58)

19 (8–42)

23 (23)

≥ 3: 49 (49)

Newland et al. 2006

10 (63)

50 (20–84)

15 (6–31)

13 (81)

NA

Newland et al. 2015

44 (59)

39 (29–57)

20 (12–25)

0 (0)

≥ 1: 44 (57)

Park et al. 2016

12 (67)

40.5 (26–73)

14 (4–30)

4 (22)

≥ 3: 8 (44)

Reiser et al. 2021

50 (48)

67 (55–72)

29 (15–78)

9 (9)

≥ 1: 85 (89)

Shirasugi et al. 2012

31 (71)

56 (25–81)

17 (3–32)

17 (39)

NA

Singh et al. 2022

33 (66)

36 (12)

NA

NA

≥ 1: 50 (100)

Steurer et al. 2016

183 (54)

62 (46–72)

20 (9–35)

116 (34)

≥ 3: 186 (55)

Cai et al. 2017

44 (57)

37 (3–74)

10 (0–44)

NA

NA

  1. NA: not available
  2. a Platelet counts ≤ 15 × 109/L, n (%)
  3. b Platelet counts ≤ 20 × 109/L, n (%)
  4. c Platelet counts ≤ 30 × 109/L, n (%)