Skip to main content

Table 6 Treatment response of patients with chronic ITP with IL-4 and IL-4Rα

From: The cytokine polymorphisms affecting Th1/Th2 increase the susceptibility to, and severity of, chronic ITP

 

IL4 CC

IL4 non-CC

 

IL4Rα QQ

IL4Rα non-QQ

 

N

(%)

N

(%)

P value

OR

95% CI

N

(%)

N

(%)

P value

OR

95% CI

All treatment, no. of cases (%)

14

(82.4)

83

(76.1)

0.76

1.39

0.37–5.22

71

(80.7)

26

(68.4)

0.10

2.08

0.87–4.97

Second line treatment, no. of cases (%)

9

(52.9)

28

(25.7)

0.04

3.25

1.15–9.25

29

(33.0)

8

(21.1)

0.21

1.84

0.75–4.52

Response to all treatments

 CR, no. of cases (%)

9

(64.3)

59

(71.1)

0.75

0.73

0.22–2.41

50

(70.4)

18

(69.2)

1.00

1.06

0.40–2.81

 RR (CR+R), no. of cases (%)

13

(92.9)

79

(95.2)

0.55

0.66

0.68–6.36

68

(95.8)

24

(92.3)

0.61

1.89

0.30–12.00

Prednisolone therapy, no. of cases (%)

12

(70.6)

70

(64.2)

0.79

1.34

0.44–4.08

62

(70.5)

20

(52.6)

0.05

2.15

0.98–4.70

Response to prednisolone therapy

 CR, no. of cases (%)

5

(41.7)

40

(57.1)

0.36

0.54

0.16–1.85

34

(54.8)

11

(55.0)

1.00

0.99

0.36–2.74

 RR (CR+R), no. of cases (%)

10

(83.3)

64

(91.4)

0.33

0.47

0.08–2.65

56

(90.3)

18

(90.0)

1.00

1.04

0.19–5.60

Splenectomy, no. of cases (%)

5

(29.4)

14

(12.8)

0.14

2.83

0.87–9.24

15

(17.0)

4

(10.5)

0.43

1.75

0.54–5.66

Response to splenectomy

 CR, no. of cases (%)

4

(80.0)

7

(50.0)

0.34

4.00

0.35–45.38

7

(46.7)

4

(100)

0.10

  

 RR (CR+R), no. of cases (%)

5

(100)

9

(64.3)

0.26

  

10

(66.7)

4

(100)

0.53

  

Eradication of Helicobacter pylori, no. of cases (%)

7

(41.2)

36

(33.6)

0.59

1.38

0.49–3.93

33

(37.9)

10

(27.0)

0.24

1.65

0.71–3.84

Response to eradication of Helicobacter pylori

 CR, no. of cases (%)

4

(57.1)

16

(44.4)

0.69

1.67

0.33–8.55

15

(45.5)

5

(50.0)

1.00

0.83

0.20–3.44

Severe ITP, no. of cases (%)

5

(29.4)

19

(17.4)

0.32

1.97

0.62–6.26

19

(21.6)

5

(13.2)

0.33

1.82

0.62–5.29

Refractory ITP, no. of cases (%)

0

(0)

10

(9.2)

0.36

  

9

(10.2)

1

(2.6)

0.28

4.22

0.52–34.51

Corticosteroid-dependent, no. of cases (%)

5

(33.3)

32

(30.2)

0.77

1.16

0.37–3.66

28

(33.3)

9

(24.3)

0.39

1.56

0.65–3.74

  1. Second line treatment: Patients in need of second line, CR (complete response): platelet count of at least 100 × 109/L, R (response): platelet count between 30 and 100 × 109/L and at least double the baseline count, severe ITP: presence of bleeding symptoms at presentation sufficient to mandate treatment, or occurrence of new bleeding symptoms requiring additional therapeutic intervention with a different platelet-enhancing agent or an increased dose, refractory ITP: failure to achieve at least R or loss of R after splenectomy, loss of R: platelet count 30 × 109/L or a less than 2-fold increase in platelet count from baseline or the presence of bleeding, corticosteroid-dependence: the ongoing need for continuous corticosteroid administration or frequent courses of corticosteroids to maintain a platelet count at or above 30 × 109/L and/or to avoid bleeding.
  2. ITP immune thrombocytopenia, IFN interferon, IL interleukin, OR odds ratio, CI confidence interval, SD standard deviation