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Table 2 Distribution of ERR and CR among the study population and by infection intensity

From: Schistosoma haematobium infection morbidity, praziquantel effectiveness and reinfection rate among children and young adults in Gabon

 

Egg reduction rate (ERR)

Cure rate (CR)

Post dose 1

Post-dose 3

P-valuec

Post-dose 1

Post-dose 3

P-valuec

e/Ea

%

P-value

e/Ea

%

P-value

 

n/Nb

%

P-value

n/Nb

%

P-value

 

Study population

309/4369

92.9

 

408/7953

94.9

0.003

52/67

77.6

 

72/82

87.8

0.15

Age

  

< 0.0001

  

< 0.0001

< 0.0001

  

0.95d

  

0.91

0.78

 6–8

5/313

98.4

 

7/2017

99.7

  

10/12

83.3

 

13/15

86.7

  

 9–11

69/1727

96.0

 

70/2739

97.4

  

19/25

76.0

 

24/27

92.0

  

 12–14

223/1420

84.3

 

99/1514

93.5

  

16/21

76.2

 

21/25

88.9

  

 15–23

12/909

98.7

 

232/1683

86.2

  

7/9

77.8

 

14/15

93.3

  

Gender

  

< 0.0001

  

< 0.0001

< 0.0001

  

0.058

  

0.09

0.007

 Female

7/1914

99.6

 

41/4602

99.1

  

27/30

90.0

 

39/41

95.1

  

 Male

302/2455

87.7

 

367/3351

89.0

  

25/37

67.6

 

33/41

80.5

  

Location

     

0.020

        

 Bindo

0/1

100

 

38/512

92.6

  

1/1

100

 

3/4

75.0

  

 Zilé-PK

309/4368

92.9

 

370/7441

95.0

 

0.0001

51/66

77.3

 

69/78

88.5

 

0.12

Infection intensity

  

< 0.0001

  

< 0.0001

< 0.0001

  

0.01d

  

0.004d

< 0.0001

 Light

57/519

89.0

 

2/566

99.6

  

40/46

87.0

 

45/46

97.8

  

 Heavy

252/3850

93.5

 

406/7387

94.5

  

12/21

57.1

 

27/36

75.0

  
  1. aE is the total Schistosoma egg counts at baseline and e is the total Schistosoma egg counts at control
  2. bN is the number of participants treated at baseline and n is the number of participants found negative at control
  3. cP-value to assess the significant difference observed between post-dose 1 and post-dose 3 results
  4. dFisher’s exact test applied
  5. Note: The ERR and CR was assessed at PZQ post-dose1 (n = 67) and post-dose 3 (n = 82)