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Table 3 Lymphocyte subpopulation data from the present study and other published studies (1present study, 2 [10], 3 [26], 4 [29].

From: Birth season and environmental influences on blood leucocyte and lymphocyte subpopulations in rural Gambian infants

Subpopulation (absolute counts (× 109/l))

Age (months)

The Gambia1

Guinea Bissau2

UK3

Singapore4

Absolute counts

CD3+

0

2.6

 

3.1

1.7

  

2

3.6

 

2.5

 
  

12

3.6

  

2.7

 

CD4+

0

1.8

 

1.9

1.4

  

2

2.4

2.5

  
  

4

2.5

2.5

  
  

12

2.2

 

2.2

1.8

 

CD8+

0

1.2

 

1.5

 
  

2

1.1

1.2

  
  

12

1.2

 

0.9

 
 

CD19+

0

0.8

 

1

 
  

12

1.6

 

0.9

 
 

CD56+

0

0.8

 

0.9

 
  

12

0.3

 

0.5

 

% counts

CD3+

0

55

 

55

67

  

12

62

 

64

63

 

CD4+

0

38

 

35

47

  

2

38

38

  
  

12

37

37

41

37

 

CD8+

0

26

 

29

20

  

2

17

19

  
  

12

21

 

21

19

 

CD19+

0

16

 

20

 
  

12

27

 

23

 
 

CD56+

0

18

 

20

 
  

12

4

 

11

 

Ratio

CD4+/CD8+

0

1.5

2.3

1.2

 
  

12

1.8

2.0

1.9

Â