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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