Table 1.

Mean length distribution of third complementarity-determining region of the heavy chain in septic premature infants

InfantRace*SexOrganism cultured from the bloodTime period†Effective gestational age‡Mean HCDR3 length ± SD
B-08 A-A M Staphylococcus Birth 23  
    (coagulase negative) 3 days 35 15.7  ±  0.3 
    2 weeks 37 15.3  ±  0.5 
    4 weeks 39 14.6  ±  0.5 
B-01 A-A M Enterococcus Birth 24  
    3 days 36 15.0  ±  0.6  
    2 weeks 38 15.3  ±  0.4 
    4 weeks 40 15.5  ±  0.4 
B-02 A-A F Staphylococcus Birth 25  
    (coagulase negative) 3 days 29 14.6  ±  0.8 
    2 weeks 31 15.9  ±  0.8 
    4 weeks 33 16.2  ±  0.7 
    12 weeks 41 16.5  ±  0.6 
B-05 W M Staphylococcus Birth 26  
    (coagulase negative) 2 weeks 37 15.3  ±  0.9 
    4 weeks 39 15.1  ±  0.8 
    8 weeks 43 16.3  ±  0.7 
B-06 A-A F Staphylococcus Birth 26  
    (coagulase negative) 4 weeks 32 13.1  ±  0.7 
B-10 W M Staphylococcus Birth 26  
    (coagulase negative) 2 weeks 30 14.9  ±  0.8 
    + yeast 4 weeks 32 14.8  ±  0.7 
B-09 W F Staphylococcus Birth 28  
    (coagulase negative) 2 weeks 31 15.5  ±  0.4 
B-11 W F Staphylococcus Birth 28  
    (coagulase negative) 2 weeks 31 16.0  ±  0.5 
    4 weeks 35 16.2  ±  0.6 
    8 weeks 39 15.4  ±  0.4 
B-12 W M Streptococcus Birth 38  
    (α hemolytic) 2 weeks 41 16.5  ±  0.4 
B-13 W F Staphylococcus Birth 23  
    (coagulase negative) 2 weeks 25 13.2  ±  0.3 
    8 weeks 31 13.8  ±  0.4 
    12 weeks 35 14.8  ±  0.4 
InfantRace*SexOrganism cultured from the bloodTime period†Effective gestational age‡Mean HCDR3 length ± SD
B-08 A-A M Staphylococcus Birth 23  
    (coagulase negative) 3 days 35 15.7  ±  0.3 
    2 weeks 37 15.3  ±  0.5 
    4 weeks 39 14.6  ±  0.5 
B-01 A-A M Enterococcus Birth 24  
    3 days 36 15.0  ±  0.6  
    2 weeks 38 15.3  ±  0.4 
    4 weeks 40 15.5  ±  0.4 
B-02 A-A F Staphylococcus Birth 25  
    (coagulase negative) 3 days 29 14.6  ±  0.8 
    2 weeks 31 15.9  ±  0.8 
    4 weeks 33 16.2  ±  0.7 
    12 weeks 41 16.5  ±  0.6 
B-05 W M Staphylococcus Birth 26  
    (coagulase negative) 2 weeks 37 15.3  ±  0.9 
    4 weeks 39 15.1  ±  0.8 
    8 weeks 43 16.3  ±  0.7 
B-06 A-A F Staphylococcus Birth 26  
    (coagulase negative) 4 weeks 32 13.1  ±  0.7 
B-10 W M Staphylococcus Birth 26  
    (coagulase negative) 2 weeks 30 14.9  ±  0.8 
    + yeast 4 weeks 32 14.8  ±  0.7 
B-09 W F Staphylococcus Birth 28  
    (coagulase negative) 2 weeks 31 15.5  ±  0.4 
B-11 W F Staphylococcus Birth 28  
    (coagulase negative) 2 weeks 31 16.0  ±  0.5 
    4 weeks 35 16.2  ±  0.6 
    8 weeks 39 15.4  ±  0.4 
B-12 W M Streptococcus Birth 38  
    (α hemolytic) 2 weeks 41 16.5  ±  0.4 
B-13 W F Staphylococcus Birth 23  
    (coagulase negative) 2 weeks 25 13.2  ±  0.3 
    8 weeks 31 13.8  ±  0.4 
    12 weeks 35 14.8  ±  0.4 

HCDR3 indicates the third complementarity-determining region of the heavy chain.

*

Race is designated A-A for African American or W for white.

†

Designated as birth or the number of days or weeks since the first positive blood culture for Group B Streptococci.

‡

Age of the infant as assigned by the best obstetrical estimate.

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