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Table 3 Risk factors for carriage of Group B Streptococcus

From: Associations between nasopharyngeal carriage of Group B Streptococcus and other respiratory pathogens during early infancy

Risk factor Category N Positivity of outcome Univariable analysis Multivariable analysis
n (%) OR (95 % CI) p value OR (95 % CI) p value
Sex Male 579 90 (15.54) 1   1  
Female 591 72 (12.18) 0.75 (0.54;1.05) 0.097 0.73 (0.52;1.04) 0.08
Place of Birth Other 98 9 (9.18) 1    
H/F 1072 153 (14.27) 1.65 (0.81;3.34) 0.167 - -
Tribe Mandika 463 62 (13.39) 1    
Wolof 164 22 (13.41) 1 (0.59;1.69) 0.994 - -
Fula 144 19 (13.19) 0.98 (0.57;1.71) 0.952 - -
Jola 215 24 (11.16) 0.81 (0.49;1.34) 0.418 - -
Others 184 35 (19.02) 1.52 (0.96;2.39) 0.072 - -
*sleep Room 0 374 59 (15.78) 1    
1 433 58 (13.39) 0.83 (0.56;1.22) 0.339 - -
2 214 28 (13.08) 0.8 (0.49;1.31) 0.377 - -
3+ 134 14 (10.45) 0.62 (0.34;1.16) 0.134 - -
History of ARI 0 1041 155 (14.89) 1   1  
1 129 7 (5.43) 0.33 (0.15;0.72) 0.005 0.28 (0.13;0.63) 0.002
S. pneumoniae Negative 441 88 (19.95) 1   1  
Positive 729 74 (10.15) 0.45 (0.32;0.63) <0.001 0.47 (0.33;0.67) <0.001
H. influenzae Negative 802 124 (15.46) 1    
Positive 368 38 (10.33) 0.63 (0.43;0.93) 0.019 - -
S. aureus Negative 587 58 (9.88) 1   1  
Positive 583 104 (17.84) 1.98 (1.4;2.79) <0.001 1.89 (1.33;2.69) <0.001
M. catarrhalis Negative 795 126 (15.85) 1   1  
Positive 375 36 (9.6) 0.56 (0.38;0.84) 0.004 0.61 (0.40;0.92) 0.017
  1. H/F health facility, ARI acute respiratory infection; *Number of other siblings <5 years sleeping in the same room with subject. (−) indicates variables which were not included in the multivariate analysis