Prevalence and risk factors for Staphylococcus aureus nasopharyngeal carriage during a PCV trial

BMC Infectious Diseases

Table 2 Univariable analysis for association of S. aureus carriage with covariables

Variables	S. aureus ⁺	%	S. aureus ⁻	%	Total	OR	95% CI
Variables	n	%	n	%	Total	OR	95% CI
N	347	27.5	917	72.5	1264
Age (years)						1.05	0.96, 1.15
Sex
Male	194	29.5	464	70.5	658
Female	153	25.3	453	74.7	606	0.81	0.59, 1.11
Group
Partially vaccinated	221	30.9	495	69.1	716
Wholly vaccinated	126	23.0	422	77.0	548	1.57	1.14, 2.15
Ethnicity
Jola	229	26.2	646	73.8	875
Fula	17	33.3	34	66.7	51	1.42	0.67, 3.02
Mandinka	81	29.2	196	70.8	277	1.15	0.78, 1.69
Other	20	32.8	41	67.2	61	1.51	0.74, 3.10
Attended school
Student	266	28.3	673	71.7	939
Non-student	81	23.3	244	76.7	325	0.83	0.60, 1.16
Smoker in household
No	189	28.0	487	72.0	676
Yes	158	26.9	430	73.1	588	1.01	0.76, 1.34
Education
< 1 yr	120	23.8	384	76.2	504
> =1 yr	227	29.9	533	70.1	760	1.42	1.06, 1.91
Ability to read
No	160	24.7	488	75.3	648
Yes	187	30.4	429	69.6	616	1.32	1.00, 1.74
Ability to write
No	198	25.6	574	74.4	952
Yes	149	30.3	343	69.7	492	1.25	0.93, 1.68
Season
Dry	221	24.8	669	75.2	890
Rainy	126	33.7	248	66.3	374	1.59	1.20, 2.11
Any pneumococci
No	129	30.4	296	69.6	425
Yes	218	26.0	621	74.0	839	0.81	0.61, 1.07
Vaccine type (VT)
No	311	27.3	829	72.7	1140
Yes	36	29.0	88	71.0	124	1.10	0.71, 1.72
Non-vaccine type (NVT)
No	156	29.9	366	70.1	522
Yes	191	25.7	551	74.3	742	0.81	0.62, 1.07

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