Table 3. The proportion of primary pathogens and combined bacteria detected by multiplex real-time PCR

Pathogens	Primary		Combined		Total
	N	%	N	%	n	%
Streptococcus pneumoniae	12	3.5	44	12.9	56	16.4
Streptococcus agalactiae	0	0	2	0.6	2	0.6
Staphylococcus aureus (MRSA)	1	0.3	6	1.8	7	2.1
Staphylococcus aureus (MSSA)	1	0.3	0	0	1	0.3
Coagulase negative Staphylococcus	2	0.6	3	0.9	5	1.5
Staphylococcus epidermidis (MRSE)	1	0.3	20	5.9	21	6.2
Enterococcus faecalis	2	0.6	5	1.5	7	2.1
Enterococcus faecium	2	0.6	7	2.1	9	2.6
Escherichia coli	7	2.1	26	7.6	33	9.7
Klebsiella pneumoniae	15	4.4	48	14.1	63	18.5
Enterobacter cloaceae	0	0	1	0.3	1	0.3
Morganella morganii	0	0	12	3.5	12	3.5
Providencia sp.	0	0	11	3.2	11	3.2
Proteus mirabilis	0	0	5	1.5	5	1.5
Acinetobacter baumannii	15	4.4	44	12.9	59	17.3
Burkholderia cepacia	3	0.9	6	1.8	9	2.6
Pseudomonas aeruginosa	5	1.5	10	2.9	15	4.4
Moraxella catarrhalis	2	0.6	2	0.6	4	1.2
Haemophilus influenzae	24	7.0	24	7.0	48	14.1
Haemophilus influenzae type B	0	0	1	0.3	1	0.3
Stenotrophomonas maltophilia	4	1.2	25	7.3	29	8.5
Mycoplasma sp.	0	0	21	6.2	21	6.2
Total	96		323		419

MRSA, methicillin-resistant Staphylococcus aureus; MSSA, methicillin-susceptible Staphylococcus aureus; MRSE, methicillin-resistant Staphylococcus epidermidis.