Viral and bacterial upper respiratory tract infection in hospital health care workers over time and association with symptoms

Table 5 Univariate and multivariate analysis (n = 223)

Variable	Bacterial colonisation	Rate	OR (95% CI)	AOR (95% CI)	P value
CRI
Yes	12/12	100	3.72 (0.19 to 72.55)	3.64 (0.22 to 60.36)	0.367
No	184/211	87.2	Ref	Ref
Gender
Male	26/35	74.3	0.31 (0.12 to 0.75)	0.33 (0.11 to 1.01)	0.052
Female	170/188	90.4	Ref	Ref
Age			0.97 (0.93 to 1.02)	0.98 (0.93 to 1.03)	0.549
Profession
Doctor	89/104	85.6	0.66 (0.30 to 1.49)	0.92 (0.32 to 2.59)	0.869
Nurses	107/119	89.9	Ref	Ref
Smoking status
Current/ex-smoker	8/11	72.7	0.34 (0.08 to 1.37)	0.54 (0.12 to 2.42)	0.418
Never	188/212	88.7	Ref	Ref
Influenza vaccine
Yes	42/48	87.5	0.95 (0.36 to 2.52)	0.69 (0.26 to 1.86)	0.463
No	154/175	88
Medical conditions^a
Yes	25/29	86.2	0.84 (0.27 to 2.63)	0.77 (0.24 to 2.46)	0.664
No	171/194	88.1	Ref	Ref
High risk procedures^b
Yes	124/143	86.7	0.72 (0.30 to 1.74)	0.72 (0.26 to 2.01)	0.528
No	72/80	88.9	Ref	Ref
Mask use
Yes	172/196	87.8	0.90 (0.25 to 3.20)	0.83 (0.24 to 2.82)	0.765
No	24/27	88.9	Ref	Ref
Ward
Respiratory	81/99	81.8	Ref	Ref
Paediatric	44/47	93.6	3.26 (0.91 to 11.68)	2.72 (0.78 to 9.47)	0.117
Fever clinics	29/31	93.5	3.22 (0.70 to 14.75)	2.62 (0.56 to 12.24)	0.221
Emerg/ICU^c	42/46	91.3	2.33 (0.74 to 7.38)	2.52 (0.77 to 8.24)	0.126

Bold shows significant result
^aInclude asthma, diabetes, immunosuppression and other
^bInclude suctioning of airways, endotracheal intubation, sputum induction, chest, physiotherapy bronchoscopy
^c45 cases in emergency and 1 in intensive medication unit

ISSN: 1471-2334