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Table 1 Clinical characteristics of patients and risk factors associated with oral colonisation by resistant bacteria

From: Oral colonisation by antimicrobial-resistant Gram-negative bacteria among long-term care facility residents: prevalence, risk factors, and molecular epidemiology

VariableSubjects with ARB-positive, n = 37Subjects with ARB-negative, n = 61Univariate analysisP-value
n (%)OR95% CI 
Age ≥ 90 years, n (%)12 (32.4)13 (21.3)1.770.71–4.450.22
Male sex, n (%)14 (37.8)15 (24.6)1.870.77–4.520.16
Ward, n (%)    0.92
 1st floor10 (27.0)17 (27.9)0.960.38–2.400.93
 2nd floor14 (37.8)25 (41.0)0.880.38–2.030.76
 3rd floor13 (35.1)19 (31.1)1.200.50–2.850.68
Dementia15 (40.5)31 (50.8)0.660.29–1.510.32
Strokes (cerebral infarction/ cerebral haemorrhage)16 (43.2)11 (18.0)3.461.38–8.700.007**
Cardiovascular diseases15 (40.5)19 (31.1)1.510.64–3.530.34
Diabetes10 (27.0)10 (16.4)1.890.70–5.100.21
Cancers1 (2.7)5 (8.2)  0.40a
Fractures5 (13.5)11 (18.0)0.710.23–2.240.56
Arthropathy2 (5.4)2 (3.3)  0.63a
Dysarthria or dysphagia13 (35.1)12 (19.7)2.210.88–5.570.09
Inappropriate oral care18 (48.6)26 (42.6)1.280.56–2.900.56
Denture wearing24 (64.9)32 (52.5)1.670.72–3.880.23
Percutaneous endoscopic gastrotomy tubes (PEG tubes)6 (16.2)0 (0.0)  0.002a,**
  1. OR Odds ratio, CI Confidence interval
  2. a Fisher’s Exact Test
  3. *P value ≤ 0.05, **P value ≤ 0.01