Risk factors for colonization by carbapenemase-producing bacteria in Spanish long-term care facilities: a multicentre point-prevalence study

Table 3 Comparison of potential predictive factors for CPB colonization between resident cases and controls

Variable	Cases (n = 71)	Controls (n = 689)	P value
Age (years)	81 (53–96)	83 (58–95)	0.125
Male (sex)	32 (45.1)	219 (31.8)	0.023
Single room	6 (8.5)	87 (12.6)	0.320
Length of stay at LTCF (days)	1122 (16–6639)	1163 (69- 5170)	0.178
Intrinsic risk factors
Diabetes mellitus	23 (32.4)	236 (34.3)	0.795
Dermatitis	25 (35.2)	195 (28.3)	0.201
Peripheral vascular disease	20 (28.2)	156 (22.6)	0.272
Chronic kidney disease	3 (4.2)	55 (7.9)	0.264
Chronic obstructive pulmonary disease	11 (15.5)	85 (12.3)	0.426
Active infection	19 (26.8)	112 (16.3)	0.023
Urinary incontinence	59 (83.1)	501 (72.8)	0.041
Faecal incontinence	53 (74.7)	415 (60.2)	0.013
Extrinsic risk factors
Dialysis	0	3 (0.4)	0.987
Central venous catheter	0	7 (1)	0.968
Urinary catheter	4 (5.6)	17 (2.5)	0.121
Feeding tubes	5 (7)	26 (3.8)	0.196
Previous antibiotic use^a	37 (52.1)	275 (39.9)	0.039
Health requirement^b
High	45 (63.4)	322 (46.7)
Medium	21 (29.6)	242 (35.1)	0.004
Low	3 (4.2)	118 (17.1)
Prior hospital admission^a	10 (14.1)	32 (4.6)	0.003
Length of hospital stay (days)	1 (1–62)	2 (1–38)	0.257
Previous MDRO colonization^c	26 (36.6)	158 (22.9)	0.012

Values are shown as mean (P5–P95) or n (%)
^aDuring the previous 3 months prior to study recruitment
^bAccording to local guides [24]
^cThe resident has a history of MDRO carriage/infection (past year). MDROs included methicillin-resistant Staphylococcus aureus, imipenem-resistant Acinetobacter baumannii, vancomycin-resistant Enterococcus, multidrug-resistant Pseudomonas aeruginosa and carbapenemase-producing Enterobacterales

ISSN: 2047-2994