Table 2. Risk factors for MDRO colonisation in children, collected at hospital admission, AKK Hamburg, Germany, September 2018–May 2019 (n = 3,964).

Risk factor	MDRO negative n = 3,685		MDRO positive n = 166		Missing n = 113	Total n = 3,964
	n	%	n	%	n	n	%
History of MRGN
No	3,642	98.8	139	83.7	112	3,893	98.2
Yes	43	1.2	27	16.3	1	71	1.8
Living in a care facility
No	3,661	99.3	161	97.0	110	3,932	99.2
Yes	23	0.6	5	3.0	3	31	0.8
Missing information	1	0.0	0	0.0	0	1	0.0
Refugee status within the previous 12 months
No	3,656	99.2	161	97.0	113	3,930	99.1
Yes	25	0.7	2	1.2	0	27	0.7
Missing information	4	0.1	3	1.8	0	7	0.2
Chronic condition requiring permanent care
No	3,512	95.3	136	81.9	97	3,745	94.5
Yes	170	4.6	29	17.5	16	215	5.4
Missing information	3	0.1	1	0.6	0	4	0.1
Antibiotic therapy within the previous 6 months
No	2,961	80.4	104	62.7	89	3,154	79.6
Yes	590	16.0	51	30.7	19	660	16.6
Missing information	134	3.6	11	6.6	5	150	3.8

AKK: Altona Children’s Hospital; MDRO: multidrug-resistant organisms; MRGN: multidrug-resistant Gram-negative bacteria.

Percentages may not add up to 100 because of rounding.