Table 4.

Risk factors identified in Klebsiella pneumoniae isolates.

Variables	ST307 (n = 6)	Other ST (n = 5)	p Value
Sex			>0.99
Female n (%)	2 (33)	2 (40)
Male n (%)	4 (67)	3 (60)
Age, years, median (IQR)	66 (63, 75)	63 (56, 66)	0.64
Risk factors
Hospitalized ≥2 d in the prior 90 d	5 (83)	3 (60)
Antibiotic treatment in the prior 90 d	4 (67)	2(40)
Wound care at home	2 (33)	1 (20)
Outpatient chemotherapy	2 (33)	—
History of immunosuppressive therapy	2 (33)	—
Hemodialysis in the prior 90 d	—	—
At least 1 risk factor	6 (100)	3 (60)	0.18
No known risk factors	—	2 (40)	0.06
ESBL carrier	6 (100)	2 (40)	0.06

Abbreviations: d: days; ESBL: extended-spectrum β-lactamase, ST: sequence typing.