Infections Caused by Extended-Spectrum β-Lactamase Producing Escherichia Coli in Systemic Lupus Erythematosus Patients: Prevalence, Risk Factors, and Predictive Model

Table 5

Distribution of cumulative risk factors for E. coli infected patients.

Number of risk factors	Number of patients, n (%)
	ESBL (+)	ESBL (-)	Total
0	0 (0)	18 (100)	18
1	3 (12.5)	21 (87.5)	24
2	7 (16.3)	36 (83.7)	43
3	12 (23.1)	40 (76.9)	52
4	17 (45.9)	20 (54.1)	37
5	23 (65.7)	12 (34.3)	35
6	41 (83.7)	8 (16.3)	49
7	49 (80.3)	12 (19.7)	61
8	29 (90.6)	3 (9.4)	32
9	21 (91.3)	2 (8.7)	23
10	7 (100)	0 (0)	7
11	3 (100)	0 (0)	3
Total	212 (55.2)	172 (44.8)	384

ESBL, Extended-Spectrum β-Lactamase.