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Table 1 Age on the day of the first ESBL-EC positive rectal sample and gender characteristics of the residents for ESBL-ST131 and ESBL-non-ST131, per analysis

From: Duration of rectal colonization with extended-spectrum beta-lactamase-producing Escherichia coli: results of an open, dynamic cohort study in Dutch nursing home residents (2013–2019)

MLST group

All residents with at least one positive ESBL-EC culture (n = 112)

Residents who were ESBL positive in their first prevalence survey (n = 55)

Residents who acquired ESBL-EC during the study (n = 57)

ESBL-ST131 (n = 66)

ESBL-non-ST131 (n = 46)

ESBL-ST131 (n = 33)

ESBL-non-ST131 (n = 22)

ESBL-ST131 (n = 33)

ESBL-non-ST131 (n = 24)

Age in years, median (IQR)

82 (76–88)

82 (74 –87)

83 (74–88)

84 (76–87)

82 (77.5–88.5)

81 (73.0–86.5)

Female gender, n (%)

37 (56.0%)

26 (56.5%)

19 (57.6%)

11 (50.0%)

18 (54.5%)

15 (62.5%)