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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%)