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Table 1 Descriptive characteristics of variables used as statistical determinants of levofloxacin resistance in Escherichia coli in Japan, 2015–2016

From: Fluoroquinolone consumption and Escherichia coli resistance in Japan: an ecological study

Variable Median (IQR)
2015 2016
Proportion of resistance (%) 37.4 (33.9–42.0) 38.3 (35.5–42.6)
Fluoroquinolone consumption (DID) 2.8 (2.4–3.2) 2.8 (2.4–3.3)
Number of physicians per 100,000 individuals 242.4 (217.0–279.8) 242.4 (217.0–279.8)
Number of nurses per 100,000 individuals 965.5 (817.0–1104.2) 965.5 (817.0–1104.2)
Number of hospitals per 100,000 individuals 7.1 (5.7–10.0) 7.2 (5.7–10.0)
Number of clinics per 100,000 individuals 81.1 (72.8–90.2) 81.3 (90.7–72.7)
Number of nursing homes per 100,000 individuals 7.3 (6.2–8.3) 6.9 (5.8–8.1)
Number of medical facilities included in surveillance 21.0 (15.0–37.0) 26.0 (17.0–40.0)
Proportion of medical facilities with 500 or more beds (%) 20.0 (15.8–27.7) 17.9 (12.5–25.0)
Proportion of elderly in the population (%) 28.7 (26.8–30.1) 28.7 (26.8–30.1)
Average length of hospital stay (days) 32.0 (29.2–34.1) 31.8 (28.8–33.8)
  1. DID Defined daily dose per 1000 inhabitants per day, IQR Interquartile range