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Percentage of (a) infections and (b) median length of hospital stay per glucose quartile: first quartile 5.2–7.4 mmol/l, second quartile 7.5–8.2 mmol/l, third quartile 8.3–9.2 mmol/l, and fourth quartile 9.3–17.2 mmol/l. The error bars in panel b represent the interquartile range.
