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Fig. 4 | Journal of Intensive Care

Fig. 4

From: Impact of the academic calendar cycle on survival outcome of injured patients: a retrospective cohort study at a community emergency department in Japan

Fig. 4

Prehospital time in injured patients: first versus second to fourth academic quartilea. Box plots of time from emergency call to ED arrival in (a) all injured patients, b patients who presented during business hours, and c patients who presented during off-hoursb. The solid line within the box represents the median, the box represents the 25th and 75th percentiles, and the whiskers represent the lower and upper extremes. The p value was derived from the Mann–Whitney U test. aIn Japan, the academic cycle typically begins on 1 April each year. The first academic quartile therefore corresponds to April to June, and the second to fourth quartile corresponds to July to March. bOff-hours are defined as the period from 6:01 pm to 8:00 am on weekdays plus the entire weekend. ED: emergency department

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