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Table 2 Logistic regression models for hospital mortality in injured patients: first academic quartile (April–June) versus second to fourth quartile (July–March)

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

 

Patients, n

Univariable analysis

Multivariable analysisb

Total

Dead

Mortality rate (%)

OR (95% CI)

p

Adjusted OR (95% CI)

p

Full cohort (N = 20,945)

 April–Junea (reference)

5282

215

4.1

0.931 (0.796–1.088)

0.368

0.980 (0.748–1.284)

0.885

 July–March

15,663

683

4.4

    
  1. The reference set was the group of patients admitted to the emergency department during the first academic quartile (in Japan, April–June)
  2. CI confidence interval, OR odds ratio
  3. aIn Japan, the academic cycle typically begins on 1 April each year. The first academic quartile therefore corresponds to April to June
  4. bAdjustment for the potential confounders of age, sex, injury severity score, Glasgow coma scale score, systolic blood pressure, trauma etiology (blunt or penetrating), and admission phase (2002–2005, 2006–2009, 2010–2013, and 2014–2018)