Table 2

Characteristics of low-acuity and high-acuity PED visits from logistic regression model adjusted for all covariables

CharacteristicsLow-acuity PED visits, n=28 556High acuity PED visits, n=24 533P value*Adjusted OR (95% CI)
Age ≤5 years18 857 (66%)12 910 (53%)<0.001†1.87 (1.81 to 1.94)
Gender: female12 988 (45%)11 213 (46%)0.607†1.00 (0.96 to 1.03)
Week-end visits9412 (33%)7244 (30%)<0.001†1.14 (1.10 to 1.18)
Evening visits (18:00–21:00 hours)7892 (28%)6487 (26%)0.002†1.18 (1.13 to 1.23)
Night visits (22:00–8:00 hours)5319 (19%)3876 (16%)<0.001†1.30 (1.23 to 1.36)
Residency ≤5 km from PED17 871 (63%)12 241 (50%)<0.001†1.27 (1.22 to 1.32)
Site: Lausanne19 490 (68%)12 029 (49%)<0.001†2.22 (2.13 to 2.30)
  • Definition of low-acuity visits: Triage ATS 4 or 5, no laboratory nor imaging tests and no hospital admission

  • *P value for comparison of acuity.

  • †Pearson’s χ2 test.

  • ATS, Australasian Triage Scale; PED, paediatric emergency department.