Table 3: Multivariable quantile regression models predicting referral intervals (in days) by emergency department status at initial presentation
VariableMedian difference (95% CI)
Presentation beginning in the ED
(Intercept)19.00(14.32 to 23.68)
Abdominal distension
    Yes-7.00(-13.16 to -0.84)
    No(reference)
Presentation beginning elsewhere
(Intercept)68.96(59.03 to 78.89)
Comorbidities
    High/very high-16.96(-27.53 to -6.39)
(Resource utilization band)
    Moderate and lower(reference)
Abdominal distension
    Yes-28.92(-39.95 to -17.88)
    No(reference)

Note: CI = confidence interval, ER = emergency department.