Primary research question
wheeze, asthma, vomiting
REGRESSION, ASTHMA
To investigate the effect of the STARWAVe factors on risk assessments and prescribing decisions, three mixed-effects regression models were built, with random intercept and slope by participant:
continuous risk assessments (cast on a sliding scale) were regressed on patient age (continuous), duration (continuous), vomiting, asthma, recession, temperature, and wheeze (0 = absent and 1 = present; linear model);risk-category selections (0 = level 1, 1 = level 2, and 2 = level 3) were regressed on the same (ordinal logistic model); andprescribing decisions were dichotomised (0 = no/delayed prescription and 1 = immediate prescription) in line with national guidelines (which treat ‘no prescription’ and ‘delayed prescription’ interchangeably)All models were repeated with age and duration treated as binary, in keeping with the STARWAVe CPR (age = 1 if <2 years, duration = 1 if ≤3 days, otherwise 0).