Clinically meaningful and lasting HbA1c improvement rarely occurs after 5 years of type 1 diabetes: an argument for early, targeted and aggressive intervention following diagnosis

AIMS/HYPOTHESIS: 'tracking' occurs in individuals with type 1 diabetes, how long after diagnosis does tracking take to stabilise, and whether there is an effect of sex and age at diagnosis on tracking. METHODS: levels over time with random effects on general practices (primary care units) and individuals within practices. RESULTS: . CONCLUSIONS/INTERPRETATION: tracking level for the next 10 years.