Authors:
McKnight JA, Wild SH, Lamb MJE, Cooper MN, Jones TW, Davis EA, et al.
Authors notes:
Diabet Med. 2015;32(8):1036-50.
Keywords:
glycaemic control, Type 1 diabetes, national registries, diabetes registries, countries, Australasia, Europe, North America, healthcare systems, Diabetes Control and Complications Trial, collaborate, collaboration, registries, international, HbA1c, Biostatistics
Abstract:
Improving glycaemic control in people with Type 1 diabetes is known to reduce complications.
Our aim was to compare glycaemic control among people with Type 1 diabetes using data gathered in regional or national registries.
Methods: Data were obtained for children and/or adults with Type 1 diabetes from the following countries (or regions): Western Australia, Austria, Denmark, England, Champagne-Ardenne (France), Germany, Epirus, Thessaly and Thessaloniki (Greece), Galway (Ireland), several Italian regions, Latvia, Rotterdam (The Netherlands), Otago (New Zealand), Norway, Northern Ireland, Scotland, Sweden, Volyn (Ukraine), USA and Wales) from population or clinic-based registries.
The sample size with available data varied from 355 to 173 880.
Proportions with HbA1c < 58 mmol/mol (< 7.5%) and ≥ 75 mmol/mol (≥ 9.0%) were compared by age and sex.
Results: Data were available for 324 501 people.
The proportions with HbA1c 58 mmol/mol (< 7.5%) varied from 15.7% to 46.4% among 44 058 people aged < 15 years, from 8.9% to 49.5% among 50 766 people aged 15-24 years and from 20.5% to 53.6% among 229 677 people aged ≥ 25 years.
Sex differences in glycaemic control were small.