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  • Title: A retrospective database study of insulin initiation in patients with Type 2 diabetes in UK primary care.
    Author: Blak BT, Smith HT, Hards M, Maguire A, Gimeno V.
    Journal: Diabet Med; 2012 Aug; 29(8):e191-8. PubMed ID: 22507537.
    Abstract:
    AIMS: This study characterized UK primary care patients with Type 2 diabetes who initiated insulin treatment, and described the initial insulin regimens used, overall metabolic changes and health-care resource usage. METHODS: A retrospective cohort study was performed using quality-checked patient data from The Health Improvement Network database. Eligible patients who initiated insulin for the first time between 2004 and 2006 were grouped into four cohorts according to the type of insulin regimen initiated. Data on patient characteristics, metabolic and clinical outcomes and health-care resource use were collected at baseline and during 6 months of follow-up. RESULTS: In total, 4045 eligible adults [2269 male, 1776 female; mean age 62.6 ± 13.3 years; mean baseline HbA(1c) 82 ± 22 mmol/mol (9.6% ± 2.0%)] initiated insulin. Approximately half (52.4%) initiated insulin as basal insulin only, 41.6% as premixed only, 4.0% as basal-bolus and 2.1% as prandial insulin only. Among patients with ≥ 180 days follow-up (n=3815), the initial insulin regimen was not changed during follow-up in 75.1% of patients, while 13.7% discontinued, 7.0% switched and 4.7% intensified insulin therapy. The mean change in HbA(1c) was -14 mmol/mol (-1.3%, n=2881), with 17.3% of patients achieving an HbA(1c) of <53 mmol/mol (7%, n=3024). The mean weight change was +0.9 kg (n=2345). CONCLUSIONS: Basal and premixed insulin were the most common types of insulin initiated and in most patients no changes were made to the initial regimen over 6 months. However, few patients achieved glycemic control targets.
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