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Dive into the research topics where Mark Aagren is active.

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Featured researches published by Mark Aagren.


Diabetes Care | 2011

Evidence Linking Hypoglycemic Events to an Increased Risk of Acute Cardiovascular Events in Patients With Type 2 Diabetes

Stephen S. Johnston; Christopher Conner; Mark Aagren; Jonathan Bouchard; Jason Brett

OBJECTIVE This retrospective study examined the association between ICD-9-CM–coded outpatient hypoglycemic events (HEs) and acute cardiovascular events (ACVEs), i.e., acute myocardial infarction, coronary artery bypass grafting, revascularization, percutaneous coronary intervention, and incident unstable angina, in patients with type 2 diabetes. RESEARCH DESIGN AND METHODS Data were derived from healthcare claims for individuals with employer-sponsored primary or Medicare supplemental insurance. A baseline period (30 September 2006 to 30 September 2007) was used to identify eligible patients and collect information on their clinical and demographic characteristics. An evaluation period (1 October 2007 to 30 September 2008) was used to identify HEs and ACVEs. Patients aged ≥18 years with type 2 diabetes were selected for analysis by a modified Healthcare Effectiveness Data and Information Set algorithm. Data were analyzed with multiple logistic regression and backward stepwise selection (maximum P = 0.01) with adjustment for important confounding variables, including age, sex, geography, insurance type, comorbidity scores, cardiovascular risk factors, diabetes complications, total baseline medical expenditures, and prior ACVEs. RESULTS Of the 860,845 patients in the analysis set, 27,065 (3.1%) had ICD-9-CM–coded HEs during the evaluation period. The main model retained 17 significant independent variables. Patients with HEs had 79% higher regression-adjusted odds (HE odds ratio [OR] 1.79; 95% CI 1.69–1.89) of ACVEs than patients without HEs; results in patients aged ≥65 years were similar to those for the entire population (HE OR 1.78, 95% CI 1.65–1.92). CONCLUSIONS ICD-9-CM–coded HEs were independently associated with an increased risk of ACVEs. Further studies of the relationship between hypoglycemia and the risk of ACVEs are warranted.


Diabetes, Obesity and Metabolism | 2012

Association between hypoglycaemic events and fall‐related fractures in Medicare‐covered patients with type 2 diabetes

Stephen S. Johnston; Christopher Conner; Mark Aagren; K. Ruiz; Jonathan Bouchard

Aims: This retrospective observational study examined the association between International Classification of Diseases, Ninth Revision, Clinical Modification (ICD‐9‐CM)‐coded outpatient hypoglycaemic events and fall‐related fractures in Medicare‐covered patients with type 2 diabetes.


Current Medical Research and Opinion | 2005

Analytic review of bimatoprost, latanoprost and travoprost in primary open angle glaucoma

Stefan Holmstrom; Patricia Buchholz; John G. Walt; Jannie Wickstrøm; Mark Aagren

ABSTRACT Objective: The objective of this review was to evaluate different measures of efficacy of the intraocular pressure (IOP) lowering lipid class agents bimatoprost, latanoprost and travoprost in the treatment of primary open angle glaucoma. Study arms of timolol in trials including the above mentioned lipid class drugs were also included. Methods: MEDLINE and EMBASE were searched for randomized clinical trials including one or more of the lipid class drugs bimatoprost, latanoprost and travoprost. The study results were pooled, and the simple, weighted IOP-lowering efficacy was compared among the lipid class drugs and timolol, where data were available. Efficacy parameters were reviewed, including mean reduction of IOP and percentage of patients achieving different levels of IOP. Results: 161 articles were identified of which 42 were included in the analysis. A total of 9295 patients participated in the included trials. Based on all studies, timolol on average had a weighted mean IOP reduction of 22.2%, while latanoprost, travoprost and bimatoprost had a weighted mean IOP reduction of 26.7%, 28.7% and 30.3%, respectively. Analysis of target achievement to various IOP levels shows that bimatoprost seems more efficacious than latanoprost. The direct comparisons (head-to-head studies) also show that bimatoprost is the most efficacious treatment, however it is not conclusive whether latanoprost or travoprost is better in reducing IOP. Conclusions: This review shows that bimatoprost seems to be the most efficacious treatment in lowering IOP. Head-to-head studies confirm this.


Advances in Therapy | 2010

Assessment of adherence and healthcare costs of insulin device (FlexPen®) versus conventional vial/syringe

O. Baser; Jonathan Bouchard; Tony DeLuzio; Henry J. Henk; Mark Aagren

IntroductionDiabetes is difficult to manage and treatment involves significant lifestyle adjustments. Unlike the traditional method of insulin administration via the vial and syringe method, insulin pens might be perceived as less cumbersome and have potential to significantly increase patient adherence.MethodsUsing “real world” data, we examined the differences in adherence and costs between diabetic patients using an insulin FlexPen® (Novo Nordisk Inc, Princeton, NJ, USA) and those using traditional vial and syringe administration. Using a retrospective analysis of health insurance claims data between the years 2003 and 2008, we examined patients in the FlexPen cohort and analog vial cohort. Propensity score matching was used to match these cohorts (n=532 in each) according to baseline characteristics.ResultsAdjusted mean medication possession ratio when switched to FlexPen improved by 22 percentage points versus 13 percentage points when continuing to use vials (P=0.001). Diabetes-related healthcare costs when switched to FlexPen versus continuing on to use vials (


Clinical Therapeutics | 2009

A Comparison of Insulin Use, Glycemic Control, and Health Care Costs With Insulin Detemir and Insulin Glargine in Insulin-Naive Patients With Type 2 Diabetes

Bijan J. Borah; Theodore Darkow; Jonathan Bouchard; Mark Aagren; Felicia Forma; Berhanu Alemayehu

3970 vs.


Current Medical Research and Opinion | 2011

Adherence and persistence to a regimen of basal insulin in a pre-filled pen compared to vial/syringe in insulin-naïve patients with type 2 diabetes

Erin K. Buysman; Christopher Conner; Mark Aagren; Jonathan Bouchard; Fang Liu

4838, respectively, P=0.9368) and total healthcare costs (


Current Medical Research and Opinion | 2010

Cost of diabetes: comparison of disease-attributable and matched cohort cost estimation methods

Ozgur Tunceli; Ron Wade; Tao Gu; Jonathan Bouchard; Mark Aagren; Wenli Luo

13,214 vs.


Pharmacology | 2008

Indirect comparison of once daily insulin detemir and glargine in reducing weight gain and hypoglycaemic episodes when administered in addition to conventional oral anti-diabetic therapy in patients with type-2 diabetes

Walid Fakhoury; Ian Lockhart; R Kotchie; Mark Aagren; Corinne LeReun

13,212, respectively, P=0.9473) were not statistically different.ConclusionWithout significant addition to the cost, insulin administration with FlexPen is associated with an improved adherence among patients who switched from vial-based insulin administration.


Scandinavian Journal of Public Health | 2011

Evaluation of the long-term cost-effectiveness of insulin detemir compared with neutral protamine hagedorn insulin in patients with type 1 diabetes using a basal-bolus regimen in Sweden:

Wj Valentine; Mark Aagren; Mattias Haglund; Åsa Ericsson; Manuela Helena Gschwend

OBJECTIVES The goal of this study was to compare daily insulin use, glycemic control, and health care costs in insulin-naive patients with type 2 diabetes who initiated treatment with either insulin detemir or insulin glargine. METHODS This was a retrospective cohort analysis of health care claims data and laboratory results for adult, insulin-naive patients with type 2 diabetes who were enrolled in a large US managed care organization and initiated basal therapy with insulin detemir or insulin glargine between May 1, 2006, and December 31, 2006. The daily average consumption (DACON) of insulin was calculated as the total number of units dispensed (excluding the last fill) divided by the number of days between the index date and the date of the last fill of the index insulin. Glycemic control was evaluated by comparing mean glycosylated hemoglobin (HbA(1c)) values in the preindex period (the 180 days before the index date) and the follow-up period (the 180 days after the index date). Mean all-cause and diabetes-related health care costs in the preindex and follow-up periods were calculated and compared. RESULTS The analysis included 48 patients initiating therapy with insulin detemir and 258 initiating therapy with insulin glargine. The mean age of the 2 cohorts was approximately 54 years, and most patients in each cohort were male (52.1% and 59.7%, respectively). Few patients in either cohort had a baseline HbA(1c) value <7% (13% and 10%), suggesting poor glycemic control at the time of insulin initiation. After adjustment for confounders (eg, preindex diabetes medication), the DACON of insulin was comparable between cohorts (29.3 and 29.6 U/d; P = NS), as were follow-up HbA(1c) values (8.2% and 7.9%). Insulin detemir and insulin glargine also were associated with comparable mean adjusted all-cause pharmacy costs (


Advances in Therapy | 2008

Evaluating the cost-effectiveness of therapy conversion to insulin detemir in patients with type 2 diabetes in Germany: a modelling study of long-term clinical and cost outcomes

Wj Valentine; Gordon Goodall; Mark Aagren; Steffen Nielsen; Andrew J. Palmer; Katrina Erny-Albrecht

3074 and

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