Research Topics
| G A NicholsSummaryAffiliation: Kaiser Permanente Country: USA Publications
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Publications
Hospital use and medical care costs up to 5 years after triglyceride lowering among patients with severe hypertriglyceridemiaGregory A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Avenue, Portland, OR 97227 1098, USA
J Clin Lipidol 6:443-9. 2012..Severe hypertriglyceridemia is associated with resource-intensive conditions such as cardiovascular disease, diabetes, and pancreatitis. Whether triglyceride (TG) reduction reduces annual medical costs has not been studied...
Construction of a multisite DataLink using electronic health records for the identification, surveillance, prevention, and management of diabetes mellitus: the SUPREME-DM projectGregory A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Ave, Portland, OR 97227, USA
Prev Chronic Dis 9:E110. 2012....
Glycemic response and attainment of A1C goals following newly initiated insulin therapy for type 2 diabetesGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Diabetes Care 35:495-7. 2012..To identify the characteristics associated with glycemic response to newly initiated insulin therapy...
Frequency of obtaining national cholesterol education program adult treatment panel III goals for all major serum lipoproteins after initiation of lipid altering therapyGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Am J Cardiol 104:1689-94. 2009..About half the patients starting statins could be candidates for additional therapy targeting non-LDL cholesterol lipid fractions...
Validating the Framingham Offspring Study equations for predicting incident diabetes mellitusGregory A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Ave, Portland, OR 97227 1098, USA
Am J Manag Care 14:574-80. 2008..Investigators from the Framingham Offspring Study (FOS) recently proposed a new simple point score for estimating 8-year diabetes mellitus (DM) risk...
The incidence of heart failure among nondiabetic patients with and without impaired fasting glucoseGregory A Nichols
Kaiser Permanente, Center for Health Research, Portland, OR 97227 1098, USA
J Diabetes Complications 23:224-8. 2009..The purpose of this study was to elucidate the relationship between fasting plasma glucose (FPG), development of diabetes, and incident heart failure (HF) in a large, community sample of nondiabetic subjects...
Medical care costs one year after identification of hyperglycemia below the threshold for diabetesGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon 97227 1098, USA
Med Care 46:287-92. 2008..To estimate the resource utilization and medical costs of patients with impaired fasting glucose (IFG), impaired glucose tolerance (IGT), or both, in a real-world clinical setting...
Does statin therapy initiation increase the risk for myopathy? An observational study of 32,225 diabetic and nondiabetic patientsGregory A Nichols
Kaiser Permanente, Center for Health Research, Portland, Oregon 97227 1098, USA
Clin Ther 29:1761-70. 2007..Estimates of myopathy rates in the literature are based on adverse events reported in clinical trials, which may not be representative of the clinical practice setting...
Intensity of lipid-lowering therapy and low-density lipoprotein cholesterol goal attainment among the elderly before and after the 2004 National Cholesterol Education Program Adult Treatment Panel III updateGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, OR 97227 1098, USA
Am Heart J 154:554-60. 2007..Our objectives were to compare the proportion of elderly patients receiving intensive or minimal-guideline lipid-lowering therapy and the proportions meeting low-density lipoprotein cholesterol (LDL-C) goals before and after the update...
Delay of insulin addition to oral combination therapy despite inadequate glycemic control: delay of insulin therapyGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, OR 97227 1098, USA
J Gen Intern Med 22:453-8. 2007..Patients and providers may be reluctant to escalate to insulin therapy despite inadequate glycemic control...
Progression from newly acquired impaired fasting glusose to type 2 diabetesGregory A Nichols
Center for Health Research, 3800 N Interstate Avenue, Portland, OR 97227 1098, USA
Diabetes Care 30:228-33. 2007..We sought to estimate the rate of progression from newly acquired (incident) impaired fasting glucose (IFG) to diabetes under the old and new IFG criteria and to identify predictors of progression to diabetes...
Weight changes following the initiation of new anti-hyperglycaemic therapiesG A Nichols
Kaiser Permanente Center for Health Research, Portland, OR, USA
Diabetes Obes Metab 9:96-102. 2007....
Complications of dysglycemia and medical costs associated with nondiabetic hyperglycemiaGregory A Nichols
Center for Health Research, Kaiser Permanente, Portland, OR 97227 1098, USA
Am J Manag Care 14:791-8. 2008..To estimate the prevalence of complications associated with diabetes in patients with hyperglycemia below the threshold for diabetes, and to evaluate the associated medical costs...
Independent contribution of diabetes to increased prevalence and incidence of atrial fibrillationGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Diabetes Care 32:1851-6. 2009..We sought to compare the prevalence and incidence of atrial fibrillation in age- and sex-matched patients with and without type 2 diabetes...
Successes and challenges of insulin therapy for type 2 diabetes in a managed-care settingGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, OR 97227 1098, USA
Curr Med Res Opin 26:9-15. 2010....
Medical care costs associated with progression of diabetic nephropathyGregory A Nichols
Kaiser Permanente Center forHealth Research, Portland, Oregon, USA
Diabetes Care 34:2374-8. 2011..To estimate the direct medical costs of hypertensive patients with type 2 diabetes by the level of proteinuria and to evaluate the differences between patients whose nephropathy did and did not progress...
Change in high-density lipoprotein cholesterol and risk of subsequent hospitalization for coronary artery disease or stroke among patients with type 2 diabetes mellitusGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Am J Cardiol 108:1124-8. 2011..In conclusion, our results add to the growing body of evidence that increasing the HDL cholesterol levels might be an important strategy for CVD risk reduction. The prevention of HDL cholesterol decreases could be equally important...
Patient characteristics and medical care costs associated with hypertriglyceridemiaGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Am J Cardiol 107:225-9. 2011..In conclusion, severe hypertriglyceridemia was associated with 33% to 38% greater medical costs per annum, independent of resource-intensive conditions such as cardiovascular disease, heart failure, hypertension, and diabetes...
Metabolic syndrome components are associated with future medical costs independent of cardiovascular hospitalization and incident diabetesGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Metab Syndr Relat Disord 9:127-33. 2011..Furthermore, the independent cost contribution of each component alone and in combination with other components is unknown...
Initial nonadherence, primary failure and therapeutic success of metformin monotherapy in clinical practiceGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Curr Med Res Opin 26:2127-35. 2010..To document the extent to which drug naïve patients with diabetes continued newly initiated metformin monotherapy, and who subsequently experienced primary failure or therapeutic success...
Diabetes incidence for all possible combinations of metabolic syndrome componentsGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, OR 97227 1098, USA
Diabetes Res Clin Pract 90:115-21. 2010..Because metabolic syndrome (MetS) is defined as any three of five criteria, not all persons with MetS have the same risk factors. Whether the combinations of criteria confer equal diabetes risk is unknown...
Comparison of evidence-based versus non-evidence-based pharmacotherapy on the risk of cardiovascular hospitalization and all-cause mortality among patients with established cardiovascular diseaseGregory A Nichols
Kaiser Permanente, Center for Health Research, Portland, Oregon, USA
Am J Cardiol 105:786-91. 2010..92, 95% CI 0.83 to 1.01, p = 0.067). In conclusion, treatment according to current guidelines was significantly associated with reduced mortality but not the risk of secondary hospitalizations...
Medical care costs among patients with established cardiovascular diseaseGregory A Nichols
Center for Health Research, Kaiser Permanente, Portland, OR 97227 1098, USA
Am J Manag Care 16:e86-e93. 2010..To estimate direct medical costs among patients with established cardiovascular disease (CVD)...
The association between fibrate use, change in high-density lipoprotein cholesterol, and the risk of cardiovascular disease: a retrospective chart review involving up to 8 years of follow-upGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon 97227 1098, USA
Clin Ther 28:243-50. 2006..However, whether fibrates provide a CVD risk reduction independent of changes in the traditional lipoprotein fractions and other known CVD risk factors is not clear...
Treatment escalation and rise in HbA1c following successful initial metformin therapyGregory A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Avenue, Portland, OR 97227 1098, USA
Diabetes Care 29:504-9. 2006..To describe secondary failure of initial metformin therapy in patients who achieved initial HbA(1c) (A1C) <8% and to identify predictors of failure...
Normal fasting plasma glucose and risk of type 2 diabetes diagnosisGregory A Nichols
Center for Health Research, Kaiser Permanente Northwest, Portland, OR 97227 1098, USA
Am J Med 121:519-24. 2008..The study compares the risk of incident diabetes associated with fasting plasma glucose levels in the normal range, controlling for other risk factors...
Cardiovascular disease, heart failure, chronic kidney disease and depression independently increase the risk of incident diabetesG A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Avenue, Portland, OR, USA
Diabetologia 54:523-6. 2011..However, these conditions are often present prior to diabetes diagnosis. We sought to determine whether they increase the risk of developing diabetes independent of other risk factors...
Higher medical care costs accompany impaired fasting glucoseGregory A Nichols
Kaiser PermanenteCenter for Health Research, 3800 N Interstate Ave, Portland, Oregon 97227 1098, USA
Diabetes Care 28:2223-9. 2005....
The incidence of congestive heart failure associated with antidiabetic therapiesGregory A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Avenue, Portland, OR 97227 1098, USA
Diabetes Metab Res Rev 21:51-7. 2005..Our objectives were to estimate the CHF risk associated with specific therapies for diabetes and to determine the differences in incidence rates of CHF associated with adding various antidiabetic agents...
The impact of cardiovascular disease on medical care costs in subjects with and without type 2 diabetesGregory A Nichols
Center for Health Research, Portland, Oregon 97227 1110, USA
Diabetes Care 25:482-6. 2002..We examined whether cardiovascular disease (CVD) affects medical care costs differently in subjects with and without diabetes and explored the impact of CVD on costs across the dimensions of age and diabetes duration...
Unadjusted and adjusted prevalence of diagnosed depression in type 2 diabetesGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon 97227 1098, USA
Diabetes Care 26:744-9. 2003..To estimate the prevalence of diagnosed depression in a large population of individuals with type 2 diabetes, compared to a matched control group, and to estimate the extent of depression that is independently associated with diabetes...
Functional status before and after diagnosis of Type 2 diabetesG A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Avenue, Portland, OR 97227 1110, USA
Diabet Med 21:793-7. 2004..We examined functional health status prior to the diagnosis of Type 2 diabetes, and measured the effect on functional health status of receiving the diagnosis...
The incidence of congestive heart failure in type 2 diabetes: an updateGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon 97227 1098, USA
Diabetes Care 27:1879-84. 2004....
Type 2 diabetes: incremental medical care costs during the first 8 years after diagnosisJ B Brown
Kaiser Permanente Center for Health Research, Portland, Oregon 97227 1098, USA
Diabetes Care 22:1116-24. 1999..To describe and analyze the time course of medical care costs caused by type 2 diabetes, from the time of diagnosis through the first 8 postdiagnostic years...
Predictors of glycemic control in insulin-using adults with type 2 diabetesG A Nichols
Center for Health Research, Kaiser Permanente Northwest Division, Portland, Oregon 97227 1098, USA
Diabetes Care 23:273-7. 2000..To determine the characteristics that influence glycemic control among insulin-using adults with type 2 diabetes...
Type 2 diabetes: incremental medical care costs during the 8 years preceding diagnosisG A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Diabetes Care 23:1654-9. 2000..To describe and analyze medical care costs for the 8 years preceding a diagnosis of type 2 diabetes...
Congestive heart failure in type 2 diabetes: prevalence, incidence, and risk factorsG A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Ave, Portland, OR 97227 1098, USA
Diabetes Care 24:1614-9. 2001..To estimate the prevalence and incidence of congestive heart failure (CHF) in populations with and without type 2 diabetes and to identify risk factors for diabetes-associated CHF...
Achieving further glycemic control in type 2 diabetes mellitusG A Nichols
Kaiser Permanente Center for Health Research, 3800 N Interstate Ave, Portland, OR 97227, USA
West J Med 173:175-9. 2000..To identify patients with type 2 diabetes mellitus who were in poor glycemic control and therapeutic adjustments that might improve control...
Case-control study of 10 years of comprehensive diabetes careJ B Brown
Center for Health Research, Portland, OR 97227, USA
West J Med 172:85-90. 2000..To describe the long-term clinical impact of a comprehensive management program instituted throughout a health system for members with diabetes mellitus...
Health care costs associated with escalation of drug treatment in type 2 diabetes mellitusJ B Brown
Kaiser Permanente Northwest Center for Health Research KPCHR, Portland, OR, USA
Am J Health Syst Pharm 58:151-7. 2001..The total cost of treating patients with type 2 diabetes mellitus at an HMO increased as antidiabetic therapies escalated...
Contemporary analysis of secondary failure of successful sulfonylurea therapyGregory A Nichols
Kaiser Permanente Center for Health Research, Portland, Oregon 97227 1098, USA
Endocr Pract 13:37-44. 2007..To revise older estimates of secondary failure that may no longer describe the contemporary pattern of sulfonylurea (SU) monotherapy and to identify predictors of such failure...
Impact of comorbidities on mortality in managed care patients with CKDChristina M Gullion
Kaiser Permanente Center for Health Research, Portland, OR 97227-1110, USA
Am J Kidney Dis 48:212-20. 2006..The relative impact of these comorbidities was greatest among younger (<60 years) patients with CKD, and their relative effect diminished with age...
Effects of weight gain on medical care costsP J Elmer
Center for Health Research, Kaiser Permanente Northwest, Portland, OR 97227-1110, USA
Int J Obes Relat Metab Disord 28:1365-73. 2004..The prevention of large weight gains holds promise for significantly reducing future medical care costs. Future studies should examine the causes of rapid weight gain and evaluate approaches to prevent and reverse such weight gain...
Secondary failure of metformin monotherapy in clinical practiceJonathan B Brown
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Diabetes Care 33:501-6. 2010..Our findings support the current treatment algorithm for hyperglycemia management that recommends metformin initiation when diabetes is first diagnosed...
Controlled trials of CQI and academic detailing to implement a clinical practice guideline for depressionJ B Brown
Kaiser Permanente Center for Health Research, Portland, Oregon, USA
Jt Comm J Qual Improv 26:39-54. 2000....
Treated prevalence, incidence, and pharmacotherapy of child and adolescent mood disorders in an HMOL L DeBar
Kaiser Permanente Center for Health Research, Portland, Oregon 97227 1110, USA
Ment Health Serv Res 3:73-89. 2001..S. Department of Health and Human Services, 1993]), that is, primarily with SSRI medications...
Use of oral antithrombotic agents among health maintenance organization members with atherosclerotic cardiovascular diseaseJonathan B Brown
Center for Health Research, 3800 N Interstate Ave, Portland, OR 97227 1110, USA
Arch Intern Med 162:193-9. 2002..Although antithrombotic agents are often prescribed at hospital discharge after CVD-related events, much less is known about the ongoing use of such agents...
Effect of a patient panel-support tool on care deliveryAdrianne C Feldstein
Center for Health Research, Kaiser Permanente Northwest, Portland, OR 97227, USA
Am J Manag Care 16:e256-66. 2010..To evaluate the effect of a patient panel-support tool (PST) on care delivery for diabetes mellitus (DM) and cardiovascular disease (CVD)...
The burden of treatment failure in type 2 diabetesJonathan B Brown
Kaiser Permanente Center for Health Research, Portland, OR, USA
Diabetes Care 27:1535-40. 2004..In type 2 diabetes, therapies to maintain blood glucose control usually fail after several years. We estimated the glycemic burden that accumulates from treatment failure and describe the time course and predictors of failure...
Practice patterns in patients at risk for glucocorticoid-induced osteoporosisAdrianne C Feldstein
Center for Health Research, Kaiser Permanente Northwest, 3800 N Interstate Avenue, Portland, OR 97227 1110, USA
Osteoporos Int 16:2168-74. 2005..Future research should focus on understanding barriers to GIOP identification and facilitating osteoporosis management...
Weight change and glycemic control after diagnosis of type 2 diabetesAdrianne C Feldstein
Center for Health Research, Kaiser Permanente Northwest, Portland, OR 97227, USA
J Gen Intern Med 23:1339-45. 2008..Limited community-based data describe weight change after diabetes diagnosis...
Weight change in diabetes and glycemic and blood pressure controlAdrianne C Feldstein
1Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon, USA
Diabetes Care 31:1960-5. 2008..Weight loss in type 2 diabetes is undisputedly important, and data from community settings are limited. We evaluated weight change and resulting glycemic and blood pressure control in type 2 diabetic patients at an HMO...
Older women with fractures: patients falling through the cracks of guideline-recommended osteoporosis screening and treatmentAdrianne C Feldstein
Kaiser Permanente Center for Health Research, 3800 North Interstate Avenue, Portland, OR 97227 1110, USA
J Bone Joint Surg Am 85:2294-302. 2003..Our purpose was to aid in the design of more effective future interventions...
Effectiveness of bisphosphonate therapy in a community settingAdrianne C Feldstein
Center for Health Research, Kaiser Permanente Northwest, Portland, OR 97227, USA
Bone 44:153-9. 2009..Clinical trials have shown the effectiveness of bisphosphonates, the most commonly prescribed treatments, in reducing fracture risk. The population-based effectiveness of bisphosphonates in clinical practice is uncertain...
Lower visual acuity predicts worse utility values among patients with type 2 diabetesDavid H Smith
Center for Health Research, Kaiser Permanente Northwest, 3800 N Interstate Ave, Portland, OR 97227, USA
Qual Life Res 17:1277-84. 2008..We estimated the quality of life impact of vision loss in a community-based population with diabetes...
Slow response to loss of glycemic control in type 2 diabetes mellitusJonathan B Brown
Kaiser Permanente Center for Health Research, Portland, Ore 97227 1110, USA
Am J Manag Care 9:213-7. 2003..To achieve glycemic control in type 2 diabetes mellitus, the American Diabetes Association (ADA) recommends intensification of glucose-lowering therapy when the glycosylated hemoglobin (HbA1c) level exceeds 8.0%...
Following depression in primary care: do family practice physicians ask about depression at different rates than internal medicine physicians?G A Nichols
Kaiser Permanente Center for Health Research, Portland, Ore 97227 1098, USA
Arch Fam Med 9:478-82. 2000..To determine whether the chronically or recurrently depressed patients of family practice and internal medicine physicians differed in the proportion reporting that their primary care physician asked them about depression symptoms...
Understanding changes in primary care clinicians' satisfaction from depression care activities during adoption of selective serotonin reuptake inhibitorsDiana Shye
Kaiser Permanente, Center for Health Research, Portland, OR, USA
Am J Manag Care 8:963-74. 2002..To describe how primary care clinicians' perceptions about depression care as a clinical activity changed during the adoption of selective serotonin reuptake inhibitors (SSRIs) in their health maintenance organization (HMO)...
Response to Olivarius and Siersma: weight change or change in weight trend. Differences in analytical approaches (and differences in study samples)Gregory A Nichols
Diabetes Obes Metab 10:183-4. 2008
Longitudinal follow-up and outcomes among a population with chronic kidney disease in a large managed care organizationDouglas S Keith
Division of Nephrology and Hypertension, Oregon Health and Science University, USA
Arch Intern Med 164:659-63. 2004..CONCLUSION: Our data suggest that efforts to reduce mortality in this population should be focused on treatment and prevention of coronary artery disease, congestive heart failure, diabetes mellitus, and anemia...
Risk-factor clustering and cardiovascular disease risk in hypertensive patientsDerek Weycker
Policy Analysis, Inc, Brookline, Massachusetts 02445, USA
Am J Hypertens 20:599-607. 2007..Patients with hypertension often have other major risk factors for cardiovascular disease (CVD). Little is known, however, about the extent of risk-factor clustering in these patients and its importance in CVD risk and medical-care costs...
Research Grants
- Characteristics and Costs of Impaired Fasting GlucoseGregory Nichols; Fiscal Year: 2005..Finally, we will calculate and compare the costs of medical care for patients in each FPG stage, and estimate multivariate models to identify factors that contribute to medical costs in each stage. ..
