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1.
J Gen Intern Med ; 23(5): 528-35, 2008 May.
Article in English | MEDLINE | ID: mdl-18335280

ABSTRACT

BACKGROUND: With positive results from diabetes prevention studies, there is interest in convenient ways to incorporate screening for glucose intolerance into routine care and to limit the need for fasting diagnostic tests. OBJECTIVE: The aim of this study is to determine whether random plasma glucose (RPG) could be used to screen for glucose intolerance. DESIGN: This is a cross-sectional study. PARTICIPANTS: The participants of this study include a voluntary sample of 990 adults not known to have diabetes. MEASUREMENTS: RPG was measured, and each subject had a 75-g oral glucose tolerance test several weeks later. Glucose intolerance targets included diabetes, impaired glucose tolerance (IGT), and impaired fasting glucose(110) (IFG(110); fasting glucose, 110-125 mg/dl, and 2 h glucose < 140 mg/dl). Screening performance was measured by area under receiver operating characteristic curves (AROC). RESULTS: Mean age was 48 years, and body mass index (BMI) was 30.4 kg/m(2); 66% were women, and 52% were black; 5.1% had previously unrecognized diabetes, and 24.0% had any "high-risk" glucose intolerance (diabetes or IGT or IFG(110)). The AROC was 0.80 (95% CI 0.74-0.86) for RPG to identify diabetes and 0.72 (0.68-0.75) to identify any glucose intolerance, both highly significant (p < 0.001). Screening performance was generally consistent at different times of the day, regardless of meal status, and across a range of risk factors such as age, BMI, high density lipoprotein cholesterol, triglycerides, and blood pressure. CONCLUSIONS: RPG values should be considered by health care providers to be an opportunistic initial screening test and used to prompt further evaluation of patients at risk of glucose intolerance. Such "serendipitous screening" could help to identify unrecognized diabetes and prediabetes.


Subject(s)
Blood Glucose/physiology , Diabetes Mellitus, Type 2/diagnosis , Glucose Intolerance/diagnosis , Mass Screening/methods , Black or African American , Blood Glucose/analysis , Cross-Sectional Studies , Female , Glucose Tolerance Test/methods , Humans , Male , Middle Aged , White People
2.
Mycoses ; 51(1): 14-20, 2008 Jan.
Article in English | MEDLINE | ID: mdl-18076590

ABSTRACT

A valid and reliable measure that captures onychodystrophy disease severity is important for both clinical and research applications. Three hundred and twenty-two patients at two Veterans Affairs Medical Centers with clinical evidence of onychodystrophy suggesting onychomycosis (at least 25% in a distal subungual pattern) were examined using Naildex parameters. Naildex scores were calculated by a combination of: per cent of each nail infected, area of each nail and number of infected nails. Patients also completed a nail-specific quality of life questionnaire (NailQoL) and nail samples were collected and examined mycologically. Data was analysed for all enrolled patients (n = 322) and patients with mycologically-confirmed onychomycosis (n = 243). Inter-rater reliability was calculated from two examiners who each evaluated 17 patients with mycologically-confirmed onychomycosis. Significant correlations (P < 0.01) between Naildex and NailQoL as well as proxy measures (duration of infection) indicated construct validity of the instrument for all patients as well as mycologically-confirmed cases. Strong correlation (r = 0.754, P < 0.01, n = 17) indicated high inter-rate reliability. This pilot evaluation suggests that Naildex is a valid and reliable measure of onychomycosis severity.


Subject(s)
Diagnostic Equipment , Onychomycosis/diagnosis , Aged , Aged, 80 and over , Arthrodermataceae/isolation & purification , Female , Humans , Male , Middle Aged , Nails/microbiology , Nails/pathology , Onychomycosis/psychology , Quality of Life , Severity of Illness Index , Surveys and Questionnaires
4.
Int J Dermatol ; 46(12): 1279-86, 2007 Dec.
Article in English | MEDLINE | ID: mdl-18173524

ABSTRACT

BACKGROUND: The disease burden onychomycosis is not trivial. The aim is to develop a quality of life instrument to measure the onychomycosis burden. METHODS: 402 patients with mycologically-confirmed onychomycosis completed a baseline questionnaire of 39 quality of life items (modified Skindex-29 questions and 10 additional nail-specific questions). Internal consistency, reproducibility and responsiveness of the final instrument, NailQoL were measured. RESULTS: 15 items consisting of symptom (3), emotion (10), and functional (2) domains were retained in NailQoL. Symptom and emotion subscales = 0.80-0.92. Administration alpha demonstrated good internal consistency (Cronbach's of the instrument to 46 patients at one month after baseline revealed good reproducibility (ICC 0.88-0.91). Responsiveness was measured in 292 patients at 18 months; statistically significant better NailQoL scores were found in individuals with complete cure (mycological and clinical) (P < 0.01). CONCLUSION: NailQoL represents a new concise, valid, reliable, and responsive instrument for measuring burden of skin disease for patients with onychomycosis.


Subject(s)
Foot Dermatoses/psychology , Hand Dermatoses/psychology , Onychomycosis/psychology , Quality of Life , Surveys and Questionnaires , Aged , Aged, 80 and over , Epidemiologic Studies , Female , Foot Dermatoses/diagnosis , Hand Dermatoses/diagnosis , Humans , Male , Middle Aged , Onychomycosis/diagnosis , Psychometrics , Randomized Controlled Trials as Topic , Reproducibility of Results , Sickness Impact Profile , Statistics, Nonparametric
5.
Am Heart J ; 152(4): 770-6, 2006 Oct.
Article in English | MEDLINE | ID: mdl-16996857

ABSTRACT

BACKGROUND: The CREST trial demonstrated that after successful coronary stent implantation, the 6-month rate of target vessel revascularization (TVR) was similar (15.4% vs 16%, P = .90) for the 2 treatment groups, but restenosis rate was lower (22.0% vs 34.5%, P = .002) in cilostazol-treated patients. We sought to evaluate resource use, cost, and cost-effectiveness of cilostazol in CREST. METHODS: A total of 705 patients were randomized to cilostazol 100 mg twice daily (n = 354) versus placebo (n = 351) for 6 months. Resources included rehospitalizations, medications, and outpatient services. Costs were determined from the Medicare fee schedule. Cilostazol was priced at 1.64 dollars a day. Base-case cost and cost-effectiveness analysis was performed for the entire population using TVR as a measure of effectiveness. Sensitivity analysis was conducted among 526 patients because restenosis data were available only for this patient population. A bootstrap resample approach (5000 samples) was used to obtain confidence intervals for cost differences. RESULTS: For the entire population, costs of rehospitalizations, concomitant medications, outpatient tests, and physician or emergency department visits were lower during follow-up for cilostazol-treated patients. Overall, total 6-month follow-up costs remained 447 dollars lower for cilostazol (4178 dollars vs 4625 dollars), although this difference did not reach significance (95% CI -1458 dollars to 515 dollars). Cilostazol is likely a cost-saving strategy (similar rate of TVR and lower costs). Sensitivity analysis showed that cilostazol is likely a dominant strategy (lower restenosis rate and costs, 85% dominant, 88.9% <1000 dollars per restenosis averted). CONCLUSIONS: Treatment with cilostazol is likely a cost-saving or dominant strategy in patients with successful coronary bare metal stent implantation. Cilostazol may offer a low-cost alternative to restenosis prevention in patients who do not receive drug-eluting stents.


Subject(s)
Coronary Restenosis/prevention & control , Coronary Stenosis/therapy , Health Care Costs , Health Resources/statistics & numerical data , Platelet Aggregation Inhibitors/therapeutic use , Stents , Tetrazoles/therapeutic use , Adult , Cilostazol , Cost-Benefit Analysis , Double-Blind Method , Drug Costs , Humans , Multicenter Studies as Topic , Platelet Aggregation Inhibitors/economics , Randomized Controlled Trials as Topic , Tetrazoles/economics , Time Factors , Treatment Outcome
7.
Dermatol Surg ; 32(12): 1480-5, 2006 Dec.
Article in English | MEDLINE | ID: mdl-17199656

ABSTRACT

BACKGROUND: Solid organ transplant recipients on high doses of immunosuppression are at increased risk for the development of nonmelanoma skin cancer (NMSC). OBJECTIVE: The objective was to assess the possible factors impacting quality of life (QOL) in solid organ transplant recipients. METHODS: Patients were seen in a dermatology clinic integrated within the transplant center at a university-based hospital. One anxiety questionnaire and three QOL questionnaires were administered to each patient. A regression model was used to determine possible predictors of anxiety and lower QOL. RESULTS: The baseline scores on the QOL instruments and anxiety questionnaire indicate poor organ-specific and general QOL as well as high levels of anxiety. Time since transplant was predictive of lower QOL as measured by Skindex-16 (p<.01). While not significant, number of NMSCs correlated with higher anxiety as measured by the STAI (p=.055). CONCLUSIONS: While transplant patients enjoy longer survival, the quality of the extended life has room for improvement. Future studies will determine how QOL changes over time as these patients develop more numerous and aggressive skin cancers. Intervention with regular screening may not only lessen morbidity associated with skin cancer but may improve overall QOL in the posttransplant period.


Subject(s)
Anxiety/psychology , Immunosuppression Therapy/adverse effects , Organ Transplantation/psychology , Quality of Life , Skin Neoplasms/chemically induced , Skin Neoplasms/psychology , Chi-Square Distribution , Female , Humans , Immunosuppression Therapy/psychology , Male , Middle Aged , Pilot Projects , Regression Analysis , Risk Factors , Surveys and Questionnaires
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