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      Integrating substance abuse care with community diabetes care: implications for research and clinical practice

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          Abstract

          Cigarette smoking and alcohol use are prevalent among individuals with diabetes in the US, but little is known about screening and treatment for substance use disorders in the diabetic population. This commentary discusses the scope and clinical implications of the public health problem of coexisting substance use and diabetes, including suggestions for future research. Diabetes is the seventh leading cause of death in the US, and is associated with many severe health complications like cardiovascular disease, stroke, kidney damage, and limb amputations. There are an estimated 24 million adults in the US with type 2 diabetes. Approximately 20% of adults aged 18 years or older with diabetes report current cigarette smoking. The prevalence of current alcohol use in the diabetic population is estimated to be around 50%–60% in epidemiological surveys and treatment-seeking populations. Cigarette smoking is associated with an increased risk of type 2 diabetes in a dose-dependent manner and is an independent modifiable risk factor for development of type 2 diabetes. Diabetic patients with an alcohol or other drug use disorder show a higher rate of adverse health outcomes. For example, these patients experience more frequent and severe health complications as well as an increased risk of hospitalization, and require longer hospital stays. They are also less likely to seek routine care for diabetes or adhere to diabetes treatment than those without an alcohol or other drug use disorder. The Affordable Care Act of 2010 and the Mental Health Parity Act and Addiction Equity Act of 2008 provide opportunities for facilitating integration of preventive services and evidence-based treatments for substance use disorders with diabetes care in community-based medical settings. These laws also offer emerging areas for research.

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          Active smoking and the risk of type 2 diabetes: a systematic review and meta-analysis.

          Observational studies have suggested an association between active smoking and the incidence of type 2 diabetes. To conduct a systematic review with meta-analysis of studies assessing the association between active smoking and incidence of type 2 diabetes. A search of MEDLINE (1966 to May 2007) and EMBASE (1980 to May 2007) databases was supplemented by manual searches of bibliographies of key retrieved articles, reviews of abstracts from scientific meetings, and contact with experts. Studies were included if they reported risk of impaired fasting glucose, impaired glucose tolerance, or type 2 diabetes in relationship to smoking status at baseline; had a cohort design; and excluded persons with diabetes at baseline. Two authors independently extracted the data, including the presence or absence of active smoking at baseline, the risk of diabetes, methods used to detect diabetes, and key criteria of study quality. Relative risks (RRs) were pooled using a random-effects model. Associations were tested in subgroups representing different patient characteristics and study quality criteria. The search yielded 25 prospective cohort studies (N = 1.2 million participants) that reported 45 844 incident cases of diabetes during a study follow-up period ranging from 5 to 30 years. Of the 25 studies, 24 reported adjusted RRs greater than 1 (range for all studies, 0.82-3.74). The pooled adjusted RR was 1.44 (95% confidence interval [CI], 1.31-1.58). Results were consistent and statistically significant in all subgroups. The risk of diabetes was greater for heavy smokers (> or =20 cigarettes/day; RR, 1.61; 95% CI, 1.43-1.80) than for lighter smokers (RR,1.29; 95% CI, 1.13-1.48) and lower for former smokers (RR, 1.23; 95% CI, 1.14-1.33) compared with active smokers, consistent with a dose-response phenomenon. Active smoking is associated with an increased risk of type 2 diabetes. Future research should attempt to establish whether this association is causal and to clarify its mechanisms.
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            Cigarette smoking is associated with dose-related and potentially reversible impairment of endothelium-dependent dilation in healthy young adults.

            Cigarette smoking is the most important modifiable risk factor for atherosclerosis. Endothelial dysfunction is an early event in atherogenesis, and we hypothesized that smoking might be associated with endothelial damage in the systemic arteries of otherwise healthy young adults. We studied noninvasively the brachial arteries of 200 subjects aged 15 to 57 years, all normotensive, nondiabetic with cholesterol level < or = 240 mg/dL and no family history of premature vascular disease: 80 control subjects aged 16 to 56 years (mean, 35), 80 current smokers aged 15 to 55 years (mean, 33), and 40 former smokers aged 25 to 57 years (mean, 38). Total lifetime amount smoked varied from 1 to 75 pack years in the smokers. Using high-resolution ultrasound, vessel diameter was measured at rest, during reactive hyperemia (with flow increase causing endothelium-dependent dilation), and after sublingual glyceryl trinitrate (GTN, an endothelium-independent vasodilator). Flow-mediated dilation (FMD) was observed in all the control subjects (10 +/- 3.3%; range, 4% to 22%) but was impaired or absent in the smokers (4 +/- 3.9%; range, 0% to 17%; P < .0001). FMD in the smokers was inversely related to lifetime dose smoked (6.6 +/- 4.0% in very light smokers, 4.0 +/- 3.1% in light smokers, 3.2 +/- 3.2% in moderate smokers, and 2.6 +/- 1.2% in heavy smokers; P < .01). FMD for the former smokers was 5.1 +/- 4.1% (range, 0% to 15%). In a multivariate model adjusting for age, sex, cholesterol, smoking history, and vessel size, former smoking was associated with a higher FMD than current smoking (P = .07); when only male former and current smokers were considered, the higher FMD was significant (P = .0001) but not for female smokers (P = .24). GTN caused dilation in all subjects (control subjects, 20 +/- 5.2%; smokers, 17 +/- 5.8%; former smokers, 17.4 +/- 5.4%). Vessel diameter, baseline flow, and degree of reactive hyperemia (Doppler estimated) were similar in all groups. Cigarette smoking is associated with dose-related and potentially reversible impairment of endothelium-dependent arterial dilation in asymptomatic young adults, consistent with endothelial dysfunction.
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              Screening, brief interventions, referral to treatment (SBIRT) for illicit drug and alcohol use at multiple healthcare sites: comparison at intake and 6 months later.

              Alcohol screening and brief interventions in medical settings can significantly reduce alcohol use. Corresponding data for illicit drug use is sparse. A Federally funded screening, brief interventions, referral to treatment (SBIRT) service program, the largest of its kind to date, was initiated by the Substance Abuse and Mental Health Services Administration (SAMHSA) in a wide variety of medical settings. We compared illicit drug use at intake and 6 months after drug screening and interventions were administered. SBIRT services were implemented in a range of medical settings across six states. A diverse patient population (Alaska Natives, American Indians, African-Americans, Caucasians, Hispanics), was screened and offered score-based progressive levels of intervention (brief intervention, brief treatment, referral to specialty treatment). In this secondary analysis of the SBIRT service program, drug use data was compared at intake and at a 6-month follow-up, in a sample of a randomly selected population (10%) that screened positive at baseline. Of 459,599 patients screened, 22.7% screened positive for a spectrum of use (risky/problematic, abuse/addiction). The majority were recommended for a brief intervention (15.9%), with a smaller percentage recommended for brief treatment (3.2%) or referral to specialty treatment (3.7%). Among those reporting baseline illicit drug use, rates of drug use at 6-month follow-up (4 of 6 sites), were 67.7% lower (p<0.001) and heavy alcohol use was 38.6% lower (p<0.001), with comparable findings across sites, gender, race/ethnic, age subgroups. Among persons recommended for brief treatment or referral to specialty treatment, self-reported improvements in general health (p<0.001), mental health (p<0.001), employment (p<0.001), housing status (p<0.001), and criminal behavior (p<0.001) were found. SBIRT was feasible to implement and the self-reported patient status at 6 months indicated significant improvements over baseline, for illicit drug use and heavy alcohol use, with functional domains improved, across a range of health care settings and a range of patients.
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                Author and article information

                Journal
                Subst Abuse Rehabil
                Subst Abuse Rehabil
                Substance Abuse and Rehabilitation
                Dove Medical Press
                1179-8467
                2013
                11 January 2013
                : 4
                : 3-10
                Affiliations
                [1 ]Center for the Clinical Trials Network, National Institute on Drug Abuse, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, USA
                [2 ]Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
                Author notes
                Correspondence: Udi E Ghitza Center for the Clinical Trials Network, National Institute on Drug Abuse, National Institutes of Health, 6001 Executive Boulevard, Bethesda, MD 20892, USA, Tel +1 301 443 6697, Fax +1 301 443 2317, Email ghitzau@ 123456nida.nih.gov
                Article
                sar-4-003
                10.2147/SAR.S39982
                3558925
                23378792
                4cf18ecf-a4e0-4090-82d8-6e330833bd1a
                © 2013 Ghitza et al, publisher and licensee Dove Medical Press Ltd

                This is an Open Access article which permits unrestricted noncommercial use, provided the original work is properly cited.

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                Categories
                Commentary

                addiction,illicit drug use,substance use disorder,substance abuse treatment,alcohol use,diabetes care,primary care,screening,brief intervention

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