Cardiovascular risk factors and complications associated with albuminuria and impaired renal function in insulin-treated diabetes

Gender differences in the association between hyperuricemia and diabetic kidney disease in community elderly patients

AIMS

To investigate gender differences of the associations between hyperuricemia and diabetic kidney disease (DKD) in elderly patients with type 2 diabetes mellitus (T2DM) based on electronic health records (EHR).

METHODS

A total of 20,207 older diabetic patients (mean age 71±7years) were investigated based on the EHR from 2012 to 2013 in the Minhang District of Shanghai-China. The status of hyperuricemia, albuminuric DKD and the odds ratios of DKD relative to hyperuricemia were analyzed among 8541 men and 11,666 women.

RESULTS

The overall rate of hyperuricemia was 20.5% (males: 17.2%, females: 23.0%) and that of albuminuric DKD was 36.2% (males: 32.2%, female: 39.1%) in these diabetic patients. Hyperuricemia was independently associated with increased risk of reduced renal function and albuminuria (p<0.001) in both genders. After adjustment of traditional DKD risk factors, hyperuricemia had a stronger association with albuminuric DKD in males (OR 1.67, 95% CI: 1.48-1.88) than in females (OR 1.23, 95% CI: 1.12-1.35).

CONCLUSIONS

This study showed an independent association of hyperuricemia with albuminuric DKD that was stronger in elderly males for the first time in China based on EHR. The level of uric acid should be monitored and managed in older diabetic patients.

Comprehensive Care for People With Diabetic Kidney Disease

IN BRIEF Diabetic kidney disease carries a heavy burden, both economically and in terms of quality of life, largely because of its very high risk for vascular disease. Coordinated, multidisciplinary care with attention to appropriate, timely screening and preventive management is crucial to reducing the morbidity and mortality of this devastating disease.

Does the Belgian diabetes type 2 care trajectory improve quality of care for diabetes patients?

BACKGROUND

The Belgian care trajectory (CT) for diabetes mellitus type 2 (T2DM), implemented in September 2009, aims at providing integrated, evidence-based, multidisciplinary patient- centred care, based on the chronic care model. The research project ACHIL (Ambulatory Care Health Information Laboratory) studied the adherence of CT patients, in the early phases of CT programme implementation, with CT obligations, their uptake of incentives for self-management, whether the CT programme was targeting the appropriate group of patients, how care processes for these patients evolved over time and whether CT start led to better quality in the processes and outcomes of care.

METHODS

This observational study took place in the period 2006-2011 and covered T2DM patients who started a CT between 01/09/2009 and 31/12/2011. Four data sources were used: outcome data, from electronic patient records (EPRs) on all CT patients, provided by general practitioners (GPs); reimbursement process data on all CT patients and clinically comparable patients; and data from a sample of CT patients and clinically comparable patients from an EPR-based regional GP network and a paper-based national GP network, respectively. Through multilevel analysis of cross-sectional and longitudinal data, the effect of CT inclusion on processes and outcome was estimated, controlling for potential confounders.

RESULTS

By the end of 2011, data on 18,250 CT patients had been collected. Approximately 50 % of these CT patients had received reimbursement for a glucometer and nearly 60 % had had at least one encounter with a diabetes educator. The CT programme recruited T2DM patients who had been difficult to control in the past. In the years prior to CT start, there had been a gradual improvement in the follow up of these patients. Moreover, compared to non-CT patients, the proportion of CT patients adhering to the recommended frequency for monitoring of parameters, such as HbA1c, increased significantly around CT start. Some data sources, albeit not all, suggested there had been an improvement in certain outcomes, such as HbA1c, after CT inclusion.

CONCLUSIONS

According to this study, CT enrolment is associated with better quality of care processes compared to non-CT patients. This improvement was found in several of the data sources used in this study. However, results on outcome parameters remain inconclusive.

Chronic kidney disease in US adults with type 2 diabetes: an updated national estimate of prevalence based on Kidney Disease: Improving Global Outcomes (KDIGO) staging

BACKGROUND

Kidney Disease Improving Global Outcomes (KDIGO) 2013 updated the classification and risk stratification of chronic kidney disease (CKD) to include both the level of renal function and urinary albumin excretion (UAE). The update subclassifies the previous category of moderate renal impairment. There is currently limited information on the prevalence of CKD based on this new classification in United States (US) adults with type 2 diabetes mellitus (T2DM). The objective of this study was to provide such estimates, for T2DM both overall and in those ≥ 65 years of age. We used the continuous National Health and Nutrition Examination Survey (NHANES) 1999-2012 to identify participants with T2DM. Estimated glomerular filtration rate (eGFR) and UAE were calculated using laboratory results and data collected from the surveys, and categorized based on the KDIGO classification. Projections for the US T2DM population were based on NHANES sampling weights.

RESULTS

A total of 2915 adults diagnosed with T2DM were identified from NHANES, with 1466 being age ≥ 65 years. Prevalence of CKD based on either eGFR or UAE was 43.5% in the T2DM population overall, and 61.0% in those age ≥ 65 years. The prevalence of mildly decreased renal function or worse (eGFR < 60/ml/min/1.73 m2) was 22.0% overall and 43.1% in those age ≥ 65 years. Prevalence of more severe renal impairment (eGFR < 45 ml/min/1.73 m2) was 9.0% overall and 18.6% in those age ≥ 65 years. The prevalence of elevated UAE (> 30 mg/g) was 32.2% overall and 39.1% in those age ≥ 65 years. The most common comorbidities were hypertension, retinopathy, coronary heart disease, myocardial infarction, and congestive heart failure.

CONCLUSIONS

This study confirms the high prevalence of CKD in T2DM, impacting 43.5% of this population. Additionally, this study is among the first to report US prevalence estimates of CKD based on the new KDIGO CKD staging system.

Water-pipe smoking and albuminuria: new dog with old tricks

Water-pipe (WP) smoking is on rise worldwide for the past few years, particularly among younger individuals. Growing evidence indicates that WP smoking is as harmful as cigarette smoking. To date, most of the research has focused on acute health effects of WP smoking, and evidence remains limited when it comes to chronic health effects in relation to long-term WP smoking. Therefore, the aim of this study was to examine the association between WP smoking and albuminuria in apparently healthy individuals. This analysis was conducted on data of a population-based cross-sectional study—the Urban Rural Chronic Diseases Study (URCDS). The study sample was recruited from three sites in Pakistan. Trained nurses carried out individual interviews and obtained the information on demographics, lifestyle factors, and past and current medical history. Measurements of complete blood count, lipid profile, fasting glucose level, and 24-hour albuminuria were also made by using blood and urine samples. Albumin excretion was classified into three categories using standard cut-offs: normal excretion, high-normal excretion and microalbuminuria. Multiple logistic regression models were used to examine the relationship between WP smoking and albuminuria. The final analysis included data from 1,626 health individuals, of which 829 (51.0%) were males and 797 (49.0%) females. Of 1,626 individuals, 267 (16.4%) were current WP smokers and 1,359 (83.6%) were non-WP smokers. WP smoking was significantly associated with high-normal albuminuria (OR  =  2.33, 95% CI 1.68-3.22, p-value <0.001) and microalbuminuria (OR  =  1.75, 95% CI 1.18-2.58, p-value 0.005) after adjustment for age, sex, BMI, social class, hypertension, and diabetes mellitus. WP smoking was significantly associated with high-normal albuminuria and microalbuminuria when analysis was stratified on hypertension and diabetes mellitus categories. WP smoking has a strong association with albuminuria in apparently healthy individuals. More research is warranted to evaluate the temporality of this association between WP smoking and albuminuria.