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1.

Aims

Determine the mortality experience among adults with diabetes in meeting and not meeting less intense control for glycated hemoglobin (HbA1c), blood pressure (BP), and cholesterol.

Methods

National Health and Nutrition Examination Survey 1999–2010 participants with self-report of diagnosed diabetes (N = 3335), measured HbA1c, BP and non-HDL cholesterol were linked to the National Death Index through December 31, 2011. Proportional hazards models were used to estimate hazard ratios (HR) of meeting HbA1c < 9% and BP < 160/110, and non-HDL cholesterol < 190 mg/dL. Models used age as the time scale and adjusted for demographics (sex, race/ethnicity, education), diabetes duration, history of cardiovascular and chronic kidney disease, and treatments for elevated glucose, BP, and cholesterol.

Results

Over a mean 5.4 person-years of follow-up, participants meeting all less intense control had a 37% lower mortality (HR = 0.63, 95% CI 0.54, 0.74) relative to those who did not meet the goals. Of approximately 306,000 deaths per year that occur among Americans with diabetes, we estimate 39,400 might have been averted by improving the care of those who have not met these less intense control goals.

Conclusions

Meeting the less intense control goals is associated with 37% reduction in mortality and could lead to 39,400 fewer deaths per year.  相似文献   

2.

Background

Cholesteryl ester transfer protein (CETP) inhibitors are a class of drugs that targets the CETP enzyme to significantly increase serum high-density lipoprotein cholesterol (HDL-C) and decrease low-density lipoprotein cholesterol (LDL-C) levels. As HDL-C has potential antidiabetic properties, and the beneficial effects of CETP drugs on glucose homoeostasis have not been sufficiently studied, the aims of this study were: (1) to evaluate the effect of CETP inhibitors on the incidence of diabetes; and (2) to assess the association between CETP inhibitor-induced changes in HDL-C levels and incidence of diabetes.

Methods

A meta-analysis was performed of randomized controlled clinical trials of CETP inhibitor therapy, either alone or combined with other lipid-lowering drugs, reporting data from new cases of diabetes with a minimum of 6 months of follow-up, after searching the PubMed/MEDLINE, Embase and Cochrane Controlled Trials databases. A fixed-effects meta-regression model was then applied.

Results

Four eligible trials of CETP inhibitors, involving a total of 73,479 patients, were considered for the analyses, including 960 newly diagnosed cases of diabetes in the CTEP inhibitor group vs 1086 in the placebo group. CETP inhibitor therapy was associated with a significant 12% reduction in incidence of diabetes (OR: 0.88, 95% CI: 0.81–0.96; P = 0.005). Assessment of the relationship between on-treatment HDL-C and the effect of CETP inhibitors showed a statistically non-significant trend (Z = –1.13, P = 0.26).

Conclusion

CETP inhibitors reduced the incidence of diabetes. The improvement in glucose metabolism may have been related, at least in part, to the increase in HDL-C concentration.  相似文献   

3.

Aims

To investigate the prevalence and risk factors for diabetic peripheral neuropathy with or without neuropathic pain in Taiwanese.

Methods

A cross-sectional, hospital-based observational study was conducted. We enrolled 2837 adults with type 2 diabetes mellitus. Diabetic peripheral neuropathy with or without pain were diagnosed using 2 validated screening tools, namely the Michigan Neuropathy Screening Instrument and Douleur Neuropathique 4 questionnaire.

Results

In our sample, 2233 participants had no neuropathy, 476 had diabetic peripheral neuropathy without pain, and 128 had diabetic peripheral neuropathy with neuropathic pain, representing an overall diabetic peripheral neuropathy prevalence of 21.3%, and the prevalence of neuropathic pain in diabetic peripheral neuropathy was 21.2%. Multivariate analysis revealed that older age (P < 0.001), treatment with insulin (P = 0.004), microalbuminuria (P = 0.001) or overt proteinuria (P < 0.001) were independently associated with diabetic peripheral neuropathy, whereas older age (P < 0.001), elevated glycated haemoglobin (P = 0.011), lower high-density lipoprotein cholesterol (P = 0.033), and overt proteinuria (P < 0.001) were independently associated with diabetic peripheral neuropathy with neuropathic pain.

Conclusions

During clinical visits involving biochemical studies, the risk for diabetic peripheral neuropathy with neuropathic pain should be considered for people with older age, elevated glycated haemoglobin, low high-density lipoprotein cholesterol and overt proteinuria, with particular attention given to increased levels of albuminuria while concerning neuropathic pain.  相似文献   

4.

Aims

Due to the diversity of the Chinese population, it requires considerable research to evaluate HbA1c diagnostic threshold for diagnosis of hyperglycemia.

Methods

We included 7909 subjects aged ≥15 without known diabetes from the baseline of Pudong community cohort in 2013. Participants took oral glucose tolerance test (OGTT) and HbA1c assay. Receiver operating characteristic curve determined the HbA1c threshold in the diagnosis of hyperglycemia.

Results

The optimal HbA1C threshold for diagnosing newly diagnosed diabetes (NDD) and pre-diabetes in this population was 6.0% (AUC = 0.798, 95%CI: 0.779–0.818) and 5.6% (AUC = 0.655, 95%CI: 0.638–0.671). When compared with elderly age group (≥70 years), HbA1c for detecting NDD performed better in youth (15–39 years: P = 0.003, 40–49 years: P < 0.001). There were 13.81% and 13.34% of participants would be newly detected as NDD and pre-diabetes via HbA1c criteria; meanwhile 3.20% and 15.52% diagnosed as NDD and pre-diabetes by OGTT criteria would be missed diagnosis.

Conclusions

The optimal HbA1c thresholds for NDD and pre-diabetes were lower than ADA criteria. It is necessary to carefully consider whether choose HbA1c as a diagnostic criterion or combine two diagnostic standards. Age-specific diagnostic thresholds should be considered when HbA1c was recommended as diagnostic standard.  相似文献   

5.

Aim

This study investigates the prevalence of smell and taste impairment in adults with diabetes and potential risk factors for sense deterioration and its influence of daily food intake.

Methods

Data from the NHANES 2013-2014 were analyzed. Smell impairment was defined as failing to identify?≥3 of 8 odors in NHANES Pocket Smell Test. Taste impairment was defined as being unable to identify quinine or NaCl in NHANES Tongue Tip and Whole-mouth Test.

Results

A total of 3204 people (428 patients with diabetes, 2776 controls) were suitable to be included. The prevalence of smell impairment in patients with diabetes was higher compared to the controls: 22% versus 15% (p < 0.001). The difference prevailed after adjustment for age, BMI, alcohol misuse and smoking status. Taste was not impaired in patients with diabetes (p = 0.29). Patients with diabetes and smell impairment had a lower daily calorie intake compared to patients with diabetes and normal smell function. The duration of diabetes, diabetic complications and other potential risk factors were not associated with smell dysfunction.

Conclusions

Smell dysfunction appears with a higher prevalence in patients with diabetes, and this seems to negatively affect daily food intake.  相似文献   

6.

Aim

To evaluate the one-year post effect of the implementation of a diabetes program that includes mHealth interventions on the quality of diabetic care in public primary care centers.

Method

It is a quasi-experimental study with outcome measurements at baseline, 6 and 12 months. The program includes primary care team training, a diabetes registry with a decision support tool in an app. and text messages for patients.

Results

At baseline, 947 patients were included in the registry, 62.3% women with a mean age of 53.6 ± 11.5 years and 92% with type 2 diabetes. Common comorbidities were hypertension (61.3%) and obesity (59%). Only 16.9% had one HbA1c and 48.9% a cholesterol lab in the last year, 61.9% were screened for diabetic peripheral neuropathy, and 29.0% had one eye exam in the previous year. With respect to blood sugar, lipid and blood pressure control: 44.4% of those with HbA1c measurements had levels ≥8%, total cholesterol was over 200 mg/dL in 40.6% and 48.2% had uncontrolled blood pressure values.

Conclusion

Patients with diabetes received a low quality of care at public primary care clinics. A diabetes registry allowed us to draw an epidemiological profile of diabetic patients and determine the quality of care provided.  相似文献   

7.

Aim

This study investigates the role of muscle strength as a predictive factor for reduced pulmonary function in diabetes.

Methods

Data from the NHANES 2011–2012 were analyzed. Lung function was assessed with spirometry (FEV1, FVC). Diabetes was assessed with an oral glucose tolerance test (OGTT), glycated hemoglobin (HbA1c), or fasting plasma glucose (FPG). Muscle strength was measured by a grip test using a handgrip dynamometer.

Results

A total of 3521 people were suitable to be included for analysis in this study. Lung function was reduced in diabetes—after adjustment for covariates, the impact of diabetes on FVC was estimated as ?331 mL (SE 48) for known diabetes and ?282 mL (SE 41) for undiagnosed diabetes (P < 0.001). Grip strength was also reduced in diabetes. After adjustment for covariates, the impact of diabetes was estimated as ?5.9 kg (SE 0.8) for known diabetes (P < 0.001). An association between lung capacity and grip strength in people with known diabetes was observed (R = 0.7, P < 0.001). The adjusted impact on FVC from grip strength was estimated as 13.1 mL (SE 3.4) per kg (P < 0.001).

Conclusions

Muscle strength appears to be reduced in people with known diabetes, and this seems to affect the respiratory muscles as an independent factor.  相似文献   

8.

Aim

Diabetic peripheral neuropathy is an important complication and contributes to the morbidity of diabetes mellitus. Evidence indicates early detection of diabetic peripheral neuropathy results in fewer foot ulcers and amputations. The aim of this study was to compare different screening modalities in the detection of diabetic peripheral neuropathy in a primary care setting.

Method

A prospective non-experimental comparative multi-centre cross sectional study was conducted in various Primary Health Centres. One hundred participants living with Type 2 diabetes for at least 10 years were recruited using a convenience sampling method. The Vibratip, 128 Hz tuning fork and neurothesiometer were compared in the detection of vibration perception.

Results

This study showed different results of diabetic peripheral neuropathy screening tests, even in the same group of participants. This study has shown that the percentage of participants who did not perceive vibrations was highest when using the VibraTip (28.5%). This was followed by the neurothesiometer (21%) and the 128 Hz tuning fork (12%) (p < 0.001).

Conclusion

Correct diagnosis and treatment of neuropathy in patients with diabetes is crucial. This study demonstrates that some instruments are more sensitive to vibration perception than others. We recommend that different modalities should be used in patients with diabetes and when results do not concur, further neurological evaluation should be performed. This would significantly reduce the proportion of patients with diabetes who would be falsely identified as having no peripheral neuropathy and subsequently denied the benefit of beneficial and effective secondary risk factor control.  相似文献   

9.

Aim

Diabetes is a growing public health problem in India which is soon going to become the ‘diabetes capital’ of the world. It requires regular care and follow up. We aimed to estimate the household out-of-pocket (OOP) expenditure and catastrophic expenditure due to hospitalization and outpatient care as a result of diabetes.

Materials and methods

Secondary analysis of nationally representative data for India collected by National Sample Survey Organization in 2014, reporting on health service utilization and health care related OOP expenditure by income quintiles and by type of health facility (public or private).

Results

The median household OOP expenditure from hospitalization due to diabetes was USD 151, and was 3 times higher among the richest quintile compared to the poorest quintile (p < 0.001). There was a significantly higher prevalence (p < 0.001) of catastrophic expenditure among the poorest quintile (36%) compared to the richest (14%). Median private sector OOP hospitalization expenditure was four times higher than the public sector (p < 0.001). Medicines accounted for 41% and 69% of public sector hospitalization and outpatient care respectively. Concentration indices show gross inequity in hospitalization expenditure, prevalence of catastrophic expenditure and utilization of public health facility.

Conclusion

Households with diabetic patients incur a high risk of catastrophic expenditure, particularly for those in the lowest income quintiles and those seeking care in the private sector. Increased availability and access to essential drugs and strengthening of public facilities will significantly reduce OOP expenditure.  相似文献   

10.

Introduction

Foot disease is a common complication of type 2 diabetes that can have tragic consequences. Abnormal plantar pressures are considered to play a major role in the pathologies of neuropathic ulcers in the diabetic foot.

Aim

To examine Relationship of Planter Pressure and Glycemic Control in Type 2 Diabetic Patients with and without Neuropathy.

Materials and methods

The study was conducted on 50 type 2 diabetic patients and 30 healthy volunteers. BMI calculation, disease duration, Hemoglobin A1c and presence of neuropathy (by history, foot examination and DN4 questionnaire) were recorded. Plantar pressure was recorded for all patients using the Mat-scan (Tekscan, Inc.vers. 6.34 Boston USA) in static conditions (standing) and dynamic conditions (taking a step on the Mat-scan). Plantar pressures (kPa) were determined at the five metatarsal areas, mid foot area, medial and lateral heel areas and medial three toes.

Results

Static and dynamic plantar pressures in both right and left feet were significantly higher in diabetic with neuropathy group than in control group in measured areas (P < 0.05). Static and dynamic pressures in right and left feet were significantly higher in diabetic with neuropathy group than in diabetic without neuropathy group in measured areas (P < 0.05). On comparison between controls and diabetic without neuropathy group there was a significant difference in plantar pressures especially in metatarsal areas (P < 0.05). No significant correlations were present between the studied variables age, disease duration, BMI and HbA1c and plantar pressures in all studied areas.

Conclusion

Persons with diabetic neuropathy have elevated peak plantar pressure (PPP) compared to patients without neuropathy and control group. HbA1c% as a surrogate for glycemic control had no direct impact on peak planter pressure, yet it indirectly impacts neuropathy evolution through out disease duration eventually leading to the drastic planter pressure and gait biomechanics changes.  相似文献   

11.

Aims

Type 2 diabetes is a chronic metabolic disorder and one of the most common non-contagious diseases which is on the rise all over the world. The present study aims to assess the trend of change in fasting blood sugar (FBS) and factors associated with the progression and regression of type 2 diabetes. Moreover, this study estimates transition intensities and transition probabilities among various states using the multi-state Markov model.

Methods

In this study Multi-Ethnic Study of Atherosclerosis (MESA) dataset, from a longitudinal study, was used. The study, at the beginning, included 6814 individuals who were followed during the five phases of the study. FBS, serving as the criterion to assess the progression of diabetes, was classified into four states including (a) normal (FBS < 100 mg/dl), (b) impaired fasting glucose I (IFG I) (100 mg/dl < FBS < 110 mg/dl), (c) impaired fasting glucose II (IFG II) (110 mg/dl < FBS < 126 mg/dl), and (d) diabetes status (FBS > 126 mg/dl). A continuous-time Markov process was used to describe the evaluation of disease changes over the four states. The model estimated the mean sojourn time for each state.

Results

Based on the results obtained from fitting the Markov model, the transition probability for a normal individual to remain in the same status over a 10-year period was 0.63, while the probability for a person in the diabetes state was 0.40. The mean sojourn time for the normal and diabetic individuals aged 45–84 years was 6.26 and 5.20 respectively. The covariates of age, race, body mass index (BMI), physical activity, waist-to-hip ratio (WHR) and blood pressure, significantly affected the progression and regression of diabetes.

Conclusion

An increase in physical activity could be the most important factor in the regression of diabetes, while an increase in WHR and BMI could be the most significant factors in progression of the disease.  相似文献   

12.

Aim

The role of glycaemic control in the mortality of elderly diabetic patients remains uncertain. GERODIAB is the first multi-centre, prospective, observational study that aims to describe the link between HbA1c and 5-year mortality in French, type 2 diabetic patients aged ≥ 70 years.

Methods

Consecutive patients (n = 987; mean age 77 years) were included from 56 diabetes centres and followed for five years. Individual histories, risk factors, standard diabetes parameters and geriatric evaluations were regularly recorded. Survival was studied using the Kaplan–Meier method. Multivariable analyses used Cox regression.

Results

Twenty-one percent of the patients died, 13% were lost during follow-up. Patients with a 5-year mean HbA1c in the range [40–50) mmol/mol ([5.8–6.7) %) had the highest survival (84%); those in the range [50–70) mmol/mol ([6.7–8.6) %) or < 40 mmol/mol (< 5.8%) an intermediary survival rate (79%); patients with HbA1c ≥ 70 mmol/mol (≥ 8.6%) the worst survival (71%). Patients with mean HbA1c ≥ 70 mmol/mol (≥ 8.6%) had a significantly higher mortality than those with lower HbA1c (P = 0.011), and HbA1c remained a significant predictor of mortality after adjusting for individual, diabetic and geriatric factors (hazards ratio [95%CI]: 1.76 [1.21 to 2.57], P = 0.0033). Survival was also significantly associated with both HbA1c variability and with the frequency of HbA1c determinations.

Conclusion

In this large sample of elderly French type 2 diabetic patients, an HbA1c level < 70 mmol/mol (< 8.6%) was associated with lower mortality. The range [40–50) mmol/mol ([5.8–6.7) %) could be an acceptable target provided patients are not exposed to hypoglycaemia.  相似文献   

13.

Background

The epidemiology of type 1 diabetes mellitus (T1DM) suggests diagnostic delays may contribute to children developing diabetic ketoacidosis at diagnosis. We sought to quantify opportunities for earlier diagnosis of T1DM in primary care.

Methods

A matched case-control study of children (0–16 years) presenting to UK primary care, examining routinely collected primary care consultation types and National Institute for Health and Care Excellence (NICE) warning signs in the 13 weeks before diagnosis.

Results

Our primary analysis included 1920 new T1DM cases and 7680 controls. In the week prior to diagnosis more cases than controls had medical record entries (663, 34.5% vs 1014, 13.6%, odds ratio 3.46, 95% CI 3.07–3.89; p < 0.0001) and the incidence rate of face-to-face consultations was higher in cases (mean 0.32 vs 0.11, incidence rate ratio 2.90, 2.61–3.21; p < 0.0001). The preceding week entries were found in 330 cases and 943 controls (17.2% vs 12.3%, OR 1.49, 1.3–1.7, p < 0.0001), but face-to-face consultations were no different (IRR 1.08 (0.9–1.29, p = 0.42)).

Interpretation

There may be opportunities to reduce time to diagnosis for up to one third of cases, by up to two weeks. Diagnostic opportunities might be maximised by measures that improve access to primary care, and public awareness of T1DM.  相似文献   

14.
15.

Aim

To analyze the efficacy and safety of replacing sitagliptin with canagliflozin in patients with type 2 diabetes (T2D) and poor metabolic control despite treatment with sitagliptin in combination with metformin and/or gliclazide.

Materials and methods

In this multicentre observational, retrospective, 26-week clinical study of patients with T2D and poor glycaemic control (HbA1c: 7.5–9.5%) treated with sitagliptin in combination with metformin and/or gliclazide, sitagliptin (and gliclazide if appropriate) were replaced by canagliflozin. The main outcome of the study was the proportion of patients who achieved good glycaemic control (HbA1c < 7%) by the end of the study.

Results

The study sample comprised 50 patients (baseline HbA1c 8.0 ± 0.6%) treated with sitagliptin 100 mg/day, 14 of whom were also taking gliclazide 60 mg/day while 38 were taking metformin 1700 mg/day. Sitagliptin treatment was replaced by either canagliflozin 100 mg (n = 17) or 300 mg (n = 33). After 26 weeks of follow-up, these patients presented with significant decreases in HbA1c (?1.1%; P < 0.000), weight (?3.89 kg; P < 0.000), BMI (?1.37 kg/m2; P < 0.022), abdominal circumference (?5.42 cm; P < 0.004), systolic and diastolic blood pressure (?5.3 mmHg and ?4.4 mmHg, respectively; P = 0.005), triglycerides (?42 mg/dL; P = 0.005) and LDL/HDL cholesterol ratio (?0.34; P = 0.005). By the end of the study, 42% of patients had achieved HbA1c levels < 7%.

Conclusion

In patients with T2D poorly controlled with sitagliptin, whether alone or in combination with metformin and/or gliclazide, replacing it with canagliflozin may be a simple yet effective intensification strategy. Our results, which may have important implications for clinical practice, now need to be confirmed in larger observational studies.  相似文献   

16.

Aim

As the prevalence and clinical characteristics of non-alcoholic fatty liver disease (NAFLD) are still unknown in ketosis-onset diabetes, the present study compared the characteristics of NAFLD in type 1 diabetes (T1D), ketosis-onset and non-ketotic type 2 diabetes (T2D) patients.

Methods

This cross-sectional study was performed with newly diagnosed Chinese patients with diabetes, including 39 T1D, 165 ketosis-onset and 173 non-ketotic T2D, with 30 non-diabetics included as controls. NAFLD was determined by hepatic ultrasonography, then its clinical features were analyzed and its associated risk factors evaluated.

Results

NAFLD prevalence in patients with ketosis-onset diabetes (61.8%) was significantly higher than in controls (23.3%; P = 0.003) and in T1D patients (15.4%; P < 0.001). However, there was no difference in prevalence between ketosis-onset and non-ketotic T2D patients (52.6%; P = 0.229), although BMI and alanine aminotransferase (ALT) proved to be independent risk factors for the presence of NAFLD in both these groups whereas, in T1D patients, serum uric acid levels were independent risk factors.

Conclusion

NAFLD prevalence and risk factors in ketosis-onset diabetes were similar to those in non-ketotic T2D, but different from those in T1D. These data provide further evidence that ketosis-onset diabetes should be classified as a subtype of T2D rather than idiopathic T1D.  相似文献   

17.

Background

The quality of life is an important indicator of quality of care in chronic diseases such as diabetes and TB. The present research is conducted with an aim to assess the Quality of Life of Diabetic Patients with Smear Positive PTB.

Methods

This cross-sectional study was conducted on 62 diabetic patients with smear positive PTB from January to May 2016 in a diabetes clinic in Zahedan city (southeast of Iran). A simple random sampling method was used in this study. Instrument for data collection was quality of life (SF-36) questioner.

Results

Total quality of life score was 48 that showed an average level of quality of life. Sixty-five patients with diabetes and affected by smear positive pulmonary tuberculosis (PTB) with the average age of 51.30 ± 10.84 years participated in this research. Four patients (0.06%) suffered from type 1 diabetes and 58 (94%) from type 2 diabetes, and all of them were smear positive PTB patients. Study of their quality of life revealed that, in general, the average scores for quality of life in the two main subgroups of physical health and mental health were lower than the average and, among the eight studied dimensions, the highest scores were those for physical activity (60 ± 14.23) and the lowest (31.42 ± 12.14) for general health in the subgroup of physical health.

Conclusion

Results indicated that the patients had a low quality of life although they received the care and treatments that are effective in patients with diabetes and suffering from smear-positive PTB.  相似文献   

18.

Aim

The aim of this study was to assess the level of sugar intake among Sudanese individuals.

Materials and methods

A cross-sectional study with 323 participants. Respondents were grouped by the total intake of added sugars into two groups, one group with sugar intake more than 200 calories per day and other group with sugar intake less than 200 calories per day. Demographic data were collected with anthropometric measurements like body mass index (BMI) and waist circumference. Chi square, T-Tests and stepwise logistic regression were used (a p-value <0.05 was considered significant).

Results

High sugar intake was noted among 74.6% participants and among overweight, normal weight, followed by obese (p < 0.015) and then individuals with diabetes and hypertension (p < 0.000 and 0.038 respectively).High sugar intake was also associated with abdominal obesity (p < 0.016), mean age of 33 years old (p < 0.00) and being married and single(p < 0.003). Stepwise logistic regression showed diabetes and BMI < 25 were absolute predictors for sugar consumption with p value of 0.001 and 0.039 respectively. Individuals with diabetes have more than five times probability to consume large amount of sugar (Odd ratio 5.6), while those with BMI < 25 have two times risk of consuming more sugar compared to those with BMI > 25 group (Odd ratio 2.1).

Conclusion

A large percentage of Sudanese population uses a high amount of sugar. High sugar intake was associated with normal weight, overweight, abdominal obesity, diabetes and hypertension. Absolute predictors of high sugar intake were diabetes and normal body weight.  相似文献   

19.
Individuals with diabetes develop lower extremity amputation for several reasons. Investigations into pathways to the development of complications are important both for treatment and prevention.

Aim

To evaluate the relationship between amputation and risk factors in people with diabetes mellitus.

Materials and method

All participants included in this study (n = 165) were recruited from the Diabetic Foot Program, developed in a Brazilian University, over seven years (2007–2014) and all information for this study was extracted from their clinical records.

Results

The prevalence of amputation in patients with diabetes with four risk factors was up to 20% higher when compared to those with only one risk factor. The main predictive risk factors for amputation in this population were the presence of an ulcer and smoking.

Conclusion

The risk factors for amputation can be predicted for people with diabetes mellitus and, in the present study, the main factors were the presence of an ulcer and the smoking habit.  相似文献   

20.

Aim

This study aimed to test the dose-response relationship between fasting blood glucose (FBG) levels and risk of prostate cancer.

Methods

A systematic search was done of PubMed and Scopus from their inception up to January 2017. Prospective and retrospective studies reporting risk estimates of prostate cancer for two or more categories of blood glucose levels were identified, and two independent authors extracted the information. Relative risk (RR) was calculated using random-effects models and pooled.

Results

Ten prospective cohort studies, one nested case-control study, one case-cohort study and three case-control studies (total n = 1,214,947) involving 12,494 cases of prostate cancer were reviewed. The pooled RR of prostate cancer for the highest vs. lowest category of FBG was 0.88 (95% CI: 0.78–0.98, I2 = 25.5%, n = 15 studies). A 10 mg/dL increment in FBG level was not associated with risk of prostate cancer (0.98, 95% CI: 0.96–1.00, I2 = 45.4%, n = 11 studies). Subgroup analyses yielded a significant inverse association only in the subgroup of cohort studies. Non-linear dose-response meta-analysis showed a very slight decrement in risk with increasing FBG levels. Sensitivity analyses using cohort studies showed a steep decrease in risk along with an increase in FBG from baseline levels of ≈ 70 mg/dL across prediabetes and diabetes ranges.

Conclusion

Higher FBG levels are associated with lower risk of prostate cancer in cohort studies, but not in case-control studies, findings that limit interpretation of our present results.  相似文献   

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