Gender differences in cardiovascular risk factors in incident diabetes

Creatine kinase is associated with glycated haemoglobin in a nondiabetic population. The Tromsø study

BACKGROUND

Creatine kinase (CK) has been associated with insulin resistance and identified as a risk marker of cardiovascular disease largely by its relationship with hypertension and increased body mass index. This study determined whether CK is a predictor of glycated haemoglobin (HbA1C) in a nondiabetic general population.

METHODS

Associations between CK and the outcome variable HbA1C (%) were performed by variance and multivariate analyses in 11662 nondiabetic subjects defined as HbA1C (%) <6.5 who participated in the population based Tromsø study (Tromsø 6) in Norway.

RESULTS

Abnormal elevated CK was detected in 543/11662 participants (4.66%). Mean HbA1C (%) in the "high CK" group was 5.62 (SD = 0.33) compared to 5.52 (SD = 0.36) in the "normal CK" group, P <0.001. CK increased significantly and linearly with higher levels of HbA1C (%) quartiles in women (P <0.001) and non-linearly in men (P <0.001). In a multivariate analysis, CK was independently associated with HbA1C (%) after adjusting for age, sex, body mass index, blood pressure, glucose, lipids, C-reactive protein, creatinine, alanine transaminase and aspartate aminotransferase. A 1-unit increase in log CK was associated with a 0.17-unit increase in HbA1C (%).

CONCLUSION

These data demonstrate a positive and independent association between CK and glycated haemoglobin in a nondiabetic general population.

Phase angle and diabetes in community-dwelling older adults: cross-sectional analysis from the Malaysian elders longitudinal research (MELoR) study

OBJECTIVE

To evaluate the role of PhA in diabetes in a large population of older adults with a high prevalence of diabetes in order to gain new insights on the potential diagnostic and prognostic role of PhA in individuals with diabetes.

DESIGN

Cross-sectional study.

SETTING

Teaching Hospital.

PARTICIPANTS

1085 individuals aged 55 years or over.

MEASUREMENTS

Phase Angle was obtained using bioimpedance analysis with the Bodystat QuadScan^® 4000. Diabetes mellitus was considered present with fasting hyperglycaemia (serum fasting glucose >6.66 mmol/l), HbA1c > 42 mmol/mol (6.1%), or self-reported Diabetes or the consumption of glucose-lowering agents.

RESULTS

The mean age of the (standard deviation) of the 1,085 participants was 68.11 (7.12) years and 60.7% were women. Among male participants, individuals with PhA within the lowest quartile (PhA ≤4.9) were significantly more likely to have diabetes mellitus [odds Ratio (95% confidence interval, CI), 2.02 (1.17-3.47)] following adjustments for age, body mass index and other comorbidities. The above relationship was attenuated following further adjustment hypoglycaemic medications. Men on oral hypoglycaemic agents had significantly reduced PhA [mean difference (95% CI), -0.44 (-0.67 to -0.22)]. No significant relationship between PhA and diabetes existed among women.

CONCLUSION

The association between lower PhA (≤4.9) in men aged 55 and over and diabetes which is accounted for by oral hypoglycaemic agents. The mechanisms underlying this relationship remain unclear. This relationship should also be evaluated further to determine the potential of PhA as a prognostic tool for diabetes.

Factors associated with the risk of diabetic foot in patients with diabetes mellitus in Primary Care

OBJECTIVE

To analyze factors associated with diabetic foot risk in patients with diabetes mellitus assisted in Primary Care.

METHOD

Observational, analytic, and transversal study took place in Teresina, Piauí, with diabetic patients who are assisted in Primary Care. Data collection took place through interviews, foot clinical exams, and medical record analysis. We used the Mann-Whitney, Pearson's Chi-square and multiple logistic regression statistics tests to analyze the data. The association power among categorical variables was measured by Odds Ratio .

RESULTS

322 patients participated. Marital status with a partner presented a protection factor (p = 0.007). Risk factors for the development of the diabetic foot are: arterial hypertension (p = 0.045), obesity (p = 0.011), smoking (p = 0.027), not being submitted to follow ups (p = 0.046), inadequate control of capillary blood glucose (p < 0.001), indisposition to the care of the foot (p=0.014), and foot self-exam less frequently (p = 0.040).

CONCLUSION

Sociodemographic, clinical, and self-care aspects interfere in diabetic foot development, highlighting the necessity of effective follow up tracking and educational interventions for patients with diabetes mellitus in Primary Care.

Risk factor control among Black and White adults with diabetes onset in older adulthood: The Reasons for Geographic and Racial Differences in Stroke (REGARDS) study

The objective of this study was to determine whether attainment of clinical and lifestyle targets varied by race and sex among adults with diabetes onset in older adulthood. This study included 1420 black and white adults from the REGARDS study without diabetes at baseline (2003-07) but with diabetes onset at the follow-up exam (2013-16). Attainment of clinical targets (A1c <8%; blood pressure < 140/90 mmHg; and statin use) and lifestyle targets (not smoking; physical activity≥ 4 times/week; and moderate/no alcohol use) was assessed at the follow-up exam. Modified Poisson regression was used to obtain prevalence ratios (PR) for meeting clinical and lifestyle targets stratified by race and sex, separately. The mean age was 71.5 years, 53.6% were female, and 46.1% were black. The majority were aware of their diabetes status (85.7%) and used oral or injectable hypoglycemic medications (64.8%). Overall, 39.4% met all 3 clinical targets and 18.8% met all 3 lifestyle targets. Meeting A1c and blood pressure targets were similar by race and sex. Statin use was more prevalent for men than women among white adults (PR = 1.13; 95% CI = 0.99-1.29) and black adults (PR = 1.23; 95% CI = 1.06-1.43). For lifestyle factors, the non-smoking prevalence was similar by race and sex, while white men were more likely than white women to be physically active. Although the attainment of each clinical and lifestyle target separately was generally high among adults with diabetes onset in older adulthood, race and sex differences were apparent. Comprehensive management of clinical and lifestyle factors in people with diabetes remains suboptimal.

Age-, sex- and ethnicity-related differences in body weight, blood pressure, HbA1c and lipid levels at the diagnosis of type 2 diabetes relative to people without diabetes

AIMS/HYPOTHESIS

The aim of this work was to determine how weight patterns together with blood glucose, BP and lipids vary at diagnosis of diabetes by age, sex and ethnicity.

METHODS

Using the UK Clinical Practice Research Datalink, we identified people with type 2 diabetes (n = 187,601) diagnosed in 1998-2015 and compared their weights, HbA_1c, BP and lipid levels at diagnosis with age-matched people without diabetes (n = 906,182), by sex and ethnic group.

RESULTS

Younger age at diagnosis was associated with greater adjusted mean difference (95% CI) in weight between those with vs without type 2 diabetes: 18.7 (18.3, 19.1) kg at age 20-39 years and 5.3 (5.0, 5.5) kg at age ≥ 80 years. Weight differentials were maximal in white women, and were around double in white people compared with South Asian and black people. Despite lower absolute values, BP differences were also greater at younger age of diabetes onset: 7 (6, 7) mmHg at age 20-39 years vs -0.5 (-0.9, -0.2) at age ≥ 80 years. BP differences were greatest in white people, and especially in women. Triacylglycerol level differences were greatest in younger men. Finally, HbA_1c levels were also higher with younger onset diabetes, particularly in black people.

CONCLUSIONS/INTERPRETATION

At diagnosis of type 2 diabetes, when compared with people without diabetes, weight and BP differentials were greater in younger vs older people, in women vs men and in white vs South Asian and black people. These differences were observed even though South Asian and black people tend to develop diabetes a decade earlier with either similar or greater dysglycaemia. These striking patterns may have implications for management and prevention. Graphical abstract.

Sex difference in the incidence of microvascular complications in patients with type 2 diabetes mellitus: a prospective cohort study

AIMS

Type 2 diabetes mellitus is a major cause of death and disability due to its long-term macro- and microvascular diseases. Although women with type 2 diabetes have more macrovascular diseases, it is unclear whether there are sex differences in the occurrence of microvascular disease. The aim of our study was to investigate sex differences in the incidence of microvascular complications in type 2 diabetes.

METHODS

Analyses were performed in the DiaGene study, a prospective cohort study for complications of type 2 diabetes, collected in the city of Eindhoven, the Netherlands (n = 1886, mean follow-up time = 6.93 years). Cox proportional hazard models adjusted for risk factors for complications (age, smoking, hypertension, dyslipidemia, HbA1c and duration of type 2 diabetes) were used to analyze the incidence of microvascular complications in men and women.

RESULTS

The incidence of microalbuminuria was significantly higher in men (HR microalbuminuria 1.64 [CI 1.21-2.24], p = 0.002). Additionally, men are more likely to develop two or three microvascular complications compared to women (OR 2.42 [CI 1.69-3.45], p < 0.001).

CONCLUSIONS

This study shows that men with type 2 diabetes are more likely to develop microvascular complications, especially microalbuminuria. Furthermore, men seem to have a higher chance of developing multiple microvascular complications. Our results highlight that men and women may not benefit to a similar extent from current treatment approaches to prevent diabetes-related microvascular diseases.

Factors associated with glycemic control in people with diabetes mellitus

Investigate the factors associated with the glycemic control in people with diabetes mellitus (DM). Cross-sectional study with 746 people with type-2 DM of age 40 or older. The following variables were selected: socioeconomic, clinical data, lifestyle and the risk of developing foot ulcers. Data collection occurred through interviews, medical record analysis and clinical examination of the lower limbs. We used the Poisson multiple regression model to determine the crude and adjusted prevalence ratios (PR) of the glycemic alteration. The alteration in the glycated hemoglobin (HbA1c) test was considered as a dependent variable in this study, which has been classified as high when the result was higher than 7%. The alteration in HbA1c was present in 68.9% of the participants and was more prevalent in individuals aged between 50 and 69 (PR = 1.38/IC95% = 1.09-1.75), who were taking insulin (PR = 1.35/IC95% = 1.24-1.47), obese (PR = 1.14/IC95% = 1.03-1.25) and who had foot ulceration risk (PR = 1.14/IC95% = 1.09-1.28). Individuals aged between 50 and 69; the ones who used insulin; the obese ones; and those who had a risk of foot ulceration, presented higher prevalence rates of alteration in the glycated hemoglobin.

Cardiovascular Disease in Type 2 Diabetes: A Review of Sex-Related Differences in Predisposition and Prevention

Type 2 diabetes mellitus is a major risk factor for cardiovascular disease. However, compiled data suggest that type 2 diabetes affects the risk of cardiovascular disease differentially according to sex. In recent years, large meta-analyses have confirmed that women with type 2 diabetes have a higher relative risk of incident coronary heart disease, fatal coronary heart disease, and stroke compared with their male counterparts. The reasons for these disparities are not completely elucidated. A greater burden of cardiometabolic risk in women was proposed as a partial explanation. Indeed, several studies suggest that women experience a larger deterioration in major cardiovascular risk factors and put on more weight than do men during their transition from normoglycemia to overt type 2 diabetes. This excess weight is associated with higher levels of biomarkers of endothelial dysfunction, inflammation, and procoagulant state. Moreover, sex differences in the prescription and use of some cardiovascular drugs may compound an "existing" disparity. We searched PubMed for articles published in English and French, by using the following terms: ("cardiovascular diseases") AND ("diabetes mellitus") AND ("sex disparity" OR "sex differences" OR "sex related differences" OR "sex-related differences" OR "sex disparities"). In this article, we review the available literature on the sex aspects of primary and secondary prevention of cardiovascular disease in people with type 2 diabetes, in the predisposition to cardiovascular disease in those people, and in the control of diabetes and associated cardiovascular risk factors.

Educational intervention on cardiovascular parameters in perimenopausal women with a cardiovascular risk factor. Randomised clinical trial

BACKGROUND AND OBJECTIVE

Randomised clinical trial performed in two urban health centres in Spain. To evaluate if educational intervention in women of perimenopausal age with hypertension, diabetes mellitus and/or dyslipidaemia could achieve significant changes in the reduction of biochemical and haemodynamic risk parameters.

PATIENTS AND METHODS

The study included 320 women aged between 45 and 60 years old who were diagnosed with hypertension, diabetes mellitus and/or dyslipidaemia. They were randomly assigned to the experimental group (n=160) and the control group (n=160). The intervention group received three educational sessions and the control group received an informative leaflet sent by mail. Haemodynamic and biochemical variables were evaluated at baseline and one year later in both groups.

RESULTS

Women in the intervention group showed a decrease in low density lipoprotein (P=.034), (-5.89±29.8; 95% CI: -13.1/0.27) and an increase in high density lipoprotein (P=.013), (2.71±10.6; 95% CI: -1.36/6.20), as well as improvements in systolic blood pressure (P=.016), (-2.16±11.8; 95% CI: -4.4/0.01) and frequency (P=.003), (-1.46±10.3; 95% CI: -3.34/0.42) compared to women in the control group. Women in the control group significantly increased glucose (P=.04), (4.84±15.5; 95% CI: -0.75/31.3) and gamma-glutamyltranspeptidase (P=.031), (3.61±14.7; 95% CI: 0.87/6.36) levels more than those in the experimental group.

CONCLUSIONS

An educational intervention can be an effective method of reducing the parameters associated with an increased likelihood of cardiovascular disease in women at perimenopausal age with hypertension, diabetes mellitus and/or dyslipidaemia.

Abdominal adiposity contributes to adverse glycemic control and albuminuria in Chinese type 2 diabetic patients: A cross-sectional study

BACKGROUND

Abdominal adipose tissue plays an important role in the development of type 2 diabetes. However, few data have suggested its role in the prognosis of diabetes. This study aimed to investigate the association between waist-hip ratio (WHR), glycemic control, and early nephropathy in Chinese type 2 diabetic patients.

METHODS

A cross-sectional study was conducted in 1709 previously- and newly-diagnosed diabetic patients nested in a cohort study consisting of 10 375 participants aged ≥40 years in Shanghai, China. General characteristics through questionnaire, anthropometric measures, and biochemical results were recorded. Statistical analysis was performed by SPSS v20.0.

RESULTS

Each quartile increase in WHR was significantly associated with a fasting plasma glucose (FPG) ≥ 126 mg/dl [OR (95% CI):1.18 (1.06-1.30)], an HbA1c ≥ 7.0% [1.21 (1.08-1.35)], and a HOMA-IR ≥ 2.5 [1.30 (1.16-1.46)] after multivariable adjustments. WHR was not associated with a 2h PG ≥ 200mg/dl [1.13 (0.97-1.31)]. The risk for increased albuminuria (UACR ≥10.18mg/g) was also significantly associated with higher WHR after adjustment for HbA1c [1.14 (1.02-1.27)]. However, no significant relationship was seen between WHR and an estimated glomerular filtration rate < 90 ml/min per 1.73 m² . Interactions of sex, or physical activity with WHR in association with glycemic control and increased albuminuria were found (P values for interaction <0.05).

CONCLUSIONS

These data demonstrated an independent role of abdominal adipose tissue in glycemic control and renal complications of type 2 diabetes. Interventions aiming to reduce abdominal adipose tissue may have additional benefits.

Differences between genders in relation to factors associated with risk of diabetic foot in elderly persons: A cross-sectional trial

AIMS

This trial aims to identify differences between genders in relation to factors associated with the risk of diabetic foot in elderly persons.

METHODS

We evaluated 187 older adults diagnosed with diabetes type 2. The variables investigated were sociodemographic data, clinical history of diabetes mellitus and complaints about the feet. The plantar sensitivity was evaluated on both feet, with the use of Semmes-Weinstein monofilaments. For data analysis we used chi-square test and binary logistic regression (p < 0.05; 95% CI).

RESULTS

We included 174 elderly people who had no history of stroke and peripheral vascular disease. Most (58.6%) were female and among them the risk factors for diabetic foot were older age (p < 0.021; OR 6.0), presence of calluses (p < 0.046; OR 2.83) and claw toes (p < 0.041; OR 3.18). And among men, the risk factors for diabetic foot were insulin use (p < 0.008; OR 5.22), presence of sensory comorbidities (p < 0.007; OR 5.0), ulcers (p < 0.001), numbness (p < 0.002; OR 6.6) and stiffness in the feet (p < 0.009; OR 5.44).

CONCLUSION

The factors associated with the development of diabetic foot were presented differently in women and men, so a targeted and more specific preventive approach is required.

Contacting dropouts from type 2 diabetes care in public primary health care: description of the patient population

OBJECTIVE

To characterize dropouts from type-2 diabetes (T2D) care in communal primary health care.

DESIGN

An observational study.

SETTING

In a Finnish city, patients with T2D who had not contacted the public primary health care system during the past 12 months were identified with a computer based search and contacted by a trained diabetes nurse.

SUBJECTS

Dropouts from T2D treatment.

MAIN OUTCOME MEASURES

Demographic factors, laboratory parameters, examinations, medications, and comorbidities.

RESULTS

Of the patients with T2D, 10% (n = 356) were dropouts and 60% of them were men. Median HbA1c was 6.5 (QR for 25% and 75%: 6.0, 7.7) %, (45 [42,61] mmol/mol). Of the dropouts, 14% had HbA1c ≥ 9.0% (75 mmol/mol), and these patients were younger than the other dropouts (mean age 54.4 [SD 10.8] years vs. 60.6 [9.4] years, p < 0.001). Median low-density lipoprotein (LDL) cholesterol level was 2.8 (QR 2.1, 3.4) mmol/l. Median systolic blood pressure (BP) was 142 (QR 130, 160) mm Hg. Median diastolic BP was 86 (78, 94) mm Hg. Of the dropouts, 83% had comorbidities and 62% were prescribed metformin as a treatment.

CONCLUSIONS

Ten percent of T2D patients were dropouts of whom those with a poor glycaemic control were younger than the other dropouts. BP and LDL cholesterol concentrations were non-optimal among the majority of the dropouts. Metformin was prescribed less frequently to the dropouts than is usual for T2D patients. The comorbidities were equally common among the dropouts as among the other T2D patients. KEY POINTS   Which kinds of patients are dropouts from type-2 diabetes care is not known. • One-tenth of the patients with T2D were dropouts and they generally had good glycaemic control. • Blood pressure and LDL cholesterol concentrations were non-optimal among the majority of the dropouts. • Fourteen percent of these dropouts had HbA1c > 9% (75 mmol/mol) and they were more often younger than the other dropouts.

Differences in foot self-care and lifestyle between men and women with diabetes mellitus

OBJECTIVE

to investigate differences with regard to foot self-care and lifestyle between men and women with diabetes mellitus.

METHOD

cross-sectional study conducted in a sample of 1,515 individuals with diabetes mellitus aged 40 years old or older. Poisson regression models were used to identity differences in foot self-care deficit and lifestyle between sexes, adjusting for socioeconomic and clinical characteristics, smoking and alcohol consumption.

RESULTS

foot self-care deficit, characterized by not regularly drying between toes; not regularly checking feet; walking barefoot; poor hygiene and inappropriately trimmed nails, was significantly higher among men, though men presented a lower prevalence of feet scaling and use of inappropriate shoes when compared to women. With regard to lifestyle, men presented less healthy habits, such as not adhering to a proper diet and taking laboratory exams to check for lipid profile at the frequency recommended.

CONCLUSION

the nursing team should take into account gender differences concerning foot self-care and lifestyle when implementing educational activities and interventions intended to decrease risk factors for foot ulceration.

OBJETIVO

investigar as diferenças no autocuidado com os pés e no estilo de vida entre mulheres e homens diabéticos.

MÉTODO

estudo transversal realizado com uma amostra de 1.515 diabéticos com 40 anos ou mais. Foram utilizados modelos de regressão de Poisson para identificar diferenças entre os sexos na prevalência de déficit de autocuidado com os pés e no estilo de vida, ajustando-se por características socioeconômicas, clínicas, tabagismo e alcoolismo.

RESULTADOS

a prevalência de déficit de autocuidado com os pés, caracterizada por baixa frequência de secagem dos espaços interdigitais; da não avaliação periódica dos pés; do hábito de andar descalço; de higiene insatisfatória e corte inadequado de unhas foi significativamente maior entre os homens. Contudo, eles apresentaram menor prevalência na prática de escaldar os pés e no uso de calçados inadequados em comparação às mulheres. Em relação ao estilo de vida, os homens também apresentaram comportamentos menos saudáveis pois tem significativamente menor controle alimentar e não realizam os exames laboratoriais referentes ao perfil lipídico na frequência recomendada.

CONCLUSÃO

considerar as diferenças de gênero no autocuidado com os pés e no estilo de vida permite à equipe de enfermagem direcionar atividades educacionais e intervenções nos fatores de risco à ulceração dos pés.

OBJETIVO

investigar las diferencias en el autocuidado de los pies y estilo de vida entre mujeres y hombres diabéticos.

MÉTODO

estudio transversal realizado con una muestra de 1.515 diabéticos con 40 años o más. Fueron utilizados los modelos de regresión de Poisson para identificar diferencias entre los sexos en la prevalencia de déficit de autocuidado de los pies y estilo de vida, ajustándolas por características socioeconómicas, clínicas, tabaquismo y alcoholismo.

RESULTADOS

la prevalencia de déficit de autocuidado de los pies, caracterizada por: baja frecuencia de secado de los espacios interdigitales; falta de evaluación periódica de los pies; hábito de andar descalzo; higiene insatisfactoria; y, corte inadecuado de uñas, fue significativamente mayor entre los hombre. Sin embargo, estos presentaron menor prevalencia en la práctica de escaldar los pies y en el uso de calzados inadecuados en comparación a las mujeres. En relación al estilo de vida, los hombres también presentaron comportamientos menos saludables ya que tienen significativamente menor control alimentario y no realizan los exámenes de laboratorio referentes al perfil lipídico, con la frecuencia recomendada.

CONCLUSIÓN

considerar las diferencias de género en el autocuidado de los pies y en el estilo de vida, le permite al equipo de enfermería realizar actividades educacionales e intervenciones en los factores de riesgo para la ulceración de los pies.

Gender Differences in Risks of Coronary Heart Disease and Stroke in Patients with Type 2 Diabetes Mellitus and Their Association with Metabolic Syndrome in China

Coronary heart disease (CHD) and stroke are common complications of type 2 diabetes mellitus (T2DM). We aimed to explore the differences in the risks of CHD and stroke between Chinese women and men with T2DM and their association with metabolic syndrome (MS). This study included 1514 patients with T2DM. The Asian Guidelines of ATPIII (2005) were used for MS diagnosis, and the UKPDS risk engine was used to evaluate the 10-year CHD and stroke risks. Women had lower CHD risk (15.3% versus 26.3%), fatal CHD risk (11.8% versus 19.0%), stroke risk (8.4% versus 10.3%), and fatal stroke risk (1.4% versus 1.6%) compared with men with T2DM (p < 0.05-0.001). The CHD risk (28.4% versus 22.6%, p < 0.001) was significantly higher in men with MS than in those without MS. The CHD (16.2% versus 11.0%, p < 0.001) and stroke risks (8.9% versus 5.8%, p < 0.001) were higher in women with MS than in those without MS. In conclusion, our findings indicated that Chinese women with T2DM are less susceptible to CHD and stroke than men. Further, MS increases the risk of both these events, highlighting the need for comprehensive metabolic control in T2DM.

Gender-related differences in cardiometabolic risk profile of Japanese patients with diabetes

BACKGROUND

In patients with diabetes, cardiovascular disease is an important determinant of their prognosis. The aim of this study was to compare cardiometabolic risk factors in Japanese women and men with diabetes.

METHODS

The subjects were Japanese patients with diabetes, and age-matched female and male subject groups with the ratio of number of women to that of men being 1 to 2 were prepared (total number of subjects, 1,707; mean age, 53.8 years). Cardiometabolic risk factors were compared in women and men.

RESULTS

Waist-to-height ratio was significantly higher in the female group than in the male group, while body mass index was not significantly different in the two groups. Diastolic blood pressure and pulse pressure were significantly lower and higher, respectively, in the female group than in the male group, while systolic blood pressure was not significantly different in the two groups. Low-density lipoprotein cholesterol and log-transformed triglycerides were significantly higher and lower, respectively, in the female group than in the male group. Log-transformed lipid accumulation product was significantly higher in the female group than in the male group. Odds ratios (with their 95% confidence intervals [95% CIs]) of gender (women vs. men) were 2.00 [95% CI: 1.48 to 2.69] for abdominal obesity, 1.48 [95% CI: 1.15 to 1.91]) for high pulse pressure, 1.48 [95% CI: 1.13 to 1.92] for high low-density lipoprotein cholesterolemia, 1.77 [95% CI: 1.32 to 2.37] for low high-density lipoprotein cholesterolemia, and 1.68 [95% CI: 1.28 to 2.21] for metabolic syndrome diagnosed by the International Diabetes Federation criteria. Thus, women had significantly higher odds for these cardiovascular risk factors than did men.

CONCLUSION

The results suggest that Japanese women with diabetes have a more adverse cardiometabolic profile than do men.

Sex differences in type 2 diabetes: focus on disease course and outcomes

BACKGROUND

Women with type 2 diabetes (T2D) are less likely to reach the goals for hemoglobin A1c compared with men, and have higher all-cause mortality. The risk of cardiovascular disease is elevated among both men and women with T2D, however, the risk has declined among men over recent years while it remains stationary in women. Reasons for these sex differences remain unclear, and guidelines for diabetes treatment do not differentiate between sexes. Possible causes for varying outcome include differences in physiology, treatment response, and psychological factors. This review briefly outlines sex differences in hormonal pathophysiology, and thereafter summarizes the literature to date on sex differences in disease course and outcome.

METHODS

Systematic searches were performed on PubMed using "sex", "gender", and various glucose-lowering therapies as keywords. Earlier reviews are summarized and results from individual studies are reported. Reference lists from studies were used to augment the search.

RESULTS

There is an increased risk of missing the diagnosis of T2D when screening women with only fasting plasma glucose instead of with an oral glucose tolerance test. The impact of various risk factors for complications may differ by sex. Efficacy and side effects of some glucose-lowering drugs differ between men and women. Men with T2D appear to suffer more microvascular complications, while women have higher morbidity and mortality in cardiovascular disease and also fare worse psychologically.

CONCLUSION

Few studies to date have focused on sex differences in T2D. Several questions demand further study, such as whether risk factors and treatment guidelines should be sex-specific. There is a need for clinical trials designed specifically to evaluate sex differences in efficacy and outcome of the available treatments.