Association between obesity indices and type 2 diabetes mellitus among middle-aged and elderly people in Jinan, China: a cross-sectional study

Abstract

BackgroundThe relationship between obesity and type 2 diabetes mellitus (T2DM) varies with geographical area and race.ObjectivesTo investigate the prevalence of T2DM and the proportion of subjects with undiagnosed T2DM. In addition, to compare the associations between different obesity indices and T2DM for middle-aged and elderly people from six communities in Jinan, China.SettingA cross-sectional study was designed and the study subjects were chosen from blocks which were randomly selected in the 6 communities of Jinan, China in 2011–2012.ParticipantsA total of 3277 residents aged ≥50 years were eligible for this study, but 1563 people were excluded because they did not provide anthropometric data such as height, weight, waist circumference (WC), hip circumference, systolic blood pressure, diastolic blood pressure, fasting plasma glucose, triglyceride (TG), total cholesterol (TC) or information about their current medication use. Hence, 1714 participants were included in the final data analysis.ResultsThe prevalence of T2DM among people aged ≥50 years was 16.6% (19.3% for men and 15.3% for women) and the proportion of patients with undiagnosed T2DM was 32.7%. Compared with the lowest levels of body mass index (BMI), WC, waist-to-hip ratio or waist-to-stature ratio (WSR), the ORs and 95% CIs of the highest levels for men, after adjusting for age, smoking, alcohol drinking, regular exercise, hypertension, TG and TC, were 1.607 (0.804 to 3.210), 2.189 (1.118 to 4.285), 1.873 (0.968 to 3.623) and 2.572 (1.301 to 5.083), respectively, and for women, 2.764 (1.622 to 4.712), 2.407 (1.455 to 3.985), 2.500 (1.484 to 4.211) and 2.452 (1.447 to 4.155), respectively.ConclusionsAmong adults aged ≥50 years in Jinan, China, the best indicator of the relationship between obesity and T2DM is WSR for men and BMI for women, respectively.

Environmental exposure to polycyclic aromatic hydrocarbons, kitchen ventilation, fractional exhaled nitric oxide, and risk of diabetes among Chinese females

“…Thus, reducing exposure to indoor air pollutants and improving indoor air quality by use of house kitchen exhaust fan/hood may reduce the risk of diabetes due to the declining body burden of some indoor air pollutants (such as PAHs and particulate matter) as well as reduction in airway and systemic inflammation. Additionally, we observed a higher prevalence of diabetes in the males rather than the females, which was consistent with the previous studies …”

Impact of Obesity on the Metabolic Control of Type 2 Diabetes: Results of the Turkish Nationwide Survey of Glycemic and Other Metabolic Parameters of Patients with Diabetes Mellitus (TEMD Obesity Study)

“…Women with type 2 diabetes have a 2.5 times greater risk of obesity than men and have a 16.5% prevalence of severe obesity. With these numbers, Turkish women with type 2 diabetes appear to have the highest risk of obesity when compared to other studies from different regions of the world [10, 22, 24-26]. Obesity is already a significant problem in non-diabetic Turkish women as well [16].…”

Factores de riesgo de la Diabetes Mellitus tipo 2 y el Síndrome del Pie Diabético

“…El análisis realizado a partir de los datos extraídos de los estudios nos muestra que los factores de riesgo más prevalentes en la DM tipo 2 son de carácter modificable, ya que seis de los siete factores de riesgo que se hallaron como más prevalentes fueron de tipo modificable entre los que se encuentran: HTA, sedentarismo, IMC elevado, nivel de hemoglobina glicosilada elevado y dieta no saludable (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). Por otro lado, solamente el sexo resultó ser el único factor de riesgo de tipo no modificable que se presentó de forma más prevalente en dos de los 13 estudios (21,22).…”

“…Concretamente, el factor de riesgo más prevalente encontrado fue la HTA, presentándose como más prevalente en cuatro de los 13 artículos, lo que representa que fue el que más afectación obtuvo en personas con DM tipo 2, en un 30,8% de los estudios incluidos en la RS, tal como se observa representado en la Fig.4 [10][11][12][13] . Como segundo factor de riesgo más prevalente se presentó el IMC elevado, que se situó como el factor de riesgo más prevalente en tres de los 13 estudios, lo que representa un 23,1% de los estudios analizados ( Fig.3) (14-16).…”