Relationship Between Clinical, Demographic and Socioeconomic Factors with Suicide Ideation; A Cross-sectional Study.

BACKGROUND: Suicide has grown in global prevalence as a public health problem. We aimed to evaluate the association of socioeconomic factors, biochemical and hematologic tests, and suicide ideation. METHODS: In this cross-sectional study, 8267 Iranian adults aged 35 - 65 years old were enrolled. The assessment of suicide ideation was made by the completion of Beck's depression inventory (BDI) questionnaire; according to one specific item on the questionnaire: "have you ever decided to suicide in the past week?" RESULTS: According to our results, 6.9 % of subjects had ideation of suicide. The results showed high levels of FBG, RBC, MCHC, and hs-CRP were associated with suicide ideation. Obese, single subjects, and current-smokers had a higher risk of suicide ideation. CONCLUSION: Increased physical activity, obesity, and smoking are associated with a high risk of suicide ideation; whilst, a high MCHC is related to a low risk of suicide ideation in Iranian adults.

Evaluation of ABO blood group in subjects with CVD risk factors in a population sample from northeastern Iran.

BACKGROUND AND AIMS: The ABO blood group system is a genetic polymorphism which can affect the clearance of von Willebrand factor. We aimed to assess the levels of newer biomarkers of cardiovascular disease (CVD) risk; pro-oxidant-antioxidant balance (PAB), high sensitivity C-reactive protein (hs-CRP) and anti-heat-shock protein27 (anti-Hsp27) antibody titers in subjects with various blood groups (A, B, AB and O) and with or without traditional CVD risk factors. METHODS: The cross-sectional study comprised 6910 subjects. Antigen-antibody agglutination was evaluated by the slide test method for identification of ABO blood groups. RESULTS: Among three markers, only Serum anti-Hsp27 titers significantly differed between the four blood groups and showed the highest and lowest values in AB and O blood groups (0.26 ± 0.22 and 0.23 ± 0.18 OD, respectively; P < 0.05). Serum anti-Hsp27 was higher in individuals with an AB blood group with metabolic syndrome (MetS), dyslipidemia, hypertension (HTN) and obesity and it was lower in subjects with O blood group; though, two other biomarkers, serum PAB and hs-CRP, were not significantly different between the ABO blood groups. However, they were not different among blood groups in participants with or without diabetes mellitus (DM) (P > 0.05). CONCLUSION: Individuals with an AB blood group and high levels of anti-Hsp27 antibody titers may be predisposed to CVDs that can be mediated through the traditional CVD risk factors among middle-aged subjects from northeastern Iran. The fact that differences in anti Hsp27 are only found in the subgroup with other risk factors suggest that the difference between ABO blood groups is a consequence rather than a cause.