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Objectives: A registry is a vital tool for understanding genetic fields and therapeutic strategies for the treatment of rheumatoid arthritis (RA). In addition, it is valuable in research related to the long-term effect of drugs on patients. Therefore, this study aimed to explain the challenges of RA registry in Iran. Materials and Methods: Using a purposive sampling method, ten rheumatologists were selected as the samples of the current qualitative research. Further, semi-structured interviews were conducted to the saturation level for collecting the data. Finally, the content analysis was performed to collect and name data, as well as to obtain analytic categories and subcategories. Results: The challenges were classified into physical (software and hardware), financial (financing), human (skilled personnel for RA data entry and the tendency of more specialists for medical treatment), and managerial (the lack of referral system and support of Ministry of Health) variables, along with time parameter (the lake of time for health and education). The lack of proper infrastructure, financial limitations, and management challenges were among the most important barriers. Conclusions: The findings showed that RA registry faces many challenges in Iran. In the case of eliminating the existing obstacles, it would be possible to take advantage of effective and useful outcomes in the basic care of patients with RA. [ABSTRACT FROM AUTHOR]

Background: Despite having higher bone mineral density (BMD) values, type 2 diabetes mellitus (T2DM) patients are at increased risk of fracture. Trabecular bone score (TBS) obtained by evaluating bone microarchitecture might be a more accurate factor for determining bone strength in T2DM patients. In this study, we aimed at investigating the mean values of lumbar spine (LS) TBS, LS-BMD, and femoral neck BMD in T2DM patients and controls, as well as the ability of LS-TBS and BMD in distinguishing between T2DM patients and controls., Methods: This case-control study was conducted on 150 patients with T2DM (129 women, 21 men) and 484 controls (424 women, 60 men) in Tehran, Iran. LS-TBS along with femoral neck BMD and LS-BMD was computed using dual-energy X-ray absorptiometry images. Diagnostic accuracy and discriminative capacity of LS-TBS, femoral neck BMD, and LS-BMD between the case and control groups were assessed., Results: T2DM patients showed significantly lower LS-TBS values compared to the control group in the total population and in women. However, in T2DM patients, femoral neck BMD and LS-BMD were found to be significantly higher in the total population and in men, respectively, compared to the control group. Based on area under the curve (AUC) and after adjusting for age and BMI, TBS, LS-BMD, and femoral neck BMD were shown to have the acceptable ability in distinguishing T2DM patients and controls., Conclusion: Besides higher BMD and lower TBS values in T2DM patients compared to controls, a similar acceptable discriminative ability of LS-TBS, LS-BMD, and femoral neck BMD in differentiating between T2DM patients and controls was observed in the total population and in women.