1.Results of a study on the prevalence of pulmonary tuberculosis among people with type 2 diabetes mellitus
Tsetsegtuya B ; ; Oyuntuya T ; ; Narantuya G ; Ulzii-Utas A ; Davaadulam D ; Purevsuren B ; Bolortsetseg G ; Aigul U ; Lkhagvajav N ; Ermek J ; Tsolmon B ; Oyuntugs B ; Naranzul D ; Mitarai S ; Buyankhishig B ; Sarantuya J
Mongolian Journal of Health Sciences 2025;90(6):135-140
Background:
The continuous annual increase in the prevalence of diabetes mellitus (DM) poses significant challenges not
only within our nation but also globally in the control and management of tuberculosis.
Aim:
This study aimed to determine the incidence of pulmonary tuberculosis among individuals with type 2 diabetes
mellitus (T2DM) residing in six central districts of Ulaanbaatar and to investigate associated factors.
Materials and Methods:
A cross-sectional study design was employed. Participants aged 18 years and older diagnosed
with T2DM and receiving care at endocrinology clinics in six central districts of Ulaanbaatar were selected using systematic random sampling. Presumptive TB cases were identified through a structured questionnaire and chest X-ray. Sputum
specimens were collected and subjected to smear microscopy and Xpert MTB/RIF assay for tuberculosis detection. Cases
confirmed by laboratory diagnosis, currently undergoing tuberculosis treatment and previously treated cases as per questionnaire data were classified as tuberculosis cases, and prevalence was calculated.
Results:
A total of 1,644 individuals with T2DM were enrolled in the study, of whom 836 (50.9%) were female, with
a mean age of 58 years (range 19–89). The overall prevalence of presumptive TB cases was 10.5% (n=172; 95% CI,
9.0–12.0). Among 112 suspected cases from whom sputum samples were obtained, 10 (8.9%; 95% CI, 4.9–15.7) were
laboratory-confirmed for M.tuberculosis. Notably, 7.2% (6 cases; 95% CI, 3.4–14.9) of asymptomatic individuals with
abnormal X-ray findings were diagnosed with tuberculosis. According to questionnaire responses, 9 participants (0.5%;
95% CI, 0.3–1.0) were undergoing tuberculosis treatment, and 53 (3.2%; 95% CI, 2.5–4.2) reported a previously treated
TB cases. The overall prevalence of tuberculosis among individuals with diabetes was 4.4% (n=72; 95% CI, 3.5–5.5).
Stratification by age and sex revealed a significantly higher prevalence among males (5.9%; n=48; 95% CI, 4.5–7.8)
compared to females (2.9%; 95% CI, 1.2–4.2) (p=0.002), indicating a twofold increased risk of tuberculosis in males.
Although no statistically significant differences in tuberculosis prevalence were observed across age groups (p>0.05), a
declining trend in prevalence with older age was noted.
Conclusion
The prevalence of tuberculosis among individuals with type 2 diabetes was 4.4% (n=72; 95% CI, 3.5–5.5),
with a significantly higher rate in males (p=0.002) and a decreasing trend with increasing age. Among asymptomatic
individuals exhibiting radiographic abnormalities, 7.2% were confirmed to have tuberculosis via laboratory testing
2.Study results of the prevalence for thyroid disorders
Tsegmed S ; Norolkhoosuren B ; Otgonbayar S ; Tsientcogzol D ; Lkhagvajav B ; Buanzaya B ; Enkhtuya N ; Anand U ; Bolormaa N ; Narantuya D ; Unursaikhan S
Mongolian Medical Sciences 2022;199(1):15-23
Introduction:
Among the endocrine, nutritional, and metabolic disease and thyroid disorders occupy a significant place. According to the World Health Organization, 8-18% of the world’s population suffer from thyroid disorders. In our country, no research on the prevalence of the disorders has been conducted before, and this research methodology was discussed by the Scientific committee of the National Center for Public Health and was approved by resolution No.156 of the Ethics Committee of the Ministry of Health on 2020.
Materials and Methods:
In order to determine the prevalence
of thyroid disease in the country, we collected the actual number of thyroid disorders registered in 9 districts of the capital city and 330 soums of 21 aimags for a total of 10 years from 2011 to 2020. The prevalence of thyroid disorders was mapped using Arc view and GIS software.
Results
Endocrine, nutritional and metabolic disease account for 2.3% of all outpatient cases. Endocrine, nutritional, and metabolic disease accounted for an average of 168.3 per 10000 population over the past 10 years, and thyroid disorders accounted for 45 or 26.7% of endocrine, nutritional, and metabolic diseases. Thyroid disorders are highest in people aged 40-49 years.
Thyroid toxicity is the most common type of thyroid disease in Mongolia, accounting for 56.2%, with an average of 17.2 per 10000 population in 2011-2020. However, iodine deficiency-related thyroid disease accounts for 5.5% of all thyroid disorders, with an average of 2.5 per 10000 population in 2011-2020. In 2011, it decreased by 2.2 per 10000 population, and by 2020, it decreased by 0.2 per thousand to 2.0, but in the last 5 years, it has increased by an average of 2.4 per 10,000 population, and in the last 5 years it has increased by 0.2 per thousand, or 2.6 per 10,000 population. Morbidity is high in the Khangai and Central regions.
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