Даваа–Баасан 08:30–20:00 · Бямба 09:00–16:00
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    Lead Hair Level Impact on Mongolian Children with Attention Deficit Hyperactivity Disorder
    Background: High-prevalence disorders among children are attention-deficit/ hyperactivity disorder (ADHD) and lead exposure. The purpose of this study was to find out the relationship between ADHD symptoms and hair lead levels and neurocognitive function among Mongolian children. Methods: This was the case study to investigate the relationship between hair lead and ADHD in Mongolian school kids. We conducted a pair-matching case-control study with 30 ADHD cases and 30 non ADHD controls for 7 - 12 years of age school children, based on the same age, and sex. Recruitment process was conducted from June 2018 to December 2019. The case and control study children were systematically selected by structured diagnostic interviews, including caregiver interviews based on the Diagnostic and Statistical Manual of Mental Disorders, 4th ed (DSM-IV). Results: The average level of hair lead of the ADHD group was 1.45 ± 2.93 ppm and the control group’s lead level was 0.7 ± 1.59 ppm. We found ADHD-Combined (ADHD-C) patients showed the highest lead levels (p −0.329 and −0.242, for original and log10 transformed, p < 0.001). The lead was linked with vulnerability to ADHD and symptom severity among those school-age children. Conclusions: The child hair lead exposure is one of the risk factors of the development of ADHD and decreasing FSIQ (Full Scale Intelligent Quotient) and EQ level of children and linked with susceptibility to ADHD and symptom severity in school-age children.
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    Knowledge, Attitudes, and Practices (KAP) Regarding Hepatitis B Vaccination among Healthcare Workers in Mongolia
    (Scientific Research Publishing, 2023-01-01) ;
    Burmaajav Badrakh
    ;
    ;
    Byambaa Tumurbat
    ;
    Badamjav Amgalan
    Background: Mongolia is no exception and experiencing the burden of HBV among the population. In the last decade, the prevalence of HBV among the relatively healthy population of Mongolia has ranged between 11.8 percent and 10.6 percent, and acute cases are between 1.7 and 1.1 per 10,000 people. We aimed to determine healthcare workers (HCWs) knowledge, attitude, and practices regarding HBV prevention compared to vaccination coverage. Methods: This cross-sectional study was conducted among HCWs from the selected sites through multi-stage sampling. The study involved 1135 HCWs, including medical doctors, nurses, clinicians in both surgical and medical specialties, laboratory technicians, and other staff working in all departments from primary and referral levels in 36 healthcare facilities in two urban and four rural provinces of Mongolia. Participants who consented to the study completed a standardized self-administered questionnaire between July and Dec 2019. Results: Most participants (82.0%) were born before 1992 or before starting a birth vaccination against HBV in Mongolia. The mean age of the participants was 38 years and the participants’ median employment year in the health sector was seven years. Most participants were medical doctors (29.1%) and nurses (28.0%). Five questions explored HCWs’ knowledge about hepatitis B virus infection and prevention, and the correct response ranged between 15.6% and 95.4%. 2.8% of the respondents answered five questions correctly. Men, those with higher levels of education, those over the age of 30, soum family health center HCWs, and doctors and senior medical professionals answered many questions correctly, which is statistically significant. 98.9% of respondents believe that HCWs should vaccinate against HBV. The younger the age (%), management professionals, and service staff are confident in vaccines. A significant difference between age groups, perception of HBV infection, and formal attendance to the official training positively relate to vaccination coverage. Specially survey respondents who knew about the adverse effects of overdosing, learning about total doses of the vaccine, and the effectiveness of the hepatitis B vaccine were more tent to have full doses of the HBV vaccine. Knowledge and working conditions are increasing factors in receiving full doses of the HVB vaccine. Conclusion: The overall knowledge of HBV and its vaccination is fair among the HCWs; however, there is a need to intensify the training on some of the details and increase the training frequency at the workplace. Attitude and practice on infection protection and vaccination are still essential to be promoted among the HCWs. The low level of vaccination coverage is relevant to the level of KAP among the HCWs of the country.
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    Effect of Mycoplasma hominis and cytomegalovirus infection on pregnancy outcome: A prospective study of 200 Mongolian women and their newborns
    (2017)
    Otgonjargala, Byambaa
    ;
    Becker, Kathrin
    ;
    ; ;
    In Mongolia, diagnostic tests for the detection of the sexually transmitted mycoplasmas, ureaplasmas, Herpes simplex virus (HSV), and cytomegalovirus (CMV) are currently not routinely used in clinical settings and the frequency of these STIs are enigmatic. The prevalence of these STI pathogens were prospectively evaluated among 200 Mongolian pregnant women and their newborns and correlated with pregnancy outcome. TaqMan PCRs were used to detect bacterial and viral STI pathogens in pre-birth vaginal swabs of the pregnant women and in oral swabs of their newborns. A standardized questionnaire concerning former and present pregnancies was developed and linear regression analysis was used to correlate pathogen detection with pregnancy outcome. Ureaplasmas were the most prevalent of the tested pathogens (positive in 90.5% positive women and 47.5% newborns), followed by mycoplasmas (32.5% and 7.5%), chlamydia (14.5% and 7.5%), trichomonas (8.5% and 4.0%) and gonococcus (0.5% and 0%). CMV was found in 46.5% of the pregnant women and in 10.5% of their newborns, whereas HSV-2 was detected in only two mothers. Multiple regression analyses indicate that colonization of the mothers with U. urealyticum, M. hominis, T. vaginalis or CMV is associated with transmission to newborns and that transmission of M. hominis or CMV from Mongolian pregnant women to offspring is associated with reduced neonatal length and gestational age. Thus, diagnostic tests for their detection should be implemented in the clinical settings in Mongolia.
    Scopus© Citations 12
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    Health Risk Assessment of Volatile Organic Compounds for Children in Indoor Air, Ulaanbaatar, Mongolia
    (Springer Science and Business Media LLC, 2023)
    Otgonbyamba, Oyun-Erdene
    ;
    Ganbat, Gantuya
    ;
    Khuyag, Ser-Od
    ;
    ;
    Ganbold, Bilguun
    Scopus© Citations 8