Introduction: In recent years, there is no scientific epidemiological data about prevalence and risk factors of bronchial asthma among population in Mongolia. Goal: The aim of this study was to define some risk factors of bronchial asthma among urban adults. Materials and Methods: 1201 adults were randomly chosen aged over 20 years who lives in different districts of Ulaanbaatar city. The participants were interviewed using a modified questionnaire of “Global Initiative for Asthma” - GINA. Besides demographic data, information on smoking habits and atopic symptoms was collected. Univariate and multivariate logistic regression modeling was performed to calculate odds ratio of various potential risk factors. The lung function of subjects was checked using a spirometry Easyone, calculating the indexes Forced expiratory volume 1sec (FEV1), forced vital capacity (FVC), FEV1/FVC ratio. Results: Of the respondents, 606 were males (50.5%) and 595 were females (49.5%). Asthma was more frequent in female than in male. The prevalence of wheezing and physician-diagnosed asthma was higher in overweight and obese than in normal weight. The BMI was higher in group with wheezing than in group without wheezing (p<0.01). 54% of subjects with bronchial asthma were smokers. The mean value for FEV1 was 2.86±0.85 L and FVC was 3.60±0.94 L in overall and the lung function was lower in smokers than in non-smokers with bronchial asthma. 28.4% of subjects with allergic rhinitis has current asthma, while 11.6% of subjects without allergic rhinitis has asthma (p<0.01). Conclusion: Female sex, advancing age, history of allergic rhinitis, tobacco smoking and body mass index were associated with significantly higher odds of having asthma.

Introduction: According to World Health Organization, air pollution is a major environmental risk to health and is estimated to cause approximately 1.6 million premature deaths worldwide per year. The air pollution of Ulaanbaatar city is rising year after year.Goal: The aim of this study was to define the lung function of adults in Ulaanbaatar.Materials and Methods: 1196 adults were randomly chosen aged over 20 years of Ulaanbaatar city. Of them 238 subjects were excluded because they had at least one of the following: a history of lung diseases including asthma, COPD, pulmonary tuberculosis, lung fibrosis; symptoms of chronic cough, wheeze, or dyspnea; history of thoracic surgery; history of major acute illness in the past 3 months; or a history of respiratory tract infection in the past 4 weeks. Besides demographic data, information on smoking habits was collected. The lung ventilation function of subjects was checked using a spirometry EasyOne, calculating the indexes Forced expiratory volume 1sec (FEV1), forced vital capacity (FVC), FEV1/FVC ratio. Lung function measurements followed a standardized protocol and fulfilled the ATS criteria.Results: Of the respondents, 486 were males (50.7%) and 472 were females (49.3%). There was a negative correlation between each lung function and age (p<0.05). The lung function was significantly lower in female than in male, for FEV1, FVC (male - FEV1 3.66±0.659 L, FVC 4.467±0.716 L, female-FEV1 2.663+0.559 L, FVC 3.237+0.586 L). In overall, FVC, FEV1 was decreased by 34.5, 37.2 percent, respectively compared with European LLN value.Conclusion: The mean value for FEV1, FVC, FEV1/FVC ratio was 3.17±0.78 L, 3.86+0.89 L and 82.02±6.75 % in overall, respectively.

BACKGROUND OF STUDY: Not only in developed countries but also in Mongolia it is vital problem to decide how to improve human life’s quality, to make clear the measurement to take, discover human body’s change, aging mechanism and predict from these diseases. The research on herders’ biological aging which is connected to the geography, nature, environment, climate, inhabitant, culture and labor’s specialty hasn’t been done yet. So it causes the basis to write this research. AIMS: Defining the nomadic herder’s biological aging MATERIAL AND METHODOLOGY: All the herders in Gobi-Altai were included in this research. They wereclassified into ages such as 30-39, 40-49, 50-59 and 60-69, and 202 female and 212 male herders were chosen accidentally. The model types of research “Cross-Sectional” method is used for this, the equipment called “Tanita” which is used for measuring body is used for collecting information and also SPSS-22programmis used for producing result. RESULT OF STUDY: 1. 49% of all research participants are male, 51% are female. 2. Herder’s biological aging is 50,4+9,4 and it shows that 6,3 older than calendar ages. 3. Herders’ aging was different for male and female herders. 81,8 percent of the male herders get older very fast whereas 69,4 of female herders get older slowly. CONCLUSION: • Male herder’s aging is 14 years older than womenThe older female and male herders get, the less their difference in their biological age becomes. • The percentage of the herders whose aging is getting fast is 21-26 % older than biological aging of the UB city’s people. • Biological age and sex’s connection (r=0,0001 p=0,00488) between biological age and weight’s index is (r=0,00488, p=0,001) is different and statistical significant.

Background: E-cigarettes were created in China in 2003 and smoke is produced by the transfer of liquids contained within e-cigarettes into proteins. The WHO has warned of the health effects of e-cigarettes and recommended limiting sales. Mongolia imported a total of 2047 e-cigarettes from 2019-2020 and 2.6 million e-cigarettes by 2021. That's because in the school environment, retail outlets are trading in e-cigarettes. Objective: Study of pupil and student knowledge of e-cigarette use and its effects among pupils. Research Methods: In our study, we found 421 students representing 1304 high school students at 6 high schools in Esenbulag, Altai Province, with 12 years of training, The study was conducted by a closed questionnard of 38 students representing 161 students from MSUT, 151 students representing 962 students from 1st to 6th grade, and a total of 670 youth and students. The results of the study were developed with 24 SPSS applications. Results of the study: 71.8% of participants in the study are high school students in general education, 5.7% are MSUT students and 22.5% are MNUMS students. It found that 12.5% of students surveyed and 11.7% of teens said they smoked e-cigarettes, compared with 11% of teens and students who occasionally smoked e-cigarettes. 47-73% of teens and students who smoke began smoking starting in the 10th to 11th grade, with 21.3-45.5% of the factors affecting e-cigarette use attracting friends, 9.5-13.4% responded that they were household smokers, 6.2-18.1% said they were interested in making others look attractive, while 42.5-62.4% said they knew about the harmful effects of e-cigarettes and 46-51.7% were trying to stop e-cigarettes. A study of the source of information on the effects of e-cigarettes found that 40.8-47.9% of people get it from social networks and 14.1-20.4% from TV shows. Conclusions While the vast majority of students and students know about the effects of e-cigarettes, 56.6% of the participants in the overall study smoke e-cigarettes. Information about the harmful effects of e-cigarettes is being taken from social networks by the vast majority of teenagers and young people on campus. Friends have the highest percentage of exposure to e-cigarettes because of the many factors affecting e-cigarettes.