Dietary intake and physical activity of elementary school children in ha nam and dien bien provinces in 2020

MINISTRY OF EDUCATION AND MINISTRY OF HEALTH TRAINING HANOI MEDICAL UNIVERSITY PHAM DUY THANI1 THE PREVALENCE AND SOME ASSOCIATED FACTORS OF SILICOSIS AMONG EMPLOYEES WORKING IN ON E FACTORY IN THAI NGUYEN PROVINCE,2020 Specialization: Preventive Medicine Code: 52720103 Course 2015 2021 THESIS OF GRADUATION MEDICAL DOCTOR Mentor: Ass Prof Le Illi Tlianb Xu an Hanoi- Year2021 nrdkn «s> ■> ACKNOWLEDGE KENT I am indebted to my tutor Ass Prof Le Till Thanh Xuan from the Department of Occupational Health School of Preventive Medicine and Public Health Hanoi Medical University for her exemplary guidance, monitoring and constant encouragement throughout the course of this thesis I am also indebted to members of Department of Occupational Health allowing me to use a parr of data as my thesis I also wish to take this opportunity to express a deep sense of gratitude to the Board of Directors Training Department of School of Preventive Medicine and Public Health for their cordial support, valuable information and guidance which helped me in completing litis task through curious stages I would like to express my deepest thanks to the Maraging Board Department of Training, Hanoi Medical University who had created a favorable and wonderful environment in the sclfcjol for the past years wish to thank all the teachers in the Department of Occupational Health School of Preventive Medicine and Public Health Hanoi Medical University for their valuable information provided by them in their respective fields I am grateful for their cooperation during the period of my assignment Lastly I would like to express my deepest thanks to my loving family relatives and friends for their constant encouragement without them this thesis would not be possible Hanoi, May 2021 Student Pham Duy • Thanh SOCIALIST REPUBLIC OE VIETNAM Independence - Freedom Happiness CONFIRMATION To: - Management Board of Hanot Medical University - Department of Undergraduate Trailing Management and Department of Student Affairs Hanoi Medical University - Institute for Preventive Medicine and Public Health Hanoi Medical University - Department of Occupational Health Hanoi Medical University - Examination Committee for Graduation Thesis 2020-2021 I here by declare that this research was originally done by myself and was a part of national research on silicosis where the principal investigator approved for my participation The data handbag and analysis were objectively completed with honesty The results of this study have not been published in any document Hanot May 2021 Student Pham Duy Thanh LIST OF ABB RELATIONS ILO International Labor Organization WHO Worid Health Organization -w ã* CN ôG TABLE OF CONTENTS CONFIRMATION ABSTRACT INTRODUCTION CHAPTER 1: LITERATURE REMEW 1.1 Concepts associated with rhe employees working environment and & ãããằ-* ••••••••••••••• •( aae a at a •• •• 1.1.1 I he employees - ttatttataatatatôtatằaa(aaaaaaaaaaaaaaaaaeaaaaaaaằ< loiiiaaaaMiaMiaiaaateaaaaaaaiaaaaaaaitaaaiiaato 1.12 Working environment aaeta ãã a ttoitMitaatait ã ãããôããããããããããã>ã a*ae aãa3 113 Dust in labor 1.4 Silica dust 115 Occupational diseases 1.1 j6 Silicosis 1.1.7 Diagnosis the silicosis 1.1.8 x-ray images of the silicosis I I Respiratory flinction evaluation parameters 1.2 The prevalence in silicosis among employees exposed to silica dust 10 1.2 Global 10 1.22 In Vietnam 13 1.3 Some factors associated with the prevalence of silicosis among employees exposed to silica dust 14 1.3.1 Global 15 1.32 In Vietnam 16 1.4 Oveniew of the srndv sites CHAPTER 2: RESEARCH SUBJECTS AND METHODOLOGY 18 18 «s> ■> 2.2 Research subjects 19 2.3 Research nines 20 *1 • ReseaI c 11 design a a a a BM •M a.0 2.5 Sample size and sampling - 20 2.6 Variables and indicators 20 2.7 Tool and technique for data collection - 24 2.8 Potential Errors and solutions 27 2.9 Data entry and analysis 27 2.10 Research ethical consideration 28 CH APTER 3: FINDINGS AND RESULTS - 29 3.1 Demographic characteristics of study participants 29 The prevalence of silicosis among employees working in Coc factory in ỉ ỉ ^^gu\*en Ờ .a 31 3.3 Some factors associated with tlie prevalence of silicosis working in Coc factory in Thai Nguyen 2020 — 36 CH APTER 4; DISCX'SION——~ 43 The prevalence of silicosis among employees working in Coc factory in Thai Nguyen 2020 43 4.2 Some factors associated with the prevalence of silicosis among employees working in Coc factory in Thai Nguyen 2020 — 48 CONCLUSION _ 50 RECOMMENDATION • •• •••»•»» *• w • »• • ••• •• REFERENCES APPENDIX APPENDIX APPENDIX APPENDIX «s> ■> »wwwwww»nwmimwn 51 LIST OF TABLES Table 2.1 List of variables and indicators among employees of Coc factory in 2020 20 Table 3.1 General characteristics of research subjects .- 29 Table 3.2 Percentage of employees diagnosed with silicosis and received occupational disease book previously 31 Table 3.3 The prevalence of silicosis among employers 31 Table 3.4 Peicentage of employees with decreased respirator}.’ function 32 Table 3.5 The degree of decline in FVC and FEV1 among employees 33 Table 3.6 Rate of respiratory dysfunction in employees — 33 Table 3.7 Level of damage on chest X-ray of employees according to ILO classification Table 3.8 The rate of enỊÌoyees using masks with tire prevalence of silicosis 34 Table 3.9 The association between tire prevalence of silicosis and the employees’s gender 36 Table 3.10 The association between the prevalence of silicosis and the age group of employees - _ 36 Table 3.11 The association between the prevalence of silicosis and the occupational age oftire employees - 37 Table 3.12 The association between prevalence and the employees's smoking history 37 Table 3.13 The association between prevalence of silicosis and the employees’s history of respiratory disease .38 Table 3.14 The association between pievalence of silicosis and accessing information of silicosis among employees _ 38 Table 3.15 The association between prevalence of silicosis and knowing health services among employees 39 Table 3.16 The association between prevalence of silicosis and health status anx> ng employees 39 Table 3.17 The association between prevalence of silicosis and attitude to the dangerous of silicosis among employees _ 40 Table 3.18 The association between prevalence of silicosis and some associated factors (multivariate analysis) -w •* CN «G 40 LIST OF FIGI RES Figure2.1: Study location Figure 2.2: Metallurigical coke and steel making process - 19 F igure 3.1 Rate of using various types of masks among employees Figure 32 Ftequencv using masks among employees -w ã* CN ôG - 35 35 .Abstract Silicosis is an occupational lung disease that causes lung fibrosis, progressive and iiTeveisibte in workers who inhale free silica dust Coc factory is a manufacturing industry that also generates a lot of silicon dust, which significantly affecting the health of employees, especially problems related to occujMtional pulmonary dust respiratory disease Therefore, the health protection and prevention of occupational diseases for employees is very necessary We conduct the tope ’ The prevalence and some associated factors of silicosis among employees working in one factory in Thai Nguyen province 2020* with two following specific objectives; identify ing the prevalence of silicosis among employees and analysing some factors associated with the prevalence of silicosis among employees working in Coc factory in Thai Nguyen province 2020 A cross-sectional study was applied All employees of Coc factory were working directly in the production lines matching with inclusion criteria as above All qualified employees to participate ill tile research, agreed to participate in the study and fully examined the research items were recruited In totaL we selected 336 workers among 341 employees of the company at the study’ time .After analysing, tile prevalence of silicosis in workers at Coc Factory in Thai Nguyen in 2020 was 10.1% Gender was the statistically significant factor related IO silicosis of workers The prevalence of silicosis in male workers was 4.32 times higher tlian tliat of female workers (95% Cl was 1.60 - 11.6) When analyzing multivariate regression, the rate of silicosis in male workers was 3.14 times higher than that of female workers (95% CI was 1.05-1.24), the comparison was statistically significant with p