Contribution of the authors to this work: Polunina NV — research design, analysis and interpretation of data of the incidence, editing of a manuscript; Timerzyanov MI — research planning, data collection, statistical analysis, drafting of a manuscript; Milushkina OYu — analysis of literature, sanitary estimation of noise and vibration levels, editing of a manuscript; Pivovarov YuP — estimation of illumination level and microclimatic parameters in the work ares, drafting of a manuscript; Polunin VS — analysis of personal protection equipment use, editing of a manuscript; Al Sabunchi AA — analysis of questionnaire data and data of the incidence, editing of a manuscript; Kozyreva FU — analysis of literature, sanitary estimation of dust and chemical pollution factors, preparation of a manuscript for publication; Korolik VV — interpretation of data of classes of working conditions and stress classes, editing of a manuscript.