1. Occupational history of workers: name, gender, age, native place, marriage, education level, hobbies, etc.
2. Occupational hazard exposure history: workers' occupational history, past medical history and occupational hazard exposure history.
3. Occupational health examination results: the results and treatment of previous occupational health examinations.
4, occupational disease diagnosis and treatment, refers to the occupational disease diagnosis and treatment data.