Lung function, blood pressure, heart rate variability,inflammation
Conditions
Interventions
Copy shop employees:air purifier
Healthy volunteers:air purifier
Sponsors
Peking University School of Public Health
Eligibility
Sex/Gender
All
Age
20 Years to 45 Years
Inclusion criteria
Inclusion criteria: 1. Copy shop employees: (1) Print and copy shop employees who have been in the business for more than one year; (2) 20~45 years old; (3) Informed and agreed to the entire research process. 2. Healthy volunteers: (1) College students who are over 18 years old; (2) Good health, no respiratory system, cardiovascular system and other diseases that seriously damage health; (3) BMI < 28kg/m2; (4) Know and agree to cooperate with the entire research process.
Exclusion criteria
Exclusion criteria: (1) Copy shop employees: Exclude patients suffering from diseases that seriously damage their health, such as diabetes, respiratory diseases, cardiovascular diseases, allergies, and past lung surgery history, as well as patients taking drugs that may affect heart rate or lung function; (2) Healthy volunteers: Exclude those who have a history of smoking or suffer from diseases that seriously damage their health, such as diabetes, respiratory diseases, cardiovascular diseases, allergies, and previous lung surgery history, as well as taking drugs that may affect heart rate or lung function patient.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| lung function;blood pressure;heart rate variability; | — |
Secondary
| Measure | Time frame |
|---|---|
| inflammatory factor;human peripheral blood lymphocyte micronucleus; | — |
Countries
China
Contacts
Public ContactWang Yun
Peking University
Outcome results
None listed