Approval date: 02/07/2020
Starting date: 09/03/2021

main goal:
Determining the effect of personal, occupational and social risk factors on the occurrence of non-communicable diseases among employees of Qazvin University of Medical Sciences.
Sub-goals:
• Determining the physical, mental and social health status of employees of Qazvin University of Medical Sciences
• Determining social factors affecting health including: happiness of social capital, quality of sleep, how to use media, quality of life, life events of employees of Qazvin University of Medical Sciences.
• Determining the quality of life, sleep quality, lifestyle, nutritional status and food security, ergonomic status and occupational stress of employees of Qazvin University of Medical Sciences.
• Determining the prevalence and occurrence of cardiovascular disorders and diseases, chronic respiratory diseases, diabetes, mental disorders, skeletal disorders, and common cancers among the employees of Qazvin University of Medical Sciences.
• Determining the relationship between demographic and socio-economic factors of SES with the prevalence and occurrence of each of the studied non-communicable diseases
• Determining the relationship between social factors affecting health, including happiness, social capital, sleep quality, how to use the media, quality of life, and life events with the prevalence and occurrence of non-communicable diseases under study.
• Determining the relationship between quality of life, quality of sleep, social capital, lifestyle, state of happiness, state of nutrition and food security, ergonomic state, and occupational stress with the prevalence and occurrence of non-communicable diseases under study.
• Establishing scientific communication with the country’s universities and research centers, especially sharing information with demographic and occupational cohort studies to make ecological comparisons.
• Taking advantage of the information and results of the study in order to improve the scientific and research level of Qazvin University of Medical Sciences.
Practical goal:
Based on the results of this study, while identifying the role of each of the risk factors in the occurrence of non-communicable diseases, the necessary information can be provided to the provincial officials to make the necessary plans in order to ensure the health of employees and society.

The studied population is all official, from vice-chancellors and subordinate units, including colleges, hospitals, health and treatment networks.

Considering the potential of the university regarding the available resources and facilities, the sample size of the study is 2500 people. Out of a total of 6,600 employees working in different areas of the university based on the university recruitment list with random stratified sampling of the desired number of people proportional to size from each of the areas of vice-chancellors and subordinate units including faculties, hospitals, Healthcare networks will be selected. The criteria for entering the study will be the type of employment (formal-contractual and contractual), age 25-65 years, being employed until the end of the first phase of the study.

Before starting the data collection, interviewers, which includes doctors, nurses, laboratory science experts, nutritionists, mental health experts, public health experts, and samplers, about the importance of data collection accuracy. And they will see the necessary training on how to do the work. According to the nature of the questionnaires and the conditions of the participants, the questionnaires will be completed in the form of self-report or interview. In order to ensure the quality of the data, data collection will be controlled by those responsible for the implementation of the plan. In order to facilitate data entry in the software, the necessary coordination will be made with the university’s informatics unit. It will be stored in the database at the same time as the data is collected. The identity information of the participants is encrypted in the database and can be decrypted only if necessary. Therefore, the access of all the questioners and scientific collaborators of the project will only be possible to the coding database. The control of the collected data and completion of the missing data will be done daily by the internal manager of the center. Data cleaning and extracting descriptive reports from information will be done every three months.

In this study, follow-up is done using different methods. The purpose of using different sources is to follow the increase in sensitivity so that the least number of samples are lost. The main follow-up methods in this study are: active phone calls with people, contact via SMS and email, follow-up through human resources development management, follow up through colleagues and family members, visiting in person. At the beginning of the study, the subjects are asked to inform the cohort center in case of any hospitalization, death or chronic illness. Follow-up intervals of courses, and months is considered. One of the follow-up steps of the studied people will be to make phone calls with them and ensure their health and presence at work and with family.

Any deaths, hospitalizations, chronic diseases or the desire to migrate in the near future will be recorded. If the person does not answer the phone call in consecutive follow-ups, the person’s workplace or relatives (whose contact numbers are recorded in the questionnaire) will be contacted.

The most important demographic indicators including general characteristics such as: age, sex, education, marital status, occupation, work history, employment status, previous employment records, exact address of residence and workplace, number of children, insurance status, economic-social status based on the state of ownership and possessions owned and used by the individual’s family and himself, job content, quality of sleep, general health, mental health, physical activity, frequency of food consumption, nutritional behaviors, social capital, history of diseases Common and important chronic diseases including diabetes, high blood pressure, ischemic heart disease (including heart attack and heart failure) and angina pectoris, stroke, cancer, depression and anxiety from the person, the name of all the medications that the person is taking at the time of the interview. Blood laboratory information including CBC (hemoglobin, hematocrit, blood cell count separately), fasting blood sugar test and serum lipids (TG, Chol, HDL), urea, creatinine and liver enzymes.