Data on evolutionary relationships between hearing reduction with history of disease and injuries among workers in Abadan Petroleum Refinery, Iran.

The present work examined data obtained during the analysis of Hearing Reduction (HR) of Abadan Petroleum Refinery (Abadan PR) workers of Iran with a history of disease and injuries. To this end, all workers in the refinery were chosen. In this research, the effects of history of disease and injury including trauma, electric shock, meningitis-typhoid disease and genetic illness as well as contact with lead, mercury, CO2 and alcohol consumption were evaluated (Lie, et al., 2016) [1]. After the completion of the questionnaires by workers, the coded data were fed into EXCELL. Statistical analysis of data was carried out, using SPSS 16.

Specifications Table

In this paper, the effects of disease and injury history including trauma, electric shock, meningitis-typhoid disease and genetic illness, as well as contact with lead, mercury, CO and alcohol consumption on accelerating hearing reduction were studied.

Value of the data

Data describe those factors which affect the acceleration of hearing reduction among which are useful for promoting the workers' education in order to prevent this complication.

Due to the importance of the relationship between hearing reduction with history of diseases and injuries among petroleum refinery workers, these factors are discussed in this article.

The results showed that hearing reduction can be decreases the efficiency of workers.

The results of this study can be used to develop a prevention program to decrease hearing reduction among the workers of petroleum refinery.

Results are also important for workers with hearing reduction especially those workers who were detected in this study.

Data

The dataset of this article provides information on the relationships between hearing reduction with history of disease and injuries among workers in Abadan Petroleum Refinery, Iran. Table 1 represents demographic characteristics of Abadan Petroleum Refinery workers of Iran in 2016. Table 2 shows the data of accelerating factors of hearing reduction among workers of Abadan PR.

Table 1

Demographic characteristics of pregnant workers in Abadan petroleum refinery.

Parameter	Characteristics	Number (In percent)
Gender	Male	283 (97.25%)
	Female	8 (2.75%)
Age group	15–24	19 (6.53%)
	25–34	90 (30.94%)
	35–44	125 (42.95%)
	45–55	45 (15.46%)
	More than 55	12 (4.12%)
Years of work experience	1–5 years	91(31.3%)
	5 years and more	200(68.7%)

Table 2

Ranking of factors affecting the accelerating hearing reduction in workers in Abadan petroleum refinery based on their importance.

Factors	Number	Percent
History Trauma	26	8.93
History Electric Shock	6	2.06
Meningitis-Typhoid Disease	17	5.84
Genetic Illness	12	4.12
Contact with Lead, Mercury	12	4.12
Contact with CO2	6	2.06
Alcohol Consumption	14	4.81

Experimental design, materials and methods

Description of Study area

Petroleum Refinery of Abadan was selected for the purpose of the study. Abadan with a population of 300,000 people is one of the metropolitan cities of Khuzestan province [2]. Abadan is Located in the south of Khuzestan province, southwest of Iran (see Fig. 1). Khuzestan province has a hot and semi-humid climate with long summers and short winters [3], [4].

Fig. 1

Location of Abadan in the southwest of Iran.

Design

291 workers of Abadan petroleum refinery participated in this study. A questionnaire was constructed by the researcher based on the risk factors adopted from Williams’ Obstetrics and Gynecology (based on the risk factors adopted from Williams’ Obstetrics and Gynecology),which comprised the demographic data (e.g. age, sex and job experience) and questions related to the causes and effective factors of the acceleration of hearing reduction, which included history of some diseases and injuries (trauma, electric shock, meningitis-typhoid disease and genetic illness), contact with lead, mercury, CO2 and alcohol consumption [1], [5]. After that, the collected data were coded and entered into SPSS version 16. Data analysis was performed using SPSS-16. All risk factors were taken into account. Data were analyzed using descriptive statistics.

Subject area	Medicine, clinical research
More specific subject area	Risk factors accelerating hearing reduction
Type of data	Table, figure
How data was acquired	Observation hearing reduction assessment of the workers and researcher-made questionnaire analysis
Data format	Raw, analyzed, descriptive data
Experimental factors	– Sample consisted of Abadan petroleum refinery workers. – After selection of the workers for the study, the researcher-made questionnaires including demographic data as well as the relationship between hearing reduction with history of diseases and injuries were completed. – In this paper, the effects of disease and injury history including trauma, electric shock, meningitis-typhoid disease and genetic illness, as well as contact with lead, mercury, CO2 and alcohol consumption on accelerating hearing reduction were studied.
Experimental features	Hearing reduction is one of the factors which affect the efficiency of workers.
Data source location	Abadan, Iran
Data accessibility	Data are included in this article.