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Alcoholism and Drug Addiction/Alkoholizm i Narkomania
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Rozpowszechnienie i czynniki związane z używaniem alkoholu przez studentów nauk medycznych w centralnym Iranie

Mohammad Rezvani Ghalhari
1
,
Ahmad Mehri
2
,
Rouhullah Dehghani
1, 3
,
Ashraf Mazaher Tehrani
4
,
Fatemeh Atoof
5

  1. Department of Environment Health, Kashan University of Medical Sciences, Kashan, Iran
  2. Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  3. Social Determinants of Health (SDH) Research Center, Kashan University of Medical Sciences, Kashan, Iran
  4. Department of Environmental Health Engineering, Hamadan University of Medical Science, Hamadan, Iran
  5. Department of Biostatistics and Epidemiology, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran
Alcohol Drug Addict 2021; 34 (2): 143-152
Data publikacji online: 2021/10/01
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INTRODUCTION

University students are exposed to lifestyle-related risk factors [1]. Although lifestyle and health related behaviours generally develop in early life, these are established throughout college and can negatively impact students health [2]. Choosing any lifestyle in terms of diet, physical activity, alcohol use and smoking not only affects students’ personal lives but also influences the behaviour and lifestyle of related persons [3]. Medical students are more aware of healthy lifestyle components because of their professional status, but there is no guarantee they adopt healthy behaviours [4]. Numerous studies in Iran have shown a lack of proper diet, adequate physical activity, weight management and good sleep patterns among medical students. Furthermore, addiction is a threat to Iranian students’ health [5, 6].
Alcohol consumption is one of the most serious threats to students psychological and physical health [7] and European students drink alcohol more than their peers in other continents [8]. Investigations has shown that about 72% of students drink alcohol on weekends and in the dormitory. Globally, 38% of 18-25 year-old adolescents annually drink alcohol and 11% are heavy drinkers [9]. Although alcohol use is illegal due to Islamic restrictions in Iran, its use has increased among young Iranians [10, 11]. There has been different reports regarding prevalence of alcohol use among Iranian students, varying from 7% to higher in other studies [12, 13].
The adverse effects of alcohol use in students of higher education are well described [14] and include academic failure, criminal behaviour, high-risk sexual behaviour and depression [15]. There are various factors that lead to a higher probability of alcohol use of which social factors, educational level, ethnic/racial background and personal characteristics are the most significant variables [16, 17].
In this study, we seek to determine the status of alcohol consumption and related risk factors among medical students for the following reasons: first, studies on the prevalence of alcohol use among Iranian medical students are limited, second, despite the cultural and social barriers, the increase in alcohol consumption is a challenging issue and third, identification of factors related to alcohol use could be a basis for planning educational and preventive interventions.

MATERIAL AND METHODS

Participants

This cross-sectional study was conducted on 681 students of Kashan University of Medical Sciences (a university in centre of Iran) from 16th August to 17th October 2019. The Ethics Committee of Kashan University of Medical Sciences approved this study with ID code of IR.KAUMS.NUHEPM.REC.1397.071. The inclusion criteria for participants were spending at least one semester as a medical student at Kashan Medical University and not having graduated at the time of the study. The sampling method was random stratified and in accordance with the population of each faculty and gender. In order to apply the sample size to the number of male and female students in the whole university, the ratio attributed to both sexes in the total number of participants was also considered. There were 2002 medical students in this university and according to proportional allocation, the sample size for the schools of the public health, nursing and midwifery, medicine, paramedical and dentistry was 104, 195, 170, 161 and 51 students respectively. The interviewer attended the classes at each faculty and randomly distributed the questionnaire to the participants.

Measurements

A socio-demographic questionnaire was used to assess the participants’ demographic characteristics including age, sex, marital status, place of residence, educational level and source of income. A researcher-made questionnaire was applied to measure alcohol use. The questions “Have you ever used alcohol during the last six months?” and “Have any of your family members (father, mother, brother, and sister) consumed alcohol during the last six months?” were applied to determine alcohol use among students and their family members. The latter question was also applied to measure alcohol use among the immediate and expanded family (grandfather, grandmother, uncle, aunt, cousin) and close friends. Finally, the question “Have you desire to use alcohol (whether or not you drink alcohol) the last six months?” was applied to measure tendency to use alcohol.
The comprehensiveness, relevance and clarity of this instrument were assessed through an expert panel including two epidemiologists, two psychologists and three researchers in the field of addiction. Reliability was evaluated by test-retest among 30 medical students and an intra-class correlation coefficient index was calculated. The validity and reliability indices of this researcher-made instrument were satisfactory (CVI, CVR, and comprehensiveness indexes more than 0.8 and ICC index more than 0.7).

Data collection

The interviewer explained the purpose of the study to the participants and assured them no personal data would be published. Informed consent was taken verbally. Subjects then completed the questionnaire personally and without the interviewer’s intervention. In order to maintain confidentiality, the individuals placed the questionnaires in a box without noting any personal details, and the box was opened at the end of the data collection process. The interviewers who distributing the questionnaire were not medical students and studied at another university to ensure the accuracy of data collection.
The obtained data were entered into SPSS software version 25 and analysed. Quantitative data were analysed using mean and standard deviation, and categorical data by employing frequency and percentage. A simple logistic regression analysis used in model 1, and multiple logistic regression analysis was run to assess the factors associated with alcohol use adjusted to other variables in model 2. All analyses were based on a 95% confidence level.

RESULTS

Baseline characteristics of participants

The subjects included 313 men and 368 women. The mean age was 26 years (SD = 2.4) and most of the participants (83%) were single. In terms of education, participants were mostly undergraduate (64.5%) and Ph.D. level (32.6%). As regards income status, most participants were family-dependent (76%). More than half (56%) lived in dormitories, while 42% resided with their families (Table I).

Prevalence of alcohol use among students, their families and close friends

Table II shows the prevalence of alcohol use among students, their families and close friends. About 4% (n = 27) of students reported that they drink alcohol (7.1% men and 1.4% women). The results showed that 4.6% of students reported alcohol use among their family members and 12.9% reported a history of alcohol use in their immediate and expanded family. The prevalence of alcohol use for participants’ close friends was 26.9%. The tendency to drink alcohol was found to be 17.6%.

Alcohol use and its associated factors

The relationship between alcohol use and each of associated factors was determined using multiple logistic regression (Table III). According to the findings, alcohol use among those students whose parents had a history of alcohol use was higher than those whose parents had no such experience (OR = 3.29, CI 95% = 1.10-5.49). In addition, the proportion of alcohol use in students whose close friends drank alcohol was higher than those with non-drinking close friends (OR = 4.10, CI 95% = 1.27-6.44).
Moreover, there was a positive association between being an alcohol consumer and the tendency to drink alcohol in the last year (OR = 6.28, CI 95% = 2.15-9.07). Regarding the type of residence, results showed that alcohol use among students living at home was lower than among those living in dormitories (p < 0.05). There was no significant relation between alcohol use and marital status, educational level and source of income (p > 0.05).

DISCUSSION

This study was conducted to determine the prevalence of alcohol use and associated factors in Kashan University of Medical Sciences, Iran. Our study showed a 4% prevalence of alcohol use among medical students. Studies have reported varying prevalence of alcohol use among Iranian students. The prevalence of alcohol use among students at Tehran University of Medical Sciences was reported as 9.6% in 2015 [12]. In another study at the Medical Universities of Kermanshah and Isfahan, the prevalence of alcohol use was about 10% in 2014 [18]. In 2013, a study stated that the prevalence of alcohol use was 6% in students of Zanjan University of Medical Sciences [19]. The prevalence of alcohol use in previous studies at 13 University of Medical Sciences in Iran [20] and Tabriz University students in 2019 [21] was reported as 9.7% and 7% respectively. It seems that the estimates of alcohol use prevalence in different regions can be affected by cultural and social factors beside the differences in the definition of alcohol consumption and size of the target population.
Our study also showed that alcohol use was more probable in the case of students whose parents and close friends had a history of alcohol consumption. These results were consistent with the findings of Arsalan in 2019 [22], Ogilvie in 2018 [23] and Greenfield et al. in 2010 [24]. Kendler et al. and Liam Mahedy’s studies in 2018 showed strongly that students with alcohol dependent parents tended to consume alcohol [25, 26], which is a similar finding to ours. Since most of students’ communication, lifestyle and social behaviours are formed in contact with family and friends [27], having family members or close friends with a history of alcohol use can be a key factor for facilitating access to alcohol and habit development.
Based on our findings, alcohol use among students living in dormitories was likely to be higher than those who lived with their family. This is consistent with a study conducted by Hulya Sirin et al., who assessed student alcohol use in nine provinces of Turkey in 2018 [28]. Other studies were consistent with our findings [29, 30]. Students living in dormitories appear to be at a higher risk of alcohol abuse and dependence due to the absence of supervision. Therefore it seems that the regulation of student admission policies at the university where students reside can play a preventive role in reducing the culture of composition and its negative impacts by changing lifestyles and the consumption of psychoactive substances.
In this study, in addition to measuring the prevalence of alcohol consumption among students, we wanted to assess the percentage of medical students who tend to consume alcohol with a self-reported question to determine if students are at risk for alcohol consumption, whether or not they are consumers. Our results showed about 18% of students intended to use alcohol and alcohol use in students was positively associated with tendency to drink alcohol. Consistent with these results, other studies have shown the relationship between alcohol use and the tendency to use alcohol in students [31, 32]. Since this study showed that about 18% of students tend to use alcohol, it seems that one individual’s tendency can make other students susceptible to alcohol or substance abuse. Improving the quality of lifestyles as well as promoting cultural and behavioural patterns in students can be effective factors to reinforce tendencies to use alcohol.
As for the limitations in this study, since alcohol use was measured by self-reported questions, the findings may be at risk of being under-reported. To solve this limitation, the interviewees were assured confidentially in answering the questions and there was no supervision while they filled out the questionnaires. A questionnaire collection box was used for the security of participants’ data. In addition, interviewers were selected from non-medical students so that participants could complete the questionnaire with confidence. The employment of statistical methods to identify hidden populations in future studies related to smoking, alcohol consumption and drug abuse is suggested. In addition, due to the far too low number of drinking women in our sample and very low number of drinkers in general, we removed women from the regression analysis to prevent spurious results.

CONCLUSIONS

Our study indicated that alcohol use prevalence is lower than in the findings of the national studies and surveys in other Iranian medical universities. However, considering the findings related to tendency to use alcohol, it seems that a significant proportion of students are at risk of alcohol use. Our findings suggest there is an urgent need to plan for prevention of alcohol use and promotion of lifestyle components with focus on cultural, academic and social factors.

Acknowledgements/Podziękowania

The authors are grateful to the Kashan University of Medical Sciences and Research Center for Social Determinants of Health for its support.

Conflict of interest/Konflikt interesów

None declared./Nie występuje.

Financial support/Finansowanie

None declared./Nie zadeklarowano.

Ethics/Etyka

The authors have obtained the written informed consent of the patients or subjects mentioned in the article. The corresponding author is in possession of this document. The work described in this article has been carried out in accordance with the Code of Ethics of the World Medical Association (Declaration of Helsinki) on medical research involving human subjects, Uniform Requirements for manuscripts submitted to biomedical journals and the ethical principles defined in the Farmington Consensus of 1997.
Treści przedstawione w pracy są zgodne z zasadami Deklaracji Helsińskiej odnoszącymi się do badań z udziałem ludzi, ujednoliconymi wymaganiami dla czasopism biomedycznych oraz z zasadami etycznymi określonymi w Porozumieniu z Farmington w 1997 roku.

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