HYGIENIC DESCRIPTION OF LIFESTYLE FACTORS AMONG STUDENTS OF COLLEGES

Assessment of lifestyle factors is a pressing issue with a high social and state value. Purpose of the study is to compare lifestyle factors of young men and young women who study at colleges. A cross-sectional sampling descriptive study was conducted in 2021–2022. 371 students from 2 colleges of various profiles aged 16 to 20 (25.4% of young men and 74.6% of young women) participated in the study. Socioeconomic indicators, regimen of nutrition, periodic consumption of basic products and dishes, taste preferences of students, compliance with sleep pattern, duration of self-preparation for lessons, physical exercises and sporting activities, creative hobbies and use of gadgets were examined. It has been established that the majority of young people live in favorable social conditions, over one-third of them stay away from their parents and other adult relatives. The majority of those interviewed estimate income of their families as an average, all families have at least one PC. The majority of students have eating disorders, peculiarities of dietary behavior, and violations of the regimen of the day such as insufficient sleep duration, high academic load, insufficient involvement in creative or social activity, low level of motor activity and walking, long-term use of PCs and other gadgets.

Health is a natural condition of the body caused by normal functioning of all organs and systems.In accordance with literature and Rosstat, percentage of young people with the first group of health is steadily declining [1].Scientists associate the issue with changes in the lifestyle [2][3].Hypodynamia, excessive energy value and imbalanced diet are pressing modern issues and primary sources of non-infectious diseases [4][5][6].Thus, examining the lifestyle of students under modern social and economic conditions is a pressing issue, the solution of which allows not just to assess the risk factors of losing health but also develop evidence-based measures to preserve and strengthen health of students and enhance the possibilities to obtain more qualitative professional education [7][8][9].The purpose of the study is to perform a comparative analysis of lifestyle factors among young men and young women who study at colleges.

MATERIALS AND METHODS
Theoretical (literature analysis), empirical (surveying) and statistical methods are used to achieve the goal.From April 2021 to May 2022, a sampling observational descriptive crossover (one stage) study was performed on Google-forms platform using the survey method.The study object was represented by students from two colleges of Yekaterinburg.371 students with 25.4% of young men and 74.6% young women aged 16 to 20 who provided an informed voluntary consent participated in the study.The subject of the study was represented by social and economic indicators (living conditions, education of parents, perception of income, availability of a car and PCs in a family) and lifestyle factors such as nutrition regimen, frequency of consumption of basic products, peculiarities of dietary behavior, sleeping pattern, duration of self-preparation for classes, periodicity and duration of walks and involvement in creative activity, physical activity, use of stationary and mobile electronic gadgets.
Questionnaire based on Health Behavior in School-Aged Children (HBSC, 2017), Health and Nutrition Intercultural Quality Life Research (Federal Research Center for Nutrition, Biotechnology and Safety of Food, 2018) and Nutrition Behavior Survey by Savchikova Yu.L. (2005) WHO international surveys were used to study a lifestyle.The data were analyzed using extensive values and their errors for qualitative attributes, mean values and errors for quantitative attributes.Extensive indicators were calculated according to the following formula: part of phenomenon (environment)/ whole phenomenon (environment) x 100%.The error was calculated by the following formula: m = √P*(100 -P)/n -1, where P is a value of the extensive indicator, n is a sampling size.
The statistical difference between the groups of comparison (young men and young women) was estimated using the Student's t-test for relative values: t = (P 1 -P 2 ) / √ (m 1 2 + m 2

2
) .The average value was estimated using the following formula: Mср.= ∑ M i / n, where M i means the value indicator for every sampling participant.The error of mean was calculated using the following formula: m = σ/√N, where N is a sampling size.The statistical value between the comparison groups was estimated by the Student's t-test for average values: t = (Mср 1 - ).The statistical significance of differences was assessed at the level of significance equal to р ≤ 0.05.
Statistical analysis was done using Microsoft Excel 2007 (USA).
Only (23.1 ± 4.5%) of young women and (38.2 ± 5.0%) of young men (p<0.05)believe that they have proper nutrition.Less than a half of those requested believe that their weight is normal: (45.5 ± 3.0%) of young women and (45.8 ± 5.7%) of young men (p>0.05).Meanwhile, (32.5 ± 2.8%) of young women and (23.4 ± 4.4%) of young men think that their weight is above normal values (p>0.05);whereas (14.4 ± 2.1%) of young women and (23.4 ± 4.4%) young men think that their weight is above the normal values (p<0.05).Girls would like to reduce their weight more frequently than boys: (40.1 ± 2.9%) against (25.5 ± 4.5%) (p<0.05).According to the study results, young women get more emotional about excessive weight, amount of consumed food, eat their feelings, suffer from a guilty conscience if they eat more that they should, but they overeat less frequently than men (table 2).According to a half of those interviewed, their relatives have excessive weight.
When analyzing the sleep pattern, it has been established that the majority of those surveyed sleep less than 7 hours a day: (54.3 ± 5.1%) of young men and (49.5 ± 3.0%) of young women.About one fourth of interviewed young men (20.2 ± 4.1%) and one-third part of women (32.1 ± 2.8%) are deprived of sleep on a daily basis (p < 0.05).
Over 70% of those requested estimate their academic achievements as satisfactory.However, (34.1 ± 4.9%) of young men and (44.7 ± 3.0%) of young women report that it's hard for them to study (p < 0.05).Average duration of self-preparation for classes in a college constitutes 2.4 ± 0.04 hours per day among young women and 3.3 ± 0.02 hours a day among young men.Percentage of young men, self-preparation in whom exceeds the hygienic standard (3 hours) amounted to (27.7 ± 46%) in young men and (48.4 ± 3.0%) in young women (p < 0.05).
(29.7 ± 4.7%) of young men and (48.7 ± 3.0%) of young women (p < 0.05) are engaged in creative and social activity and have hobby.Young men do it 3.25 ± 0.07 times a week in average, whereas young women are engaged in this activity 2.49 ± 0.04 times a week (p < 0.05).Average duration of classes has no statistically significant differences and amounted to 1.6 ± 0.03 hours in women and 1.5 ± 0.06 hours in men (p > 0.05).While assessing the results of motor activity it has been found out that (50.0 ± 5.2%) of young men and (33.9 ± 2.8%) of young women (p < 0.05) are engaged in regular physical exercises (apart from lessons in a college).An average number of lessons was 3.3 ± 0.07 times a week with an average duration of 1.8 ± 0.03 hours in men, and 2.2 ± 0.03 times a week with an average duration of 1.5 ± 0.01 hours in women.
(54.3 ± 5.1%) of young men and (48.7 ± 3.0%) of young women walk every day, (17.0 ± 3.9%) of young men and (19.1 ± 2.4%) of young women walk 4-6 times a week, (13.8 ± 3.6%) of young men and (22.7 ± 2.5%) of young women walk 1-3 times a week, whereas (14.9 ± 3.7%) of young men and (9.4 ± 1.8%) of young women walk less frequently than once a week or do not go for a walk at all.The average duration of walking during a day accounts for 1.8 ± 0.05 hours a day in young men, and 1.6 ± 0.04 hours a day in young women (p > 0.05).
According to analysis of frequency and duration of use of gadgets, the screen time was significantly increased on weekends as compared with academic days.Girls use gadgets more frequently than boys both during academic days and on weekends with the average time of their using being longer on weekends than on academic days (5.3 ± 0.1 hours a day against 4.8 ± 0.07 hours a day).Young men use gadgets for 4.4 ± 0.1 hours on academic days and for 5.0 ± 0.1 hours on weekends.(87 ± 3.7%) of young men and (89 ± 2.1%) young women have the average screen time of over 170 minutes a day [9] (fig.2, 3).

DISCUSSION OF RESULTS
Thus, the obtained results show there is a high prevalence of risk factors in a lifestyle of students from colleges: unbalanced and improper feeding, poor sleep, low physical activity, lack of walking in the open air, increased mental burden and high level of gadgetization.A review of Russian and foreign scientific literature sources regarding examination and assessment of health-related behavior of adolescents and young people was performed [11][12][13][14][15]. Thus, obtained results are in accordance with the results of 'Hygienic description of medical and social factors and lifestyle of modern Moscow schoolchildren' research by Bokaryova NA et al. [15].Issues of irregular and unbalanced nutrition are found in various age groups of students from colleges of Yekaterinburg and Moscow.Meat and dairy products, fresh vegetables and fruits are insufficiently presented in the diet intended for a growing body.Sleep deficit (less than 7 hours a day), long-term and regular use of gadgets by schoolchildren are noted in the study.Sports and dance sections are more frequently visited by schoolchildren than by college students (p < 0.05).Modern adolescents spend 5-6 hours a week on sections with a sports component; in our study, a similar level is established for young men, and it is less for young women.Our results comply with results of studies by Shubochkina EI et al. conducted among the students of organizations of secondary vocational education in Moscow [16,17].
In these studies, results regarding risk factors were similar with those obtained during our study: violation of diet, lack of various food, imbalanced diet, low motor activity, which occurs more frequently in young women than in young men, sleep deficit associated with academic and other lessons.
In connection with the above, it is necessary to solve the tasks related to informing of and attraction of attention of adolescents and young people to the significance of proper organization of main components of a lifestyle, teaching them skills of rational organization of the daily routine, nutrition, daily activity, curricular and extracurricular activities.It is important to pay attention to compliance with hygienic requirements to schedule planning and conduction of lessons, organization of physical education and nutrition.

CONCLUSIONS
The majority of college students have favorable living conditions, and their parents have higher or specialized secondary education, whereas young people have a separate room and PC of their own.Many of those interviewed stay separately from their parents, on their own or with a boyfriend/girlfriend.
Many students have irrational and imbalanced nutrition skipping meals, most frequently breakfasts or dinners.Young people seldom consume fruits, vegetables, dairy products, cereals, fish, but rather frequently have sausage products and pasta.It has been found out that the majority of girls are worried about how they look and excessive weight as compared with young men.
While assessing the daily regimen the following results have been achieved.The majority of those interviewed sleep less than 7 hours a day, many of them get little sleep on a daily basis.One-third part of young men and half of women have difficulties with academic load.Girls are more frequently They are engaged in a greater amount of training sessions with a longer duration.Their peers (friends, brothers or sisters) or, much less frequently, their parents, set an example in exercises or sports.Only half of those interviewed walk every day.The average duration of walking is higher among young men.Over 90% of study participants use PCs and other gadgets for 2 and more hours per day with their duration being significantly increased on weekends as compared with school days.
The study results confirm relevance and significance of monitoring of lifestyle among young men to preserve and improve their health.It is necessary to develop methods of prevention, introduce evidence-based medical and pedagogical programs related to formation of a healthy lifestyle and training of adolescents and young people.

Table 1 .
Frequency of consuming food products and related dishes within the last month, P ± m Representatives of both genders frequently have supper alone.Only a half of families follow the necessary frequency of nutrition and take food at a certain time.

Table 2 .
Peculiarities of dietary behavior in students, P ± m RUSSIAN BULLETIN OF HYGIENE | 4, 2022 | RBH.RSMU.PRESS Distribution of students by duration of using gadgets during non-study time on academic days Distribution of students by duration of using gadgets during non-study time on weekends РОССИЙСКИЙ ВЕСТНИК ГИГИЕНЫ | 4, 2022 | RBH.RSMU.PRESS engaged in a creative activity and hobby.Young men do heavy physical activity more frequently than young women and have more and longer training sessions.