Nutrition-Exercise Behaviors, Health Literacy Level, and Related Factors in Adolescents in Turkey

The Cross-Sectional Association of Health Literacy With Healthy Lifestyle Behaviors in the Turkish Population: A Systematic Review and Meta-Analysis

OBJECTIVE

To meta-analytically investigate the cross-sectional association between health literacy (HL) and healthy lifestyle behaviors (HLBs) in the Turkish population.

DATA SOURCE

Web of Science, PubMed, Scopus, EBSCO, DergiPark, TRDizin, and Türkiye Council of Higher Education Thesis Center.

EXCLUSION CRITERIA

Not accessible in Turkish or English in full text; not on the Turkish population; addressed e-HL, digital HL, mobile HL or corporate HL; addressed HL in a specific context; did not seek any association between HL and HLBs.

INCLUSION CRITERIA

Cross-sectional studies that reported a correlation coefficient or any convertible equal statistical measure for the association between HL and HLBs.

DATA EXTRACTION

Two reviewers independently screened the articles, extracted the data from the included studies into a structured form and assessed their methodological quality.

DATA SYNTHESIS

We conducted meta-analyses and reported the characteristics, outcomes, and quality assessment of studies.

RESULTS

Of 3833 records accessed we included 52 that fulfilled the eligibility criteria. Our primary findings demonstrated positive low-to-moderate associations between HL and health-promoting behaviors (r = .32 [CI:.30-.35; I2 = .00]), HL and physical activity (r = .23 [CI:.18-.27; I2 = .12]), and HL and vaccination (r = .12 [CI:.07-.17; I2 = .00]). In contrast, HL was not significantly associated with non-smoking (r = .02 [CI:-.02-.36; I2 = .09]), healthy diet (r = .02 [CI:-.01-.06; I2 = .00]), and screening (r = .07 [CI:.04-.11; I2 = .07]). However, our sensitivity and meta-regression analysis results suggested that the association of HL with healthy diet seems to increase with age. On the other hand, we failed to find any convincing evidence of any of the included variables affecting the association between HL and all types of HLBs (r = .17, I2 = 95.81%).

CONCLUSION

HL has the potential to improve the HLBs of Turkish individuals, however, there is a need for better understanding of the possible underlying determinants of the association between them.

Effectiveness of health literacy-based motivational interviewing and health education on adolescents' nutrition and exercise behaviors in Turkiye: A randomized controlled trial

OBJECTIVE

To measure the effectiveness of health literacy-based motivational interviewing and health education to improve adolescents' nutrition and exercise behaviors.

STUDY DESIGN

A randomized controlled trial.

METHODS

The study was completed with 63 adolescents (aged 14-15 years) of which 21 were in the motivational interviewing group, 21 were in the health education group, and 21 were in the control group. Data collection tools were applied to all groups before the intervention, after the completion of the intervention (post-test), at the third and sixth month. The data were analyzed using Chi-square test and two-way mixed design ANOVA with Bonferroni test.

RESULTS

The mean scores of nutrition and exercise at the post-test, third month, and sixth month of the motivational interviewing and health education groups were significantly higher than the control group. The intervention had a large effect size.

CONCLUSION

Health literacy-based motivational interviewing and health education were effective in improving nutrition and exercise behaviors among adolescents.

Effectiveness of health literacy education on health literacy in early adolescence: A randomized controlled trial

OBJECTIVES

The present study was conducted to measure the effectiveness of health literacy education on the health literacy level of children in early adolescence.

STUDY DESIGN

A parallel group randomized controlled trial was conducted.

METHODS

The study group consisted of sixth and seventh-grade students (aged 12-13 years) studying in a secondary school in Ankara. The study was completed by 80 students, 40 in the intervention group and 40 in the control group. The Health Literacy Education program, consisting of four sessions, was presented to the intervention group. The instruments were administered to both groups before the intervention (pre-test), one month (post-test), and three months after the intervention (follow-up test). The data was analyzed using the chi-square test, and the two-way mixed-design variance analysis with Bonferroni Multiple Comparison Test.

RESULTS

Before the study, the adolescents in the intervention and control groups were similar regarding descriptive characteristics (p > 0.05). There was no statistically significant difference between the pre-test health literacy mean scores of the intervention and control groups (p > 0.05). After the health literacy education, health literacy post-test scores and follow-up test mean scores of the intervention group increased significantly compared to the control group (p < 0.05). The intervention had a large effect size (F = 414.683; η2 = 0.91) at the 95 % confidence interval.

CONCLUSIONS

The study revealed that health literacy education was effective in increasing the level of health literacy in early adolescence. It is recommended that health literacy education be added to the school education curriculum of adolescents.

The effect of health literacy-grounded web-based education on nutrition and exercise behaviours in adolescents: A randomized controlled trial

AIM

The research was conducted to measure the effect of health literacy-grounded web-based education program on health literacy, nutrition and exercise behaviours in adolescents.

BACKGROUND

The increasing prevalence of obesity in adolescents is explained by a sedentary lifestyle and unhealthy diet. Health literacy is essential for adolescents to maintain their healthy behaviours.

METHODS

The research was conducted as a parallel group randomized controlled trial. The study was completed by 114 adolescents (experimental = 42, control = 72). The Personal Information Form, the Health Literacy Scale for School-Age Children and the Nutrition and Exercise Subscales were used to collect data. A web-based education program was implemented. Two-way mixed design ANOVA with Bonferroni test was used to examine the group, time and group * time interaction of the measurements.

RESULTS

There was no statistically significant difference between the experimental and control groups regarding health literacy level, nutrition and exercise behaviours pre-test mean scores (p > 0.05). In the post-test, the mean scores of health literacy and nutrition behaviours in the experimental group were higher than the control group (p < 0.001). However, there was no significant difference in exercise behaviours (p > 0.05). The power and effect size in mean scores changes for health literacy (99.8%, η2 = 0.039) and nutrition (99.8%, η2 = 0.039) were moderate.

CONCLUSION

The study concluded that health literacy-grounded web-based education program increased the health literacy levels of adolescents and improved their nutritional behaviours; however, there was no sufficient change in exercise behaviours.

The effect of health literacy on health behaviors in a sample of Turkish adolescents

PURPOSE

Health literacy is a strong factor in the health outcomes and behaviors of adolescents. This study was conducted to examine the health literacy levels of adolescents, their health behaviors, and the effect of health literacy on health behaviors.

DESIGN AND METHODS

This cross-sectional study was conducted with a total of 649 adolescents between the ages of 14 and 18. Data were collected using the Adolescent Lifestyle Profile II (ALP-R2) and the Health Literacy Scale for School-Age Children (HLSAC). A multiple regression analysis was conducted to determine the effects of health literacy on health behaviors and the factors associated with health behaviors.

RESULTS

The mean total ALP-R2 score of the participants was 114.35 ± 17.48, and their mean HLSAC score was 28.95 ± 5.79. Among the participants, 26% had low health literacy, 61.9% had moderate health literacy, and 12% had high health literacy. The regression analysis revealed that the health literacy levels of the participants significantly predicted all dimensions of health behaviors and total health behaviors (p < 0.001). The health literacy levels of the participants, the community where the adolescent lived, their participation in social activities, family relationships, friend relationships, and health perceptions significantly predicted their total health behaviors (R2 = 0.347; p < 0.001).

CONCLUSIONS

The health literacy levels and health behaviors of adolescents were found to be moderate, and their health behaviors increased as their levels of health literacy increased. The results showed that the health literacy and health behaviors of adolescents need to be improved.

IMPLICATIONS FOR PRACTICE

Nurses should provide training to increase the healthy lifestyle behaviors and health literacy of adolescents.

Predisposing factors of health promotion behaviors and health literacy in adolescents: A cross-sectional design

OBJECTIVE

This study was designed to measure health promotion behaviors, health literacy (HL) levels, and their predisposing factors among adolescents.

DESIGN

A cross-sectional design was used.

SAMPLE

The study was completed by 1046 students aged 11-14 years.

MEASUREMENTS

Data were collected via the HL for School-Aged Children Scale and the Adolescent Health Promotion Scale.

RESULTS

HL was significantly associated with gender, participation in sport activities, and health promotion behaviors. There was no confounding factor for HL. Adolescent health promotion behaviors were significantly associated with academic level, weight perception, participation in sport activities, and HL.

CONCLUSIONS

Nurses could improve communication and decision-making skills related to health behaviors and learn how to obtain health-related knowledge to promote the health of adolescents.

Relationships among Sleep Time, Physical Activity Time, Screen Time, and Nutrition Literacy of Adolescents: A Cross-Sectional Study in Chongqing, China

Background: Unhealthy lifestyles among adolescents are reaching alarming levels and have become a major public health problem. This study aimed to assess the relationship between sleep time, physical activity (PA) time, screen time (ST), and nutritional literacy (NL). Methods: This cross-sectional online study involving adolescents aged 10-18 years was conducted in September 2020 in 239 schools in Chongqing, China. NL was measured using the "Nutrition Literacy Scale for middle school students in Chongqing (CM-NLS)". According to the recommended by the Chinese dietary guidelines (2022), we divided the sleep time of junior high school students into <9 h and ≥9 h, high school students into <8 h and ≥8 h, divided the workdays into weekend PA time < 1 h and ≥1 h, and divided the workdays into weekend ST < 2 h and ≥2 h. The multinomial logistic regression model was used to examine the association. Results: A total of 18,660 adolescents (50.2% males) were included. The proportion of participants that were junior high school students and attended boarding schools was 57.2% and 65.3%, respectively. Compared with senior high school students, junior high school students had a higher level of NL. Whether on workdays or weekends, participants with sleep time ≥ 8/9 h, PA time ≥ 1 h, and ST < 2 h per day had higher levels of NL. On weekdays, participants who met the sleep time ≥ 8 h/9 h (OR = 1.48, 95% CI: 1.36, 1.62) and PA time ≥ 1 h (OR = 1.69, 95% CI: 1.59, 1.81) had higher reporting of NL levels. Conclusions: Sleep time, PA time, and ST were positively correlated with NL among adolescents, especially junior high school students.

The effect of structured health promotion education given to adolescents on health literacy and health-promoting behaviors

PURPOSE

This study was conducted to determine the effect of structured health promotion education given to adolescents on health literacy and health promotion level.

DESIGN AND METHODS

The research was designed according to the pretest-posttest control group model and conducted using the quasi-experimental method. The population of the study consisted of students studying in the 6th, 7th, and 8th grades of a secondary school. A total of 191 students were assigned to the intervention group and the control group. The data were collected using the Sociodemographic Characteristics Form, the Adolescent Health Promotion Scale, and the School Age Health Literacy Scale. Structured Health Promotion Education consisting of six modules was given to the intervention group. The control group did not receive any intervention.

RESULTS

Of the students, 33.9% were in the 8th grade, 76.6% were born in Turkey, 31.6% had a father and mother who were secondary school graduates, 72.5% were from moderate-income families, and 83% had no chronic health problems. The groups' health literacy and adolescent health-promoting behaviors pretest mean scores before the intervention were homogeneous (p > 0.05). There was a significant difference between the groups' health literacy and adolescent health-promoting behaviors posttest mean scores after the intervention (p < 0.05).

CONCLUSIONS

While structured health promotion education was found to increase health literacy and health-promoting behaviors, nutrition, stress management, life satisfaction, and health responsibility behaviors in adolescents, it did not affect social support and exercise behaviors.

IMPLICATIONS FOR PRACTICE

Nurses should provide training to increase students' health literacy and health-promoting behaviors.

The development and cross-national validation of the short health literacy for school-aged children (HLSAC-5) instrument

Health literacy is an asset for and indicator of adolescents' health and wellbeing, and should therefore be monitored and addressed across countries. This study aimed to develop and validate a shorter version of the original 10-item health literacy for school-aged children instrument in a cross-national context, using data from the health behaviour in school-aged children 2017/18 survey. The data were obtained from 25 425 adolescents (aged 13 and 15 years) from seven European countries. Determination was made of the best item combination to form a shorter version of the health literacy instrument. Thereafter, the structural validity, reliability, measurement invariance, and criterion validity of the new 5-item instrument were examined. Confirmatory factor analysis showed a good model fit to the data across countries and in the total sample, confirming the structural validity (CFI = 0.995, TLI = 0.989, SRMR = 0.011, RMSEA = 0.031). The internal consistency of the instrument was at a good level across countries (α = 0.87-0.98), indicating that the instrument provided reliable scores. Configural and metric invariance was established across genders, ages, and countries. Scalar invariance was achieved for age and gender groups, but not between countries. This indicated that the factor structure of the scale was similar, but that there were differences between the countries in health literacy levels. Regarding criterion validity, structural equation modelling showed a positive association between health literacy and self-rated health in all the participating countries. The new instrument was found to be valid and reliable for the purposes of measuring health literacy among adolescents in a cross-national context.

Health literacy among adolescents and young adults in the Eastern Mediterranean region: a scoping review

OBJECTIVES

For adolescents and young adults, most health literacy research has been conducted in Western countries, but few studies have been conducted in the Eastern Mediterranean region (EMR). This review aimed to explore the existing health literacy research in the EMR in addition to the levels of health literacy and its associated factors among adolescents and young adults.

METHODS

The search, conducted using the PubMed/MEDLINE, EBSCOhost/CINAHL plus, Web of Science and J-STAGE databases, was initially performed on 16 June 2022 and later updated on 1 October 2022. Studies that targeted 10-25 years old persons, conducted in any of the EMR countries and that used the health literacy concept and/or described its levels or predictors were included in the review. Content analysis was used for data extraction and analysis. Data related to the study methods, participants, outcome variables and health literacy were extracted.

RESULTS

The review included 82 studies, most of which were conducted in Iran and Turkey and adopted a cross-sectional design. Half of the studies showed that more than half of adolescents and young adults had low or moderate health literacy. Nine studies applied university-based or school-based health education interventions to improve health literacy, which was also predicted by demographic and socioeconomic factors and internet usage. Little attention was paid to assessing the health literacy of vulnerable people, such as refugees and those with a disability and exposed to violence. Finally, various health literacy topics were investigated, including nutrition, non-communicable diseases, media and depression.

CONCLUSION

Health literacy levels were low-to-moderate in adolescents and young adults in the EMR. To promote health literacy, it is recommended to use school-based health education and attempt to reach adolescents and young adults through social media platforms. More attention should be paid to refugees, people with disabilities and those exposed to violence.

Nutrition literacy differs based on demographics among University students in Bengbu, China

Background

Nutrition literacy (NL) encompasses the knowledge and skills that inform individuals' food choices. This cross-sectional study explored factors associated with NL among Chinese university students in Bengbu, China.

Methods

A cross-sectional survey was carried out. Two thousand one hundred thirty-three university students were selected by stratified cluster sampling. A 43-item NL questionnaire was used to assess NL. Binary logistic regression was used to determine odds ratios (ORs) along with 95% confidence intervals (CIs) for NL and to test the interaction effects of multiple factors on total NL and its six dimensions.

Results

Of these participants, 1,399 (65.6%) were women and 734 (34.4%) were men. Students who were from urban areas (OR = 1.36, 95% CI: 1.08-1.72), were living with both parents (OR = 1.30, 95% CI: 1.02-1.65), and had high academic performance (OR = 1.85, 95% CI: 1.34-2.57) were more likely to report higher NL levels than did other students. The ORs for NL (OR = 1.60, 95% CI: 1.06-2.41), nutrition knowledge (OR = 1.51, 95% CI: 1.00-2.26), obtaining skills (OR = 1.76, 95% CI: 1.16-2.65), and critical skills (OR = 1.59, 95% CI: 1.05-2.39) were higher for medical students who had received nutrition education than for other students. The ORs for NL (OR = 2.42, 95% CI: 1.21-4.84), nutrition understanding (OR = 2.59, 95% CI: 1.28-5.25), and interactive skills (OR = 2.06, 95% CI: 1.04-4.08) were higher for only-child students and those with a monthly expenditure of >¥1500.

Conclusions

NL of university students differed in terms of place of origin, living arrangement, nutrition education, academic performance, and household income, and the findings imply that universities should have all students take a basic nutrition course to improve their NL.

Health Literacy and COVID-19 Awareness Among Preservice Primary School Teachers and Influencing Factors in Turkey

BACKGROUND

Primary school teachers play an important role in furnishing children with basic knowledge about health literacy and awareness of COVID-19. This study was conducted to determine the levels of health literacy and COVID-19 awareness among preservice primary school teachers and the factors associated with this.

METHODS

The sample of this cross-sectional and correlational study consists of 978 preservice primary school teachers studying at 4 major universities in Turkey. The participation rate was 90.14%. Data were collected with 3 questionnaires, the Descriptive Characteristics Form, the Health Literacy Scale, and the COVID-19 Awareness Scale.

RESULTS

The mean score of the Health Literacy scale was 105.16 (SD = 13.04). The mean scores of the Contagion Precaution Awareness, Awareness of Following Current Developments, and Hygiene Precaution Awareness subscales of the Coronavirus Awareness Scale were 34.27 (SD = 6.19), 12.94 (SD = 4.34), and 11.69 (SD = 3.60), respectively. It was determined that the total health literacy score was affected by gender, school, and grade/year (freshman, sophomore, junior, senior) and that COVID-19 awareness was affected by gender, age, grade/year, school, having contracted COVID-19 or not, and being vaccinated or not in the various subscales (p < 0.05).

CONCLUSIONS

Preservice primary school teachers' health literacy was found to be sufficient with a moderate level of COVID-19 awareness. We recommend planning interventions for preservice primary school teachers that will improve their health literacy and COVID-19 awareness, taking influential factors into account when doing this planning.

Nutritional Behaviors, Health Literacy, and Health Locus of Control of Secondary Schoolers in Southern Poland: A Cross-Sectional Study

Nutritional behaviors remain an essential part of a healthy lifestyle. It seems obvious that unfavorable health behaviors adopted in adolescence are maintained late in adulthood and may have a profound effect on health status. The main aim of this study was to assess the association between nutritional behaviors and health literacy (HL), health locus of control (HLC), and socioeconomic variables in secondary school pupils from a voivodship (the main unit of territorial division) in southern Poland. The analysis was based on dataTable from a paper-and-pencil survey taken by 2223 pupils from schools selected as the result of cluster sampling. The survey questionnaire encompassed a set of five items asking about dietary patterns and the consumption of fruit and vegetables as well as fast food, a European Health Literacy Project Questionnaire consisting of 47 items, the Multidimensional Health Locus of Control (MHLC) scale, and items asking about sociodemographic and economic variables. Uni- and multivariate logistic regression models have been developed to assess the predictors of indicator nutrition behaviors. The adjusted models revealed that internal HLC was not significantly associated with any of analyzed nutritional behaviors. “Powerful other HLC” and “Chance HLC” (dimension of external HLC) were significant predictors of the selected dietary patterns. Furthermore, higher HL was associated with higher consumption of fruit and vegetables [odds ratio, 95% confidence interval (OR, 95% CI)]: 1.02 (1.01–1.04) and with lower consumption of fast food (OR, 95% CI, 0.98, 0.95–0.999). There was a significant relationship between gender, the size of the household, self-assessed economic situation, expenditures on mobile phones, and weekly duration of Internet use and selected nutrition behaviors. In conclusion, developed regression models confirmed a significant relationship between HL and the types of consumed food, but not with dieting patterns. Contrary to earlier studies, internal HLC was not associated with nutrition behaviors. In our study, boys showed more favorable nutritional behaviors than girls. More intense use of the Internet was associated with less beneficial nutritional behaviors. This study brings important results that should have an impact on health promotion interventions addressed to adolescents in southern Poland.