The Relationship between Health Literacy and General Health

7 ژوئن, 2018 بانک مقالات, تدوین مقاله علمی پژوهشی, خلاصه مقالات, دانشگاهی, مدیر سایت دیدگاه‌ها برای The Relationship between Health Literacy and General Health بسته هستند

The Relationship between Health Literacy and General Health Level of Hemodialysis Patients: A Case Study in Iran

Mohammadkarim Bahadori ¹, Fahimeh Najari ²and Khalil Alimohammadzadeh ^3*

Authors Information

¹ Health Management Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran

² Health Deputy, Bam University of Medical Sciences, Kerman, Iran

³ Department of Health Services Management, North Tehran Branch, Islamic Azad University, Tehran, Iran

Article information

Nephro-Urology Monthly: May 2018, 10 (3); e66034
Published Online: May 14, 2018
Article Type: Research Article
Received: February 27, 2018
Accepted: April 24, 2018
DOI: 10.5812/numonthly.66034

To Cite: Bahadori M, Najari F, Alimohammadzadeh K. The Relationship between Health Literacy and General Health Level of Hemodialysis Patients: A Case Study in Iran, Nephro-Urol Mon. 2018 ;10(3):e66034. doi: 10.5812/numonthly.66034.

Abstract

Copyright © 2018, Nephro-Urology Monthly. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited

1. Background

The final stage of kidney failure is one of the major health problems in kidney patients (1). Chronic renal failure is the progressive and irreversible degeneration of renal performance, the main treatment of which is renal transplantation, and the patients must undergo dialysis while waiting for renal transplantation (2). The prevalence rate of chronic renal failure in the world is 242 cases per one million of the population, and this population annually increases by eight percent (3). In Iran, the prevalence and incidence of advanced renal failure in 2010 were, respectively, reported to be 357 and 57 cases per one million people over one year (4). Therefore, hemodialysis is the most common alternative treatment in the final stage of renal disease (5).

Nowadays, dialysis has succeeded in saving thousands of uremia patients from premature death. Dialysis units are presently available in all provinces and most cities of Iran; nevertheless, despite technical advancements in hemodialysis in the past ten years, the mortality rate of hemodialysis patients and the patients in the final stage of renal failure has remained high (6). In the United States and industrial countries, the annual mortality rate is 23% (7).

Due to the nature of their disease, hemodialysis patients experience many problems for undergoing hemodialysis including reduced self – confidence, social isolation, and lack of mobility, which will subsequently reduce patients’ social interaction with others (8). The sense of inability, lack of control on the disease and treatment, financial problems, inability to maintain job, having multiple drug treatments, certain dietary plans, and having the ability to adapt to the physical and mental disabilities influence the quality of life of the patients undergoing dialysis (9).

Unfortunately, the social complications and psychological pressure caused by hemodialysis in these patients reduce their general health and survival rates and increase their mortality rate. In a study in Singapore, survival rate was 89.3% in patients in their first year of hemodialysis but it decreased to 58.7% after five years (10). Hence, these patients face risk factors, such as early aging, physical and nutritional disability, heart failure, and depression. However, if patients actively control the disease and recognize its symptoms and complications, they can improve their health condition (11). One of the effective ways to decrease mortality rate and enhance the general health of these patients is to improve their health literacy level (12).

The costs of chronic diseases are exorbitant for the patient, the families, and the society. Chronic diseases can seriously disrupt the quality of health – related life of the people. Some of the demographic subgroups with financial deprivation and problems in health literacy level and language have been very vulnerable to receive desirable health care due to an unsuccessful relationship with physicians or an increase in care barriers. Global experiences suggest that such factors as economic development, enhancement of educational level, health literacy, and improving social services can have a positive influence on social health and welfare of the people in any society. The decrease in health literacy skills is a common issue in health care and is associated with adverse health outcomes (13).

Health literacy is a degree to which each individual has the necessary capacity to achieve, process, and understand the primary health information for appropriate health decision – making including a set of reading, listening, analyzing, and decision – making skills, and the ability to use these skills in health – related conditions that are not necessarily related to education years and general reading skills (14).

Health literacy has been introduced as a realistic approach for involving individuals in self – care and health enhancement activities (15). Low health literacy is associated with a high prevalence of chronic diseases and low general health (16). Unlike demographic features and social structures that are persistent and unchangeable without wide political and social activities, health literacy is modifiable and can be enhanced by health education (15).

Health literacy is associated with a wide range of health outcomes including adherence to proper drug use, participation in screening and health programs, self – care in chronic diseases, and other health recommendations (17). The results of recent researches indicate low health literacy in Iran (18, 19). Over the last few decades, general health has been known as an important health criterion and it has been believed that the results of health services not only increase life expectancy, but it should also improve the quality of life (20).

Studies have shown that people with higher health literacy have higher and more desirable performance in dealing with physical, psychological, and mental problems (21). On the other hand, renal diseases influence the general health of the patients and reduce their quality of life (22). For example, in their study on patients presenting to two large urban public hospitals in Atlanta, Baker et al. (1997) indicated that patients with inadequate functional health literacy were more likely to report their health as poor compared to patients with adequate literacy (23). Moreover, Omachi et al. (2009) concluded that regardless of the economic situation, low health literacy is associated with more intense disease, more severe shortness of breath, and lower quality of life (24).

Over the past 20 years, the interest in evaluating and improving the general health of patients with chronic diseases has significantly increased, so that improvement in daily performance and general health of the patients with chronic diseases has changed into a goal (25). Measuring general health in renal diseases is highly important, because although these diseases do not lead to a reduction in survival in many cases, they can influence the general health of people in various ways, such as itching and pain, mental stress, lack of self – confidence, confusion, impact on social and family relationships, treatment problems, financial burden, and waste of time (26).

2. Objectives

3. Methods

In this descriptive – analytical study, we examined the relationship between health literacy and the general health of hemodialysis patients who referred to Baharlou hospital affiliated to Tehran University of Medical Sciences in 2017.

The study area included dialysis ward of Baharlou Hospital. Baharlou Hospital was established in the form of a small clinic in 1935 after the expansion of the railway network. It is now a general hospital that provides educational services for medical students in various levels. In addition, it provides treatment services with 330 approved beds and 258 active beds; it has emergency, pediatrics, obstetrics and gynecology, surgery, heart, CCU, ICU, neonates, dialysis, thalassemia, psychiatric, orthopedic, ENT, and poisoned (in two parts of poisoned and obstetrics and gynecology) wards. In the dialysis ward, 130 hemodialysis patients receive services three times a week on average. Due to the limited study society, sampling was not done, and all the study population was included in the study. Exclusion criteria were reluctance to participate in the study, psychological and mental problems, as well as the foreign citizenship of the patients.

Demographic features of the patients, such as age, sex, marital status, type of insurance, duration of hemodialysis, the frequency of dialysis per week, being affected by filed diseases (diabetes and blood pressure), employment status, economic status, and education level, were collected using a questionnaire.

Then, a shorter questionnaire of health literacy (HELIA) that seemed more applicable due to its shorter completion time (7 to 10 minutes) were used. This tool included 33 questions and investigated health literacy in the fields of availability (6 questions), reading skill (4 questions), understanding (7 questions), assessment (4 questions), and decision – making, and using health information (12 questions) (27). The patients were asked to respond to this questionnaire. The researcher referred to hemodialysis ward of Baharlou Hospital to collect data and started sampling after obtaining permissions and providing guidance from hospital’s authorities.

Moreover, general health questionnaire (GHQ – 12), which was designed and developed by Goldberg and Hiller in 1979 and has four scales, was also used in this study (28). Scale A included physical symptoms such as feelings of the people about their health status, feeling of tiredness, and body symptoms. Scale B revealed anxiety symptoms, such as insomnia, and scale C showed symptoms of social performance dysfunction, such as the ability of people in coping with the professional demands and daily life issues and their feelings about everyday life. In addition, scale D included depression symptoms, such as severe depression and a specific tendency to suicide. The time of performing this test was considered 2 minutes on average, and it investigated the disease symptoms and positive health status of the individual over the past one month (one month before implementing the test). To score this test, we used Likert scale ranking method (0 – 1 – 2 – 3). The score of each person in each area was between 0 and 9 and between 0 and 36 in total.

The validity and reliability of Health Literacy Questionnaire have been investigated in the study of Montazeri et al. Thus, its validity has been confirmed using qualitative and structural content method, its reliability has been confirmed by Cronbach’s alpha method, and its alpha value has been reported to be 0.72 to 0.98 (27). In the study of Goldberg and Hiller, the internal consistency of this questionnaire was assessed by Cronbach’s alpha coefficient and found to be 0.80. The reliability of the questionnaire was also investigated by an analytical method of known groups.

The researcher distributed the questionnaires among the patients. After completion, the questionnaires were coded and entered into the software to be analyzed. This study was performed from April to July 2017.

Data were analyzed using SPSS Version 21 software. Descriptive statistics (mean, standard deviation, percentage, and frequency) were also used. Spearman’s correlation test was used to investigate the relationship between health literacy and general health. Kolmogorov – Smirnov test was used to investigate the normality of the variables. Significance level for all variables was less than 0.05. Data distribution was not normal, and thus non – parametric tests were used.

3.1. Ethical Considerations

Ethical considerations were as follow: obtaining an ethical code from the Ethics Committee of the University; obtaining the introduction letter from the faculty and presenting it to the hospital; obtaining the consent of patients before performing the study; respecting the patients at the time of performing the study; ensuring the privacy of patients’ information; and optional participation of the patients in the study.

4. Results

From 130 studied patients, 63.1% were male, and 83.1% of the patients were married. Most of patients were more than 60 years old (50.8%), unemployed (49.2%), and illiterate (47.7%). With respect to the variable of dialysis initiation time, the initial dialysis time for 60% of the patients was three years ago, it was between three to five years for 12.3% of the patients, and for the rest of the patients, it was more than five years. About supportive resources, 83.8% were supported by insurance, 13.1% by the Association for Supporting Kidney Patients, and the rest were supported by Relief Committee. About being affected by other diseases, 73.8% suffered from other diseases and 26.2% were only dialyzed and did not suffer from other diseases.

Table 1. Frequency and Percentage of Patients in Demographic Variables

Variable	Frequency	Percentage
Age, y
30 – 40	14	10.8
41 – 50	22	16.9
51 – 60	28	21.5
Over 60	66	50.8
Marital status
Married	108	83.1
Single	22	16.9
Job status
Employed	5	3.8
Retired	61	46.9
Unemployed	64	49.2
Gender
Male	82	63.1
Female	48	36.9
Education
Illiterate	62	47.7
Reading and writing	50	38.5
Guidance school and diploma	14	10.8
Higher education	4	3.1
Dialysis initiation time
One to three years	78	60
Three to five years	16	12.3
More than five years	36	27.7
Supportive resources
Insurance	109	83.8
The Association for Supporting Kidney Patients	17	13.1
Relief Committee	4	3.1
Being affected by other diseases
Yes	96	73.8
No	34	26.2
Total	130	100

The total health literacy score for the patients was obtained to be 46.81. Also, among the variables, decision – making and using health information obtained the highest mean with the score of 57.24.

Table 2. Mean and Standard Deviation of Health Literacy Scores by Dimensions

Aspects	Mean (of 100)	Standard Deviation
Availability	40.38	26.13
Reading skill	47.59	23.59
Understanding	50.98	31.1
Assessment	37.88	26.29
Decision – making and using health information	57.24	26.21
Total health literacy	46.81	22.87

The results revealed that health literacy of 53.8% of the patients was insufficient, 26.2% of them were not educated enough, 13.8% had adequate literacy, and 6.2% had excellent literacy.

Table 3. Description of Patients’ Status in Health Literacy Component

Status	Range of Scores	Frequency	Percentage
Insufficient literacy	0 – 50	70	53.8
Not enough health literacy	50.1 – 66	34	26.2
Adequate health literacy	66.1 – 84	18	13.8
Excellent health literacy	84.1 – 100	8	6.2
Total health literacy	0 – 100	130	100

Regarding the investigation of the general health status, the results showed that only 10.8% of the patients had not experienced any problems, 66.2% had mild problems, and 16.9% had moderate problems. In addition, 6.2% of the patients had severe problems.

Table 4. Description of the Patients’ Status in the General Health Component

Problem’s status	Range of scores	Frequency	Percentage
None or minimum	0 – 9	14	10.8
Mild	10 – 18	86	66.2
Average	19 – 24	22	16.9
Severe	28 – 36	8	6.2
Total	0.36	130	100

With respect to the investigation of the relationship between general health and health literacy and its aspects, the results revealed a significant and inverse relationship among understanding aspects, assessment, and decision – making and using information with the general health of patients (P < 0.05).

Table 5. Determining the Relationship between General Health and Health Literacy and Its Aspects^a

Component and Aspects of Health Literacy	Parameters	General Health
Availability	Correlation coefficient	– 0.118
	Significance level	0.183
Reading skill	Correlation coefficient	– 0.171
	Significance level	0.052
Understanding	Correlation coefficient	– 0.263
	Significance level	0.003
Assessment	Correlation coefficient	– 0.261
	Significance level	0.003
Decision – making and using information	Correlation coefficient	– 0.370
	Significance level	0.001
Total health literacy	Correlation coefficient	– 0.282
	Significance level	0.001

^aSpearman Correlation Test.

5. Discussion

The results revealed that the health literacy of 53.8% of the patients was insufficient, 26.2% did not have enough health literacy, 13.8% had adequate literacy, and 6.2% had excellent literacy. In the research of Karimi et al. (2014) (29), it was revealed that health literacy is the average or boundary, which is consistent with the results of the current study. National assessment of adults’ literacy in the United States in 2003 indicated that 36% of adults did not have adequate health literacy (30). Moreover, Williams (2002) (31) showed that health literacy level in the studied patients was very inadequate, which is consistent with the findings of the current study. However, there were other studies inconsistent with the results of this study. The results of the study of Tal (2012) on women who referred to Tehran University of Medical Sciences showed that the information literacy of more than 80% of them was adequate, which was inconsistent with the results of the current study. This difference may be due to the type of the studied patients because the studied patients in the current study were dialysis patients who often have lower education level and social status that could influence their informational literacy.

Considering the total average for informational literacy, the results also indicated that the total average obtained for the health literacy score was 46.81, and this average value is in the range of insufficient and inadequate health literacy. In the study of Rafi’ Zadeh in 2014 that was performed on the patients of the city of Gorgan, the average health literacy was found to be 86.7%, which was not consistent with the current study. The results of the study of MacLeod et al. (32) revealed that among the respondents, 23% and 16% of sicker and healthier patients, indicated inadequate HL, respectively.

As health literacy is a global issue and according to the World Health Organization (WHO), it plays a pivotal role in determining health inequalities whether in rich or poor countries (33), thus increasing knowledge and literacy of the patients is highly important in their improvement process. Health literacy is a concept that describes the ability of the patient to understand the information and the resources offered by physicians and experts (34), and it includes a range of simple and complex skills allowing the individuals to participate in treatment decision – makings and protect themselves, their families, and their society against diseases (35).

In general, this study indicated that the health literacy of patients is insufficient, as about 60% of them had inadequate health literacy. Thus, necessary steps should be taken to improve the health literacy level of the society. All parts of the society including mass media should try to enhance the health literacy of all people in the society by preparing health information plans appropriate to the requirements and ability of the audience. Moreover, they should help enhance health literacy level by creating simple and understandable educational media for people with low health literacy. In addition, experts in the health profession should prepare educational resources, such as websites and audiovisual materials, and brochures, to increase the public’s health litracy. It is expected that with improving the health literacy level of the people, the problems caused by inadequate health literacy be reduced.

Regarding the investigation of the general health status, the results showed that only 10.8% of patients had not experienced any problem, 66.2% had mild problems, 16.9% had moderate problems, and 6.2% had severe problems. Several studies investigated the psychological health of the people in Iran and other countries, which had differences and similarities to the current study in aspects of psychological health. In this regard, in his study, Mostafa Zadeh indicated that 94.73% of the studied samples had an average level of psychological health (36). The status of general health average score obtained in this study was higher than that of the study performed by Calnan et al. in England (37), which is consistent with the current study.

The inconsistency in the number and volume of samples, heterogeneity of sectors, and type of diseases can be considered as possible causes of this difference. Nevertheless, in all presented studies within and out of the country and in the current study, the rate of suspected cases of psychological disorders was higher than the general population. Information obtained in this field indicates that the suspected cases of psychological disorders in the general population in another country have been different from 21.67% to 24.5% (38, 39). The most important possible causes of higher prevalence rate of psychological health disorder in dialysis patients may be the stressful nature of this disease, exposure to unexpected situations, as well as individual factors.

The results of this study revealed a significant and inverse relationship between t health literacy and general health, indicating that with the increase in health literacy scores, the problems of patients in general health and its aspects decreased. This significant relationship has been reported in many studies. In the study of Macabasco et al. (2011), a significant statistical relationship was found between health literacy and general health of the patients, and similar to the present study, the patients with adequate health literacy had a higher quality of life (40). The results of the present study are consistent with those of the study of Song et al. (2012) who investigated the relationship between health literacy and quality of life relevant to the health of patients (41).

In the study of Wolf et al. (2005), the patients with insufficient health literacy level significantly reported lower average physical and psychological health (42). Also, in another study, it was found that the patients with higher health literacy level were more informed about their health status. In general, there is a direct relationship between health literacy and health status (43). A study was performed on Japanese adults and found that weak health literacy is associated with weak physical and psychological health status (44) because inadequate health literacy severely influences the knowledge of patients, self – care, health status, and hospitalization risks (45).

Regarding the limitations of the study, since the patients did not have good physical and psychological status before hemodialysis and at the beginning of hemodialysis due to the accumulation of toxins in their bodies, the questionnaire was completed within the last 30 minutes of hemodialysis or after completion of hemodialysis.

5.1. Conclusions

Health literacy significantly influences the different aspects of the general health of the patients. Thus, to increase the health literacy level of the people in the society, not only using approaches like simplifying the information and employing simple and understandable educational materials can be helpful, but also using communicative approaches and the help of health education experts would be useful in planning and designing helpful educational plans. Moreover, by considering the level of abilities and skills of the individuals, we can select the best educational approaches and take an effective step to develop the health literacy skills in the society. All parts of the society including mass media should be involved in developing the health literacy of individuals through providing health information plans appropriate to the needs and abilities of the audience. In addition, the experts in the health profession should prepare educational resources (including websites and audiovisual materials, brochures, or other forms of resources) to increase the health literacy of the general population.

Acknowledgements

Footnotes

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سایت تخصصی مدیریت خدمات بهداشتی و درمانی | HCSM

The Relationship between Health Literacy and General Health

The Relationship between Health Literacy and General Health Level of Hemodialysis Patients: A Case Study in Iran

Article information

Abstract

1. Background

2. Objectives

3. Methods

4. Results

5. Discussion

Acknowledgements

Footnotes

References

نوشته های مرتبط

این مطالب را نیز ببینید!

تابلوی تقاضای القایی ارائه کنندگان خدمات تشخیصی درمانی در جهان؛ یک مرور حیطه ای

The Relationship between Health Literacy and General Health

The Relationship between Health Literacy and General Health Level of Hemodialysis Patients: A Case Study in Iran

Article information

Abstract

1. Background

2. Objectives

3. Methods

4. Results

5. Discussion

Acknowledgements

Footnotes

References

نوشته های مرتبط

مشاوره و ویزیت پزشکی آنلاین

فهرست شماره 3 نشریه طلوع بهداشت دانشگاه علوم پزشکی شهید صدوقی یزد

کتاب اصول و مبانی مدیریت سلامت در بلایا منتشر شد(منبع درس دانشگاهی)

این مطالب را نیز ببینید!

تابلوی تقاضای القایی ارائه کنندگان خدمات تشخیصی درمانی در جهان؛ یک مرور حیطه ای