The present study was designed as descriptive and correlational research.
Population and sample
The study population consisted of patients on hemodialysis treatment in a university hospital and a private dialysis center.
Sample
The size of the study sample was calculated based on dependent variables. A previous study reported that spiritual health was one of the negative predictors of depression in hemodialysis patients (Upper: 0.90, Lower: 0.75, R2: 0.58) (24). based on the results of above study, the sample size was calculated using the G*Power software Version 3.1.9.7. Accordingly, it was found that the sample size should be at least 115 with a power of 0.80 and a margin of error of 0.05. The study sample included 119 individuals. The post hoc power of the study was 0.84.
Inclusion criteria
Individuals, who aged older than 18 years, started HD treatment at least 6 months ago, and had no communication barriers were included in the study, where 8 individuals, who were in the terminal period, continued cancer treatment, and had cognitive problems were excluded.
Data Collection Forms and Data Collection
"Socio Demographic Information Form", "Beck’s Depression Inventory", "Spiritual Care Needs Scale," and "Dialysis Symptom Index in Chronic Hemodialysis Patients" were used for data collection purposes.
Socio Demographic Information Form
The form was developed by the researchers based on the relevant literature.(25–27) The form included a total of 12 sociodemographic and disease-related items.
Beck’s Depression Inventory
Beck’s Depression Inventory (BDI) was developed by Beck et al. and its Turkish validity and reliability study was conducted by Hisli. BDI can be used to assess the severity of depression in both healthy and psychiatric populations. It was designed as a 21-item self-report inventory. The Beck’s Depression Inventory (BDI) assesses cognitive, behavioral, emotional, and somatic dimensions of depression. The assessment is based on the last 2 weeks, including the assessment day. The four-point Likert-type scale consists of twenty-one items. Each item assesses symptom severity on a scale of 0–3. BDI items are presented with four possible responses of ''(0) I do not feel sad, (1) I feel sad, (2) I am sad all the time and I can't snap out of it, (3) I am so sad or unhappy that I can't stand it". The total score ranges between 0–63. A BDI score of 0–9 points is associated with minimal depression, where 10–16 points with mild, 17–29 points with moderate, and 30–63 points with severe depression. The Cronbach's alpha coefficient of the Turkish scale was 0.74 (Hisli, 1989). The alpha value for this study was 0.83.
Spiritual Care Needs Scale
The Scale of Spiritual Care Needs (SCNI) was developed by Wu et al. (28), and its Turkish validity and reliability were studied by Günay İsmailoğlu et al. (2019). The scale was aimed to assess spiritual care needs regardless of the type of illness and religious beliefs. It was designed as a twenty-one-item scale. Patients are asked to rate the need for spiritual care for themselves on a 5-point Likert scale. The possible responses are 1="Not at all necessary", 2="Not necessary", 3="Does not matter", 4="Necessary", 5="Absolutely necessary". An increase in the mean total score of the scale is indicative of a higher need for spiritual care. There are two sub-domains in the scale; namely "meaning and hope" and "care and respect". The “meaning and hope” component includes expressions of spiritual well-being in relation to self, nature, and environmental factors; where the caring and respect component includes expressions in relation to relationships with others. "Meaning and hope" subdomain consists of the items 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 14; while the "Caring and respect" subdomain includes 13, 15, 16, 17, 18, 19, 20, and 21. For scoring the scale, the scores of each subdomain are summed. The minimum and maximum possible score from the scale is 21 and 105, respectively. The scale has no cut-off point, and an increase in the score is indicative of an increase in the patient's spiritual care needs. Cronbach's alpha coefficient of the Turkish scale was 0.94 (29). The alpha value for this study was 0.88.
Dialysis Symptom Index in Chronic Hemodialysis Patients
The Dialysis Symptom Index (DSI) was developed by Weisbord et al. with an aim to investigate the symptoms experienced by HD patients and their level of impact on the patient (2004).(30) The Turkish validity and reliability of the scale was studied by Önsöz and Usta Yeşilbalkan (2013). This scale inquiries the symptoms experienced by individuals in the last seven days. There are 30 items included in the five-point Likert-type scale. Scoring is based on the following responses: 1 = none, 2 = somewhat, 3 = sometimes, 4 = very little, 5 = very much. Individual scores are summed to obtain a total scale score. The total score ranges between 30–150, with higher scores are indicative of increased symptom burden. The scale does not have a cut-off point. The Cronbach's alpha coefficient of the Turkish scale was 0.83 (31). The alpha value for this study was 0.78.
Data Collection
Data were collected by face-to-face interview by the investigators in the HD unit, protective measures were taken for the risk of infection, patients were briefed, and their verbal and written consents were obtained. Data collection period was approximately 20 minutes.
Variables of the Study
Dependent variable: Depression score, symptom burden score, spiritual care need score was set as independent variables: Sociodemographic and disease-related characteristics.
Ethical Dimension of the Research
Relevant permissions were obtained from Necmettin Erbakan University Health Sciences Scientific Research Ethics Committee (2024/695) and hemodialysis unit. The STROBE checklist and the World Medical Association (WMA) Declaration of Helsinki were followed at all stages of the study.
Statistical Analysis
The Statistical Package for Social Sciences (SPSS) version 29.0 software was used for the purposes statistical analyses in the scope of the study. Mean and standard deviation were used for continuous variables and number and percentage were used for categorical variables. The hypothesis of normal distribution for continuous tested by an analysis of the Skewness and Kurtosis values, where a range of -1/+1 was considered normal, and the histogram and bell curve were also taken into consideration. BDI total score did not meet normal distribution hypothesis, while all other variables were normally distributed. Levene's test statistic was used to see the homogeneity of variances.
Independent samples t test and One-way ANOVA tests were used for data, which met normal distribution hypothesis. For one-way analysis of variance, Welch’s t-test (Robust test in one-way heteroscedastic ANOVA) statistic was used in cases where variances were not distributed homogeneously. Mann-Whitney U Test and Kruskal-Wallis H Test were used to analyze the data that were not normally distributed. Bonferroni and Tamhane's T2 post hoc multiple comparison tests were used to understand the source of the difference between the groups. The Pearson and Sperman Correlation analysis were used to understand the relationship between continuous variables. It was considered that a correlation coefficient indicated a weak relationship between r = 0.1–0.3, a moderate relationship between r = 0.3–0.7, and a high relationship between r = 0.7-1.0. Reliability analyses for the total scale scores were conducted using Cronbach's α method. A p level of < 0.05 was considered statistically significant in all tests.
The results of the analysis of the study were presented in the order of the distribution of the scale scores used, reliability scores, comparison of scale scores with descriptive findings, and correlation analysis:
Table 1
Scale score distributions and reliability coefficients
| BDI | SCNI | DSI |
Skewness | 1,798 | ,164 | ,662 |
Std. Error of Skewness | ,222 | ,222 | ,222 |
Kurtosis | 4,665 | -,763 | -,622 |
Std. Error of Kurtosis | ,440 | ,440 | ,440 |
Cronbach's alpha coefficient | 0.83 | 0,88 | 0,78 |
The normality distributions and reliability coefficients of the scales used in this study are given in Table 1 (Table 1).