Depression, anxiety and spirituality in oncology patients

SUMMARY

OBJECTIVE

To relate anxiety and depression levels to the spirituality levels of oncology patients in the ABC region.

METHODS

Cross-sectional study performed at the ABC University Center oncology outpatient clinics. For the evaluation of spirituality, the Religiosity, Spirituality, and Personal Beliefs instrument of the World Health Organization (SRPB-WHO) was applied. To evaluate the levels of depression and anxiety, the Hospital Anxiety and Depression Scale (HADS) was applied. Qualitative variables were described by frequency and percentage, and quantitative variables by mean and standard deviation or median and range. Relationships were established using either the T-test or Wilcoxon-Mann-Whitney test and correlations with Pearson or Spearman tests, depending on the normality assessed by the Shapiro-Wilk test.

RESULTS

We included 99 patients, 68% female, with a median age of 60 years (19 to 81). A total of 24% had high or borderline levels of anxiety and 21% of depression. There was a negative correlation between levels of depression and spirituality (rho = -0.44, p <0.001), and anxiety and spirituality (rho=-0.232, p=0.02). We found no significant difference between levels of anxiety, depression, or spirituality when stratified by schooling, income, ethnicity, or marital status. There was a positive correlation between levels of anxiety and depression (cor = 0.477, p <0.001).

CONCLUSION

Spirituality can be a complementary tool in the treatment of patients with cancer.

Neoplasms; Spirituality; Depression; Anxiety

RESUMO

OBJETIVO

Relacionar os níveis de ansiedade e depressão com os de espiritualidade dos pacientes oncológicos da região do ABC.

MÉTODO

Estudo transversal realizado nos ambulatórios de oncologia do Centro Universitário ABC. Para avaliação da espiritualidade, foi aplicado o questionário Religiosidade, espiritualidade e crenças pessoais da Organização Mundial da Saúde (SRPB-WHO). Para avaliar os níveis de depressão e ansiedade foi aplicado a Hospital Anxiety and Depression Scale (Hads). Variáveis qualitativas foram descritas por frequência e porcentagem, as quantitativas por média e desvio padrão ou mediana e intervalo. Relações foram feitas por meio do teste de t ou Wilcoxon-Mann-Whitney e correlações pelo teste de Pearson ou Spearman, a depender da normalidade avaliada pelo teste de Shapiro-Wilk.

RESULTADO

Foram incluídos 99 pacientes; 68% do sexo feminino, mediana de idade 60 (19 a 81); 24% tiveram níveis altos ou limítrofes para ansiedade e 21% para depressão. Foi observada correlação negativa entre os níveis de depressão e espiritualidade (rho=–0,44, p<0,001) e ansiedade e espiritualidade (rho=–0,232, p=0,02). Não foi observada diferença entre os níveis de ansiedade, depressão ou espiritualidade ao estratificar por escolaridade, renda, etnia ou estado civil. Houve correlação positiva entre os níveis de ansiedade e depressão (cor=0,477, p<0,001).

CONCLUSÃO

A espiritualidade pode ser uma ferramenta complementar a ser utilizada no tratamento do paciente com câncer.

Neoplasias; Espiritualidade; Depressão; Ansiedade

INTRODUCTION

Neoplasms, based on estimates from the World Health Organization (WHO), will be the leading cause of death, surpassing coronary heart disease¹ . Demographic and epidemiological transitions caused an increase in the number of cases of cancer, in particular in developing or underdeveloped countries² .

Regarding Brasil, an increase in mortality is expected due to cancer, particularly in the North and Northeast regions of the country, by 2030³ . Cancer patients, in comparison with patients without the disease, exhibit more symptoms such as fear, despair, emotional and physical exhaustion, and, as a consequence, higher rates of depression and anxiety⁴ .

As to psychiatric disorders, anxiety disorders and depression are the most incident worldwide⁵ . The World Health Organization, in its Dalys Brasil instrument, makes it clear that neuropsychiatric disorders occupy the second position, after cardiovascular disorders and diabetes. The clinical scenario is often similar and may become chronic or recurrent, affecting the individual’s performance and abilities⁶ . Thus, these diseases are directly related to a reduction in quality of life and increased mortality and morbidity⁷ .

It is estimated that 3.6% of the world population suffers from anxiety disorders, and females are the most affected. The prevalence of anxiety in the Brazilian population reaches 9.3%⁵ . The WHO estimates that approximately 300 million people worldwide are affected by depression disorders (4.4% of the population), which are the main cause of disability⁵ .

However, the rates of depression vary between different countries, which shows that cultural differences and different risk factors affect the expression of the disease⁸ .

In Brasil, it is estimated that the prevalence of depressive disorders in the general population is around 5.8%, and it is more often found in female patients⁵ . A meta-analysis identified that approximately 27% of outpatients have depression or depressive symptoms, varying according to the specialty⁸ .

Thus, the data show that Brasil is the country with the highest prevalence of anxiety disorders and the fifth in the ranking of depression⁵ .

spirituality has been increasingly used and recognized as a tool for overcoming this issue and as a complementary treatment for cancer patients⁹ .

Recently, themes such as spiritual well-being and spirituality have been increasingly studied in patients in general, especially in those with cancer¹¹ .

Thus, considering the connections between neoplasms and psychiatric diseases, it makes sense to evaluate the prevalence of the two most common psychiatric disorders (GAD and MDD) in patients undergoing cancer treatment, as well as analyze the relationships between these diseases and spirituality in these patients.

OBJECTIVES

• Assess the level of spirituality of a population of cancer patients treated in outpatient clinics of the Faculty of Medicine of ABC (FMABC).

• Assess possible correlations between the level of spirituality, demographic variables, and presence of anxiety or depression by the Hospital Anxiety and Depression Scale (HADS).

METHODS

A descriptive, cross-sectional, and observational study, in which we evaluated the prevalence of major depressive disorder (MDD) and generalized anxiety disorder (GAD) in a group of consecutive patients aged over 18 years and treated in outpatient clinics of the Faculty of Medicine of ABC.

The assessment was carried out through the application of a questionnaire for the patients.

The questionnaire used the Hads¹³ scale for anxiety and depression. In addition, patients’ epidemiological and demographic factors were discussed, such as age, sex, race, and marital status. Patients’ habits were also assessed, such as the use of alcohol, tobacco, and illicit drugs and the practice of physical activity.

Finally, we analyzed the socioeconomic data, such as average family income (in minimum wages) and formal education. To assess their spirituality, we used the World Health Organization Quality of Life instrument - Spirituality, Religiousness, and Personal Beliefs module (WHOQOL-SRPB)¹⁴ .

The inclusion criteria were patients treated in the oncology clinics of the Faculty of Medicine of ABC and their corresponding hospitals and the completion of the ICF.

The exclusion criterion: incorrect or incomplete filling of the questionnaire.

STATISTICAL ANALYSIS

The data collected were tabulated and subsequently submitted to statistical analysis. The categorical variables were analyzed for frequency and percentages.

For the continuous variables, was used averages or medians, based on the distribution of the data. We used the Shapiro-Wilk test to determine whether the distribution of the data was parametric or not.

In the continuous data with normal distribution, we used the Pearson’s correlation test. For continuous data with non-parametric distribution, we used the Spearman correlation test.

For qualitative data, we used the Fisher test or the chi-square test, depending on the size of the sample. Continuous data with qualitative outcomes and normal distribution were evaluated by t-test; and data with non-normal distribution were evaluated by the Mann-Whitney test.

Finally, the Anova and Kruskal-Wallis tests were applied to analyze the different demographic subgroups, based on the distribution of the data.

P values lower than 0.05 and a confidence interval of 95% were considered significant.

RESULTS

We included a total of 99 patients. Demographic data are described in Table 1 . Most patients were female (68.6%), married (55.7%), white (64.4%) and with incomplete elementary education (32.9%)

TABLE 1
PATIENTS’ DEMOGRAPHIC AND SOCIOECONOMIC DATA AND HABITS

Variable	N	%
Sex	99
Male	31	31.31
Female	68	68.68
Marital Status	95
Married	53	55.78
Single	17	17.89
Divorced	9	9.47
Widow(er)	16	16.84
Color	90
White	58	64.44
Black	8	8.88
Brown	22	24.44
Yellow	2	2.22
Formal education	97
Illiterate	2	2.06
IEE	32	32.98
CEE	20	20.61
IUSE	4	4.12
CUSE	28	28.86
IHE	3	3.09
CHE	8	8.24
Alcohol use	99
Yes	86	86.86
No	13	13.13
Smoking	99
Yes	16	16.16
No	81	81.81
Former smoker	2	2.02
Illicit drug use	99
Yes	2	2.02
No	97	97.97
Physical activity	99
Yes	30	30.30
No	69	69.69
Variable	Median	Range
Age	60	19-81
Income (R$)	2000	0-15000

• Legend: IEE = Incomplete Elementary Education; CEE = Complete Elementary Education; IUSE = Incomplete Upper Secondary Education; CUSE = Complete Upper Secondary Education; IHE = Incomplete Higher Education; CHE = Complete Higher Education

Regarding the patients’ habits, most drank at least socially (86.8%), 16.6% were smokers, and 2% former smokers; 69.6% were sedentary.

Upon completion of the Hads questionnaire for depression and anxiety, we observed that 24.24% of the patients had borderline or high levels of anxiety and 21.21 of depression.

The results on the relationships between the levels of anxiety, depression, and spirituality between themselves and between the demographic and socioeconomic data analyzed are presented in Table 2 .

TABLE 2
RELATIONSHIP BETWEEN THE LEVELS OF ANXIETY, DEPRESSION, AND SPIRITUALITY AND THE DEMOGRAPHIC AND SOCIOECONOMIC DATA.

	SRBP		HADS anxiety		HADS Depression
Variable	rho	p	rho	p	rho	p
Age	-0,042	0,676	-0,070	0.49	0,047	0,641
Income	-0,101	0,365	-0,141	0,206	0,123	0,912
Variable	Median	p	Median	p	Median	p
Formal education
Higher	128	0,442	6	0,498	2	0,426
Non-higher	132		4		4.5
Marital status
Married	133	0,562	4	0,693	4	0,579
Single	129		5		5
Ethnicity
White	129	0,226	4.5	0,792	4	0,878
Non-white	136		5		5
Gender
Male	127	0,295	3	0,050	2	0,214
Female	132		6		5

We observed a negative correlation between the levels of depression and spirituality (rho = -0.44, p<0.001) ( Figure 1A ) and the levels of anxiety and spirituality (rho = -0.232, p=0.02) ( Figure 1B ). No significant difference was observed between the levels of anxiety, depression, or spirituality upon stratification by formal education, income, ethnicity, or marital status.

FIGURE 1
CORRELATION BETWEEN THE LEVELS OF SPIRITUALITY ACCORDING TO THE WHOQOL-SRBP AND DEPRESSION (1A) AND ANXIETY (1B) BASED ON THE HADS

Finally, there was a positive correlation between the levels of anxiety and depression (cor=0.477, p<0.001).

DISCUSSION

Spirituality appears as an important ally for people who find themselves in adverse situations, particularly patients with psychiatric disorders and cancer patients⁹ .

Increasingly, spirituality presents itself as an alternative and coping strategy in the face of situations considered difficult and impactful, as is the case of the diagnosis and treatment of cancer, which produces several stressful events. Some of the positive strategies associated with spirituality are: improvement of mental health, reduction of stress, spiritual growth, and colaboration¹⁵ . The purpose of this study was to evaluate if correlations between the level of spirituality, demographic variables, and the presence of anxiety or depression are reproduced in our population.

According to the data studied, 21% of the patients had borderline or high levels of depression, and there was a negative correlation between depression and spirituality. The findings of our study corroborate data from the literature, which found a negative correlation between depression and spirituality¹⁶ . These findings suggest that the spiritual well-being, obtained from giving meaning to life or through religious practice, combined with physical well-being, is useful for handling depression.

The fact that spirituality is negatively correlated with depression and anxiety stressed the significant role of the spiritual state in the daily clinical practice of palliative care and for the preservation or improvement of emotional suffering, as well as in the control of symptoms¹⁸ . It is worth noting that often there are factors that can influence patients’ stage of depression, such as the time of diagnosis of neoplasia, age, among others, and these affect the positive understanding of spirituality.

We found that the higher the level of spirituality, the lower the level of anxiety. Although this finding is observed in other studies in the literature, the causal relationship and attempts at an explanation for this phenomenon vary and are still a topic for speculation¹⁹ . The findings suggest that the search for a meaning to life, peace and understanding of the universe through faith make the individual more aware of the process of becoming ill and the natural course of the disease itself, making the experience of the diagnosis, treatment, and follow-up more optimistic and positive. Prayer, through spirituality, also reliefs tension and increases hope, reducing the levels of anxiety²⁰ .

We observed a positive mean correlation between anxiety and depression evaluated by the Hads in our patients. Both depressive and anxiety disorders can lead to significant losses in the functioning of individuals, such as decreasing their self-esteem and increasing hopelessness in the case of depression, and feelings of fear and behavioral disturbance in anxiety. Although they are different disorders, symptoms may appear together²¹ . Beck et al.²² reported that anxiety is a disorder often presented by depressive patients, particularly when they experience a worsening of depression.

In our study, we observed women tend to have more anxiety (p=0.05) in comparison with men.

Women have higher rates of prevalence of anxiety and mood disorders than men, who tend to have more problems related to the use of psychoactive substances and antisocial and schizotypal personality disorder. Female sex steroids, particularly estrogen, act in the modulation of mood, which explains the higher prevalence of mood and anxiety disorders in women²³ .

For Barlow²⁴ , women are more susceptible to stressful events in childhood and adolescence, which is associated with the perception that their behaviors cause little impact in the environment and may lead to a feeling of lack of control and the consequent development of pessimistic patterns of assessment of reality.

Limitations

This is a cross-sectional and observational study, therefore, relations of cause and effect cannot be established.

CONCLUSION

We found high levels of depression and anxiety among cancer patients. There was a negative correlation between the presence of depression and spirituality in these patients, which leads us to conclude that spirituality can be a complementary tool in the treatment of patients with cancer.

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Publication Dates

• Publication in this collection
  24 Aug 2020
• Date of issue
  July 2020

History

• Received
  01 Jan 2020
• Accepted
  19 Jan 2020