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Alergologia Polska - Polish Journal of Allergology
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1/2023
vol. 10
 
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Original paper

The effect of stress on the onset of chronic spontaneous urticaria in the elderly

Nida Öztop
1
,
Şengül Beyaz
2

  1. Division of Adult Immunology and Allergic Diseases, İstanbul Başakşehir Çam and Sakura City Hospital, İstanbul, Turkey
  2. Division of Adult Immunology and Allergic Diseases, Ankara City Hospital, Ankara, Turkey
Alergologia Polska – Polish Journal of Allergology 2023; 10, 1: 57–62
Online publish date: 2023/03/14
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Introduction

Chronic urticaria (CU) is a skin lesion which is characterized by wheals, angioedema, or both for at least 6 weeks and classified into 2 groups including “Chronic Spontaneous Urticaria (CSU)” and “Chronic Inducible Urticaria (CIndU)” [1]. CSU has an increasing prevalence in all age groups and can be a result of lower quality of life [1]. Worldwide population demographics are changing due to an increasing population of the elderly and CSU can be determined in elderly patients the same as adults [2]. In a study, it has been reported that the prevalence of CSU among adults was 0.23% in the United States and more of them were over 50 years [3]. With the increasing elderly population, it is thought that the frequency of urticaria may increase in the elderly. Although many studies in the literature evaluate the prevalence and treatment of CSU in adults and children, there are limited data on the prevalence and mechanism of occurring urticaria in the elderly population [4].
It is well known that multiple triggers like stress, inflammation, autoimmunity, and infection can play a role in the CSU etiology [5]. Several times, in the literature, it has been shown that psychological disorders including post-traumatic stress disorders, depression, and anxiety can be seen in patients with CSU as prevalence range from 32% to 34%, most patients with CSU are thought to suffer from general psychological disorders [6–8] and psychological comorbidities are higher among patients with CSU than healthy population [8]. The fact that urticaria is a mast cell (MC)-related disease is confirmed by the demonstration of MC degranulation in the skin lesion of patients with CSU and increased histamine level in the skin lesion, as well as the positive response to antihistamine treatment [9]. It has been suggested that the skin is both a stress sensor and a target organ in which stress reactions occur through interactions between the hypothalamic-pituitary-adrenal axis, proinflammatory cytokines, mast cells, T cells, and inflammatory neurogenic pathways. This hypothesis explains the possible link between psychological stress and urticaria [10].
It has been argued that the lack of awareness and cognitive impairment associated with stress are factors that make the elderly more susceptible to immune-mediated diseases and death due to environmental poverty and lack of stimuli [11].

Aim

As mentioned before, since stress increases MC-related diseases and the increased stress associated with aging in the elderly is known, our aim of this study was to examine whether there was a relationship between the onset of urticaria and previous stressful life events, disease activity, and perceived general stress in the elderly age group.

Material and methods

Patient selection and study design
This real-life and cross-sectional study included 164 elderly patients who were attended the adult allergy outpatient clinic with CSU according to the recent urticaria guidelines [1]. Elderly patients were defined as patients aged  65 years according to the World Health Organization definition [12]. Patients with CSU using or not using antihistamine were included into the study, however, patients who did not obtain to included in the study, having a diagnosed psychiatric disease or using antipsychiatry and sedative drugs, and patients that could not give an anamnesis by themselves were excluded from the study.
Başakşehir Çam and Sakura City Hospital’s ethics committee approved this study (Approval Number 2022.06.205) in accordance with the Declaration of Helsinki and written informed consent was obtained from all patients.
Clinical data collection
Demographic and clinical characteristics of the patients including body mass index (BMI), sex, age, disease duration, smoke habits, and occupation information were collected from the patients’ records. To evaluate the urticaria activity of the patients, Turkish validated seven days Urticaria Activity Score (UAS7) was used [13]. According to UAS7, patients were classified as severe CSU (UAS7 = 28–42), moderate CSU (UAS7 = 16–27), mild CSU (UAS7 = 7–15), and well-controlled CSU (UAS7 = 0–6) [1, 13]. Baseline medication score (MS) was assessed by the physicians; accordingly, the following scores were applied for each drug: antihistamines (regular dose: 2 points; four times the standard dose: 8 points), corticosteroids (prednisone < 11 mg or equivalent: 5 points; prednisone: 11–25 mg or equivalent: 10 points; prednisone > 25 mg or equivalent: 15 points), cyclosporine (3 mg/kg: 8 points) and hydroxychloroquine (6 points) and montelukast (2 points) [14].
Evaluation of stress
The patients were questioned by the physicians to respond “yes” or “no” to evaluate having stress. And, questions if the patients had stress, about stress-related events including fear of death, economic problems, death or severe illness of a close relative, divorce history, having a newly diagnosed concomitant disease, changing the living area, inability to work after retirement, worsening of concomitant diseases, start to live alone or patient care of a close relative were asked by physicians. Also, patients were questioned about their opinion on the relationship between having a stressful event and the onset of urticaria as “yes” or “no”. The severity of stress level was assessed by using 10-point Visual Analogue Scale (VAS), which is a Likert scale [15]. On the VAS, patients were asked to score their stress levels from 0 to 10 and a score of zero was considered as no stress, a score of 10 was considered the highest stress score. Patients were divided into two groups according to the VAS, and, VAS ≤ 5 was considered as patients with no stress (Group 1), and VAS > 5 was considered as patients with stress (Group 2) [15].
Ethics statement
The study protocol was approved by Başakşehir Çam and Sakura City Hospital Ethics Committee (Approval Number 2022.06.205). The study was conducted in accordance with the principles of the Declaration of Helsinki. All participants were informed about the nature of the study and written informed consent was obtained.
Statistical analysis
The data were analyzed using the Statistical Package for Social Sciences (SPSS Inc. Armonk, NY, USA) v25.0, and GraphPad Prism Software 8 (San Diego, CA, USA) was used for obtaining the figure. Demographic and clinical features were assessed by descriptive analysis and shown as percentages and mean ± standard deviation or median with interquartile range (IQR) 25–75 according to the data distribution. The Kolmogorov-Smirnov test was conducted to assess the distribution pattern of the quantitative data. Continuous variables were compared by independent T test or Mann-Whitney U test between two groups according to the data distribution. The categorical variables were compared with the χ2 test. For the correlation between having stress and urticaria onset, and between VAS and UAS, Spearman and Pearson correlation analysis was used. In all analyses, p-values < 0.05 were considered statistically significant.

Results

Demographic and clinical characteristics of the patients
The mean age of the patients was 69.96 ±4.37 years and more than half of the patients (n = 116, 70.7%) were female. While 28% (n = 46) of patients had smoking habits, none of them had alcohol habits. Concomitant angioedema history was determined in 42.7% (n = 70) of patients, and 130 (79.3%) patients had comorbid diseases including diabetes, hypertension, thyroid disease, cardiovascular diseases, autoimmune diseases, or others. According to UAS7, 51 (31.1%), 23 (14%), and 90 (54.9%) patients had mild, moderate, and severe urticaria, respectively. The demographic and clinical characteristics of the patients were summarized in Table 1.
Results of having a stressful life event and correlation analysis between stress and onset of urticaria
One hundred (61%) patients had at least one stressful life event within three months of the onset of urticaria. While the most common stressful event reason was the economic problem (n = 31, 18.9%), the second most common reason was the death or serious illness of a close relative (n = 22, 13.4%). The reasons of the stressful event were summarized in Table 2. The median VAS score of patients was 5.92 ±1.83 points. When the patients were questioned about their opinion on the relationship between having a stressful life event and the onset of urticaria, there was a strong correlation between the two (r = 0.871, p < 0.001). Additionally, a positive correlation was determined between VAS and UAS7 (r = 0.418, p < 0.001) (Figure 1).
Comparison analysis of demographic and clinical characteristics of patients of two groups
While 66 (40.2%) patients were in Group 1, 98 (59.8%) patients were in Group 2. There were no significant differences in gender, age, BMI, and smoking habits between the two groups (p > 0.05 for each). Concomitant disease history and UAS7 were significantly higher in Group 2 than in Group 1 (p = 0.018 and p < 0.001, respectively). Additionally, when we compared the urticaria severity in two groups according to UAS7, mild urticaria was significantly lower in Group 2 than in Group 1 (n = 20 (20.4%) vs. 31 (47%), p < 0.001), whereas severe urticaria was significantly higher in Group 2 than in Group 1 (n = 67 (68.4%) vs. 23 (34.8%), (p < 0.001)). The comparison analysis between the two groups was summarized in Table 3.

Discussion

CSU in elderly patients, having stressful life events should be questioned and multidisciplinary management including psychiatry consultation and geriatric consultation should be done for the elderly with CSU.

Conflict of interest

The authors declare no conflict of interest.

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Copyright: © Polish Society of Allergology This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivatives 4.0 International (CC BY-NC-SA 4.0). License (http://creativecommons.org/licenses/by-nc-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.


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