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Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii
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Original paper

Obsessive compulsive symptoms in mothers of children with atopic dermatitis

Velat Celik
1
,
Burcin Beken
1
,
Isık Gorker
1
,
Pinar Gokmirza Ozdemir
1
,
Necdet Sut
1
,
Mehtap Yazicioglu
1

  1. Department of Paediatric Allergy and Immunology, Faculty of Medicine, Trakya University, Edirne, Turkey
Adv Dermatol Allergol 2023; XL (3): 411–415
Online publish date: 2023/07/16
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Introduction

Atopic dermatitis (AD) is a common inflammatory skin disorder characterized by itch and sleep disturbance [1]. Atopic dermatitis is difficult to manage. The caregivers may expend considerable effort to manage this troublesome disease. Efforts may include managing medications, devoting more time, providing reassurance, attempting to control itching, cooking special foods while avoiding others, and more [2]. Childhood AD can have a profound emotional, social and financial burden on family members, especially on mothers [2].

Faught et al. [3] reported that the mothers of young children with eczema attending hospital-based clinics experience significant stress, with 46% having a total stress score that requires professional consultation. The stress of caring for children affected by AD can cause some parents to feel anxious, depressed, and helpless [2, 4, 5]. On the other hand, maternal preconception and prenatal stress is found to be associated with AD in the offspring [57].

Obsessive compulsive disorder (OCD) is a complex condition characterized by recurrent intrusive, unwanted thoughts, urges, or images (obsessions) and repetitive behavioural or mental acts (compulsions) [8]. Obsessions cause distress and anxiety, and the compulsions aim to reduce anxiety, distress or prevent some dreaded situation. Over 90% of patients with OCD meet criteria related to other psychological disorders, including anxiety disorders, depression, personality disorders, bipolar disorder, eating disorders, and schizophrenia [9, 10]. The most common comorbid diagnoses are anxiety disorders (75.8%) [11].

Aim

Although the association between AD and maternal stress, depression and anxiety has been relatively well studied, data regarding the association between AD and maternal obsessive compulsive symptoms (OCS) are lacking. In this study, we aimed to investigate the relationship between infantile AD and maternal OCS.

Material and methods

Study population

This study was a cross-sectional survey conducted at the Paediatric Allergy Department of Trakya University Medical School (Edirne, Turkey) between March 2019 and September 2019. A total of 75 children with AD younger than 24 months and their mothers were included in the study. Atopic dermatitis was diagnosed by paediatric allergists involved in this study, according to the criteria defined by Hannifin and Rajka [12]. SCORing Atopic Dermatitis (SCORAD) index was used to evaluate the severity of AD. The control group included mothers of 76 healthy children younger than 24 months who visited the general practitioners for routine physical examination or vaccination.

Questionnaire

Paediatric allergists from the study team completed questionnaires via face-to-face interviews with mothers from both groups. The questionnaire solicited information on the infant’s age and sex, maternal age, maternal educational level, monthly household income and number of children in the family.

Assessment of obsessive compulsive symptoms

The Maudsley Obsessive Compulsive Inventory (MOCI) was developed by Hodgson and Rachman [13] in 1977 to measure OCS. The validity and reliability of the Turkish version of MOCI (MOCI-T) was demonstrated by Erol and Savasir [14] in 1988 [15]. The original questionnaire consists of 30 self-administered yes/no choice questions. The Turkish version has seven additional questions, for a total of 37 questions. The MOCI-T reports a score on five obsessives–compulsive subtypes that include washing/cleaning (11 items), checking (9 items), slowness (7 items), doubting (7 items), and rumination (7 items). Some items in the inventory are repeated in subtypes; they are only counted once to create the total score. The cut-off of the MOCI-T total score or subscales score has not been determined for the Turkish population. Higher scores reflect increased severity of OCS [15]. In our study we used MOCI-T to measure the presence of OCS.

Statistical analysis

We performed statistical analysis using the IBM SPSS Statistics for Windows, V.25.0 (IBM, Armonk, New York, USA). The continuous variables were investigated using visual methods (histograms, probability plots) and analytical methods (Shapiro-Wilk’s test) to determine whether they were normally distributed. Demographic data were presented as median (Inter quartile range (IQR)) for continuous data and as numbers and percentages for categorical variables. Possible associations between total MOCI-T scores/subscale scores and AD group were assessed with the Mann-Whitney U test due to non-normal distribution. Spearman correlation tests were used to determine the relationship between MOCI-T and the SCORAD index. P-values < 0.05, 2-sided, were considered statistically significant. A post hoc power analysis was applied based on the total MOCI-T score. The power of the study was calculated to be 81%, with an α level of 5% and an effect size of 0.465.

Ethical approval

The procedures followed were in accordance with the Helsinki Declaration of 1975, as revised in 2000, and with the ethical standards of the responsible committee on human experimentation (institutional and national). The Ethics Review Committee at the Trakya University Medical Faculty approved the study (approval number TÜTF-BAEK 2019/146). We obtained written informed consent from all participants.

Results

The study group included 75 AD patients and their mothers, and 76 healthy controls and their mothers. Ninety (59.6%) of the children were female and 61 (40.4%) were male. The median age of children with AD was 8 months, and the median age of healthy children was 6 months. A comparison of demographic variables for the children and their mothers is shown in Table 1. We did not find any statistically significant differences between the AD group and the healthy control group in terms of children’s age, gender, mothers’ age, mothers’ education level, family monthly income, or the number of children in the family (Table 1). A comparison of MOCI-T and its subscales between AD and the control group was performed (Table 2). Total MOCI-T score and slowness, doubt, and rumination subscale scores were higher in the AD group (p = 0.007, p = 0.001, p = 0.012 and p = 0.011, respectively). The washing/cleaning and checking subscale scores did not reach a statistically significant difference (p = 0.203 and p = 0.053, respectively).

Table 1

Demographic variables of children and mothers

ParameterAD groupHealthy groupP-value
Children’s age [months]a8 (6–11)6 (4.6–12)0.151
Children’s genderbFemale43 (57.3)47 (61.8)0.572
Male32 (42.7)29 (38.2)
Mothers’ agea29 (26–31)29 (26.5–32)0.525
Maternal educational levelbPrimary school9 (12)7 (9.2)0.464
High school23 (30.7)18 (23.7)
University43 (57.3)51 (67.1)
Monthly income, Turkish lirasb≤ 15008 (10.7)6 (7.9)0.694
1501–450040 (53.3)36 (47.4)
4501–1000022 (29.3)29 (38.2)
> 100005 (6.7)5 (6.6)
Number of children in familya1 (1–2)1 (1–2)0.184

a Median (inter quantile range)

b n (%).

Table 2

Association between maternal MOCI-T scores and infantile atopic dermatitis

ParameterHealthy group N = 76 (IQR)AD group N = 75 (IQR)P-value
Total12 (8–15)15 (10–20)0.007
Washing/cleaning5 (4–7)6 (4–8)0.203
Checking2 (1–3)2 (1–4)0.053
Slowness1 (1–2)2 (1–3)0.001
Doubting2 (1–3)3 (2–4)0.012
Rumination2 (0–3.8)3 (1–6)0.011

[i] AD – atopic dermatitis, IQR – inter quantile range, SN-AD – sensitization-negative atopic dermatitis, SP-AD – sensitization-positive atopic dermatitis.

The median SCORAD score was 21 (IQR: 12–30), 67.3% of the patients had mild, 30.9% had moderate, and 1.8% had severe AD. There was no statistically significant correlation found between SCORAD and MOCI-T/subscale scores (data not shown).

Discussion

In this study we found that OCS were more common in mothers of children with AD. To the best of our knowledge, this is the first study to demonstrate an association between maternal OCS and AD in their children. We did not find any correlation between AD severity and MOCI-T/subscales. Our study highlights the relationship between AD and psychological disorders in mothers of affected children.

Only one study has investigated the association between maternal OCS in AD children’s mother [16]. In that study, Gunduz et al. [16] showed that having a child with AD does not influence mothers in terms of OCS and health related quality of life. The authors explained that the reason for not finding a difference in OCS scores between AD and control groups might have been due to the study being conducted in a private hospital where doctors could pay more attention and spend more time with patients. The authors also stated that good doctor relationships in the private hospital may have reduced parental anxiety, which may have led to low MOCI scores [16]. In a letter to the editor published in the same issue, it was noted that the exclusion of mothers who had previously used any neuropsychiatric medication could also explain the negative result [17]. In addition, although the Turkish validated version MOCI contains 37 questions, the authors’ use of a 30-question questionnaire may have led to bias in the results. In our study, we did not exclude mothers who had taken any neuropsychiatric medication before, and we used the Turkish validated version of MOCI (MOCI-T) which contains 37 questions. For these reasons, we think that our results are more valid than the results of Gunduz et al.’s study.

The management of a child with AD is time-consuming. It has a high financial cost, it reduces parental work performance and attendance, and it disrupts the sleep quality of the child and the family [2, 16, 18]. Parents of children with AD can be particularly burdened by the emotional weight of seeing their children suffer. Social isolation can also be seen in parents of children with AD [18]. All these aggravating factors may impair the family’s quality of life and increase anxiety, depression and stress. Increased anxiety, depression and stress are related to an increase in OCS [10, 18, 19]; this may have contributed to the results of our study. Our results are concordant with previous studies which have shown the relationship between childhood AD and maternal stress, anxiety and depression [27, 20].

The most common compulsive symptom in OCD is excessive/ritualistic cleaning/washing behaviour [21]. Excessive cleaning/washing behaviour might lead to a decrease in the environmental microbiota, reduce children’s contact with environmental microbes, and excessive use of cleaning agents/detergents which may disturb epithelial barrier. A prominent hypothesis is the hygiene hypothesis, which proposes that certain microorganisms protect against allergic diseases and that their loss, due to hygiene measures, results in an increase in allergy [22]. The epithelial barrier hypothesis states that disruptions to the epithelial barrier may be associated with an increase in allergic diseases [23]. Washing/cleaning subscale score did not reach a statistically significant difference between groups but total MOCI-T score was higher in the AD group than in the healthy group. The fact that our washing/cleaning subscale was not statistically significant among the groups weakens our speculation, but it does not preclude it.

In our study, we questioned maternal OCS at the time of the study. We do not know the prenatal psychological status of mothers in our study. We speculate that the OCS score of the mothers in our study might have been higher in the prenatal period. Uguz et al. [24] investigated whether maternal OCD during pregnancy affects foetal circulating tumor necrosis factor-α (TNF-α) levels by comparing cord blood TNF-α levels in newborn infants of women with and without OCD. Cord blood TNF-α levels were significantly higher in those foetuses whose mothers have OCD compared to the foetuses of healthy mothers [24]. Tumor necrosis factor-a is a proinflammatory cytokine [24]. Tumor necrosis factor-a induces the production of thymic stromal lymphopoietin (TSLP) by keratinocytes. Thymic stromal lymphopoietin ultimately contributes to the induction of allergic inflammation by producing Th2 cytokines. Tumor necrosis factor-a also affects the lipid organization [25]. The increase in Th2 cytokine releases and disruption of lipid organization may lead to the development of atopic dermatitis.

The brain and skin are functionally and anatomically related, as named “brain-skin axis”. They arise from a common embryonic origin called ectoderm. The brain impacts the skin through different mechanisms. First of all, the mechanism is the hypothalamic-pituitary-adrenal (HPA) axis [26]. Prenatal maternal stress can activate the HPA axis, leading to increased release of glucocorticoids. Excessive glucocorticoid levels can result in persistent activation of HPA axis in the foetus. Prolonged excessive glucocorticoid exposure may drive the T helper (Th) 1/Th2 balance toward a Th2 type response, which may lead to allergic inflammation. In genetically susceptible children, that may lead to the development of AD in later life [27]. Secondly, it has been shown that stress can impair skin barrier function and homeostasis. Although the exact mechanism is still unclear, decrease in ceramide, pyrrolidone carboxylic acid and lipid synthesis in response to stress has been observed in several studies [28]. Transplacental transfer of stress mediators may disturb the development of foetal skin barrier function and homeostasis. Thus, it may contribute to the development of AD [28]. Furthermore, there has been an increasing interest in the effects of maternal stress on infant’s gut microbiota. The gut microbiota formation begins in utero. Altered microbiota have a significant impact on the maturation and shaping of the immune system. Maternal stress has shown impact on the composition of infant’s gut microbiota. This pathway could potentially change the immune system development and increase the risk of AD in children [29]. In this study, we did not evaluate the glucocorticoid levels, stress mediators or gut microbiota of the infants in the perinatal period. However, we think that the relationship we found between OCS and having a child with AD in our study is valuable in terms of laying a basis for new studies that will evaluate the role of the above-mentioned possible mechanisms in the brain-skin axis.

When considering our results and the well-known relationship between OCS and other psychiatric disorders we think that psychosocial support may be an important recommendation for mothers, especially those who have a child with AD or at risk of AD. Improved social support and the introduction of early intervention programs designed to improve the maternal infant relationship quality may reduce the risk of childhood AD [30]. Yoo et al. [31] showed that educational programs for mothers of children with AD proved effective in reducing their anxiety, improving their caregiving efficacy, and increasing the caregiving behaviours performed by the mothers. It was shown that education programs have long-term beneficial effects on eczema severity in childhood AD [32].

Our study has several limitations. First, the study was based on a questionnaire. The mothers did not have one-to-one psychiatric evaluations, and we cannot definitively claim the presence of OCD. The presence of anxiety and depression, which are other OCS-related conditions, was not questioned in our study. Another limitation is that the study population was not very large, and was selected from an urban area in Turkey. Our findings may not be generalizable or applicable to other populations. A strength of our study is that for the first time, we demonstrated the presence of maternal OCS in mothers of children with AD.

Conclusions

Mothers of children with AD showed higher OCS. The findings support recommendations for psychosocial support for mothers of children suffering from AD. Future studies with a larger patient group could examine the personalized psychiatric evaluation of mothers during pregnancy and postnatal period and the effects of psychological and social support on the risk of AD and other atopic disorders in offspring.

Conflict of interest

The authors declare no conflict of interest.

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