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The effect of nursing care and follow-up for mothers of infants undergoing congenital heart surgery: a quasi-experimental study

Published online by Cambridge University Press:  20 September 2022

Ayşe Ay*
Affiliation:
Nursing Department, Faculty of Health Sciences, Başkent University, Ankara, Turkey
Gülten Koç
Affiliation:
Obstetrics and Gynecologic Nursing Department, Faculty of Nursing, Hacettepe University, Ankara, Turkey
*
Author for correspondence: Ayşe Ay, RN, PhD, Assistant Professor, Nursing Department, Faculty of Health Sciences, Başkent University, Ankara, Turkey. Tel: +905073560214; Fax: +90312 2466676. E-mail: [email protected]
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Abstract

Improvements in congenital heart surgery have resulted in an increasing number of infants surviving, but there remain concerns about home care and difficulties experienced by mothers. This study was designed to evaluate the effect of nursing care and follow-up for the mothers of infants undergoing congenital heart surgery on anxiety, care burden, and self-efficacy. The study was designed as a quasi-experimental study with a pre-test and post-test control group design. The study included 40 mothers whose infants had undergone congenital heart surgery. Nursing care was provided to the mothers of the infants included in the study group through a total of six home follow-ups until the third month after surgery, guided by the North American Nursing Diagnosis Association and Nursing Diagnosis System and Nursing Interventions Classification. Data were collected through Care Needs Identification Form, Spielberger’s State-Trait Anxiety Inventory, Zarit Burden Interview, and Parental Self-efficacy Scale. The mean State-Trait Anxiety Inventory and Zarit Burden Interview scores for the mothers in the intervention group decreased, while the mean Parental Self-efficacy Scale scores increased as the follow-up progressed and it was determined that by the third month, the difference between the mothers in the intervention group and those in the control group in terms of post-test State-Trait Anxiety Inventory, Zarit Burden Interview, and Parental Self-efficacy Scale had become statistically significant. Providing appropriate nursing care practices to the mothers of the infants had undergone congenital heart surgery in home setting has the potential to decrease the problems experienced by the mothers.

Type
Original Article
Copyright
© The Author(s), 2022. Published by Cambridge University Press

Congenital heart disease (CHD) is one of the most common congenital anomalies in the world. Reference Hockenberry, Wilson and Rodgers1 According to American Heart Association, the incidence of CHD is approximately 2.4–13.7 per 1000 live births. Reference Virani, Alonso and Benjamin2 In Turkey, the number of infants with CHD born annually is in the range of 12.000–13.000. 3 Significant achievements in the surgical treatment of CHD have resulted in reduced mortality and morbidity. Reference Virani, Alonso and Benjamin2 These advances have led to a shift in the healthcare system focus towards consideration of post-operative care of infant at home. Reference March4 The transition from hospital to home and specifically mothers’ experiences of going home for the first time with a fragile infant may cause a stressful situation. The concerns of mothers regarding the transition to home may include a fear of not having sufficient knowledge and skills to provide care to the infant alone, and who to contact when they need counseling. Reference Gaskin5 It was reported that mothers of children undergone congenital heart surgery experienced anxiety at discharge and required ongoing home care support. Reference Fischer, Butz, Nicholson, Blankenship, Dyke and Cua6

Parenting a fragile infant that undergone congenital heart surgery at home may cause greatest responsibility for infant care in mothers, and they may experience caring difficulties. Reference March4 Fulfilling the responsibilities of infant care often requires a significant amount of work throughout the day and night, resulting in the care burden. Reference Bektas, Kır, Yıldız, Genç, Bektas and Ünal7,Reference Wray, Brown, Tregay, Crowe, Knowles and Bull8 It is known that mothers of children with CHD experience more care burden than mothers of healthy children. Reference Sabzevari and Nematollahi9 The care burden in mothers is especially high during the discharge period after congenital heart surgery because of the infant’s home care needs. Reference Ni, Lv, Ding and Yao10

The mothers of the infants undergone congenital heart surgery may also feel a lack of competence in adjusting to their parental roles as well as in providing care to their infants. Reference March4 Studies evaluating the parental competence of mothers after surgery have reported that the mothers feel less confident and incompetent in infant care. Reference Edraki, Kamali, Beheshtipour, Amoozgar, Zare and Montaseri11,Reference Uhm and Kim12 In order to feel self efficient, the mothers need knowledge and skills about the effective ways of taking care of their infant. Reference Edraki, Kamali, Beheshtipour, Amoozgar, Zare and Montaseri11 With the development of parenting self-efficacy, transfering of all knowledge and skills to the care of infants and enhancing positive ways of parenting can be achieved.

Healthcare professionals need to provide mothers with treatment information and care management on infant’s home care, share experiences and feelings. Reference Gaskin5,Reference Cruz, Aranha, Silva and Pedreira13 There are studies drawing attention to the importance of nursing interventions for the mothers of infants had congenital heart surgery. Reference Wu, Li and Chen14Reference Cooper, Marino and Fleck17 These studies were evaluated the effects of nursing interventions made with education on the mothers’ knowledge about home care, Reference Wu, Li and Chen14 self-efficacy, Reference Ni, Chao and Xue15 parenting stress, posttraumatic stress disorder, and quality of life. Reference Fleck, Marino and Costello16,Reference Cooper, Marino and Fleck17 Nursing follow-up was limited to telephone and video conference calls in these studies. A systematic review by March Reference March4 emphasised that nursing interventions make with home visits are needed to optimally manage the transition from hospital to home after the congenital heart surgery, as well as the process of adaptation to the care. In Turkey, the mothers have limited access to healthcare services other than the routine outpatient clinic follow-ups which are provided after the congenital heart surgery. However; it is important to maintain the follow-ups not just through hospital controls, rather at home as well, in order to develop a care plan in accordance with the specific requirements of the infant, and to provide effective support for care management. Supporting the mothers in infant’s care through the provision of sufficient care would contribute the mothers in maintaining the psychosocial health. The purpose of the study was to determine the effect of nursing follow-up for the mothers of infants undergoing congenital heart surgery on their anxiety, care burden, and self-efficacy.

Materials and method

Sample and setting

This study was designed as a quasi-experimental design with pre-tests and post-tests applied to both intervention and control groups. The study was conducted in three pediatric cardiovascular surgery clinics in Ankara between October 2019 and May 2020. The clinics provided diagnostic and treatment services to infants with CHD and their families. These clinics selected by considering that they have similar care protocols and nursing practices for congenital heart surgery. However, they do not have a written guide for the care of the infants undergoing surgery and nursing follow-up services after discharge.

The inclusion criteria for the mothers were (a) living in the city where the study was conducted and (b) willingness to participate in the study. The inclusion criteria for the infants were (a) birth after at least 37 weeks of gestation, (b) absence of any anomaly other than CHD, (c) absence of CHD associated with high mortality, such as hypoplastic left heart syndrome, transposition of large arteries, tetralogy of Fallot, and coarctation of the aorta, and (d) undergoing congenital heart surgery for the first time. The exclusion criteria both for mothers and infants were having physical or mental problems.

The present study included two groups: the intervention and the control group. The sample size for the study was calculated after seeking the opinion of a statistician and was determined to be 20 mothers in each of two groups (Fig. 1). Analysis of the statistical power conducted using the program PASS Version 11.0 revealed a power of 94% based on the mean SAI, 85% based on the mean TAI, 87% based on the mean Zarit Burden Interview, and 88% based on the mean Parental Self-efficacy Scale at α = 0.05.

Figure 1. Consort diagram.

Infants meeting the inclusion criteria were grouped according to age (months) and the diagnosis of CHD. The first mother and infant duo meeting the inclusion criteria were included in the intervention group by the drawing of lots method, while the second mother and infant duo with matching criteria (age (months) and diagnosis of CHD) was assigned to the control group. The assignment process was repeated for the rest of the mother and infant duos. The groups were homogeneous according to the age (months) and diagnosis of CHD (χ 2 = 0.000, p = 1.000) (Table 1).

Table 1. Descriptive characteristics of groups

*Fisher’s Exact Test. ** Pearson Chi-Square.

Data collection form

Care needs identification of the mothers of infants with CHD form

It was prepared after reviewing the literature for the relevant variables. Reference Ni, Lv, Ding and Yao10,Reference Hartman and Medoff-Cooper18,Reference Pye and Green19 The section on the characteristics of the mother and infant was included in the first part of the form, which contained questions about the infant’s age, gender, diagnosis, mother’s age, educational level, employment status, income status, and the number of children in the family. The second part of the form included questions prepared according to Gordon’s Functional Health Patterns Model, which comprised 11 categories of health to determine the care needs of mothers in nursing follow-up.

After the development of the form, content validity was controlled by sending the form to five Paediatric Nursing Specialists. The identification form was finalised based on the opinions obtained from the experts.

Spielberger’s state-trait anxiety inventory

The state anxiety inventory describes how the individual feels at a certain time and under certain conditions. The trait anxiety inventory describes how the individual generally feels. It is a four-point Likert-type scale having 20 items in each section. The scores obtained from both scales vary between 20 and 80. Based on the scale, 20–39 points indicate “mild anxiety”, 40–59 points suggest “moderate anxiety”, 60–79 points indicate “severe anxiety”, and 80 points suggest “panic”. Reference Öztürk and Uluşahin20 In the present study, Cronbach’s alpha values were determined as 0.94 for state anxiety inventory and 0.90 for trait anxiety inventory.

Zarit burden inventory

It is a five-point Likert-type scale consisting of 22 items determining the effect of caregiving on an individual’s life. This inventory is evaluated based on the total score, and the minimum and maximum scores of the inventory are 0 and 88 points, respectively. A high scale score indicates that high distress is experienced. The validity and reliability of this inventory in the Turkish context were determined by İnci & Erdem. Reference İnci and Erdem21 Cronbach’s alpha for the present sample was 0.96.

Parental self-efficacy scale

It was developed by Kılıçaslan in 2007 to determine the personal judgement of new parents with 3–6-month-old infants about their competencies in a parental role. It consists of 18 items and is a five-point Likert-type scale. The scores obtained from the scale range between 18 and 90. A higher score obtained from the scale indicates a higher perception of self-efficacy. Reference Kılıçaslan22 Cronbach’s alpha for the present sample was 0.93.

Nursing care plan for mothers of infants with CHD

Based on the results of the preliminary application of the care needs identification form and the relevant literature Reference Uhm and Kim12,Reference Ni, Chao and Xue15,Reference Hartman and Medoff-Cooper18 , five nursing diagnoses were established for mothers in the nursing care plan. The nursing diagnoses and nursing interventions were developed according to the guidelines of the North American Nursing Diagnosis Association (NANDA) and the Nursing Interventions Classification (NIC). 23 The content was validated using Davis’ technique, and the validity levels of the items were calculated between 0.81 and 1.00. The content validity index was observed to be acceptable for all the items. Reference Davis24

Training booklet

Based on the results of the preliminary application of the care needs identification form, the topics concerning the care of the infant were established, such as whether the mothers had insufficient information and wanted to learn. According to the relevant literature Reference Ni, Lv, Ding and Yao10,Reference Hartman and Medoff-Cooper18,Reference Pye and Green19 and the findings of the preliminary application, a training booklet was prepared, which included basic information related to CHD as well as information regarding the care of infants after surgery (nutrition, bath, sleep, surgical area care, activity, pain management, administration of medication, chest physiotherapy, and infection control), coping with stress, and maintaining the mother-infant communication.

Following the development of the nursing care plan and training booklet, content validity was controlled by sending it to four Paediatric Nursing Specialists and one clinic nurse. The nursing care plan and training booklet was finalised according to the opinions obtained from the experts.

Intervention

The first researcher visited the clinics daily. Following the identification of an eligible participant, the researcher explained the study to the infant’s mother. For both intervention and control group, the Care Needs Identification Form, Spielberger’s State-Trait Anxiety Inventory, Zarit Burden Interview, and Parental Self-efficacy Scale were administered through a face-to-face interview on the day when the infants were shifted from the ICU to the clinic.

An individual care plan was prepared for each mothers in the intervention group in accordance with the care needs determined through the needs identification form. The nursing diagnosis and nursing interventions specific for the mothers were selected from the nursing care plan. The priority order, nursing interventions, and aetiology of the five nursing diagnoses are structured specifically for each mother. Nursing interventions were identified according to the NIC based on the obtained nursing diagnoses. After this stage, home follow-ups were performed in line with the following steps at each visit. Six home follow-ups were performed until the third month after surgery. The first home follow-up was performed on the first day after discharge. The second home follow-up was performed three days after the first home follow-up, the third home follow-up was performed one week after the second home follow-up, the fourth home follow-up was performed in the first month after surgery, the fifth home follow-up was performed in the second month after surgery, and the sixth home follow-up was performed in the third month after surgery. Each home follow-ups lasted approximately 60–90 min. The mothers received training for care requirements through the training booklet and nursing care was provided during the home follow-ups. Each home follow-up, problems experienced by the mother in care requirements were re-evaluated. If a priority need was detected during the home follow-up, it was addressed immediately. Nursing care activities (preparation and administration of medication, bathing of the infant, care of the surgical area, etc.) were performed with the mothers to improve care skills. Also, the difficulties, experiences, and feelings of the mothers regarding care practices were discussed during home follow-ups. For the control group, no other care was provided outside of what was offered at the hospital.

In the intervention group, Spielberger’s State-Trait Anxiety Inventory, Zarit Burden Interview, and Parental Self-efficacy Scale were administered once again during the sixth home follow-up. In the control group, Spielberger’s State-Trait Anxiety Inventory, Zarit Burden Interview, and Parental Self-efficacy Scale were administered once again in the routine controls of the hospital during the third month after surgery.

Data analysis

The data were analysed using the program IBM Statistical Package for Social Sciences for Windows version 21.0. The Kolmogorov–Smirnov test was used to assess whether continuous variables were normally distributed. It was assumed that the data were normally distributed. For the analysis of the descriptive data, numbers and percentages were used as the discrete data, whereas the continuous data were presented as mean ±standard deviation. The student’s t-test was employed to determine the difference between the independent groups, Pearson’s chi-squared test and Fisher’s exact test were employed to determine the relationship between two independent categorical variables, and Cochrane’s Q-test was used to determine the relationship among more than two dependent categorical variables.

Results

Table 1 presents the demographic data for mothers and infants. No significant demographic differences were observed between the groups.

During the first home follow-up, it was determined that all of mothers in the intervention group (100.0%) had deficient knowledge, difficulty in the caregiver role, and ineffective management of health/treatment. Furthermore, 85.0% of the mothers were at risk of ineffective coping, while 75.0% were at risk of deterioration in attachment. A significant reduction in time was established for dealing with all the problems as a result of the provision of nursing care and follow-up (p < 0.05) (Table 2).

Table 2. Distribution of nursing diagnoses determined in mothers in the intervention group (n = 20)

* Cochran’s Q test (p < 0.05).

The mean pre-test State Anxiety Inventory scores for the mothers were similar in both intervention (58.70 ± 7.664) and control (59.05 ± 4.084) groups (t = −0.180, p = 0.858). The mean post-test State Anxiety Inventory scores of the mothers in the intervention group were observed to decrease to 37.90 ± 3.370 after the nursing care and follow-up (t = 13.513, p < 0.0001), whereas that of the mothers in the control group was 57.60 ± 4.031 (t = 1.828, p = 0.083) at the third month after surgery. The mean post-test State Anxiety Inventory scores of the intervention group and the control group were statistically different (t = −20.171, p < 0.0001) (Table 3).

Table 3. Mean scores for anxiety, care burden and parental self-efficacy in the intervention and control groups

* Independent sample T-test.

The mean pre-test Trait Anxiety Inventory scores for the mothers were similar in both intervention (52.60 ± 5.852) and control (53.05 ± 8.178) groups (t = −0.200, p = 0.843). The mean post-test Trait Anxiety Inventoryscore of the mothers was observed to decrease to 34.35 ± 4.556 after the nursing care and follow-up in the intervention group (t = 27.211, p < 0.0001), whereas that of the mothers in the control group was 54.30 ± 5.181 (t = −0.586, p = 0.565) at the third month after surgery. The mean post-test Trait Anxiety Inventory scores of the intervention group were statistically different from those of the control group (t = −14.873, p < 0.0001) (Table 3).

The mean pre-test Zarit Burden Interview scores for the mothers were similar in both intervention (50.80 ± 5.899) and control (50.30 ± 10.716) groups (t = 0.183, p = 0.856). The mean post-test Zarit Burden Interview score of the mothers in the intervention group decreased to 30.80 ± 4.969 after the nursing care and follow-up (t = 12.996, p < 0.0001), whereas that of the mothers in the control group was 51.05 ± 13.072 (t = −0.640, p = 0.530) at the third month after surgery. The mean post-test Zarit Burden Interview scores of the intervention group and control group were statistically significantly different (t = −6.475, p < 0.0001) (Table 3).

The mean pre-test Parental Self-efficacy Scale scores for the mothers were similar in both intervention 60.60 ± 7.856 and control 61.20 ± 6.985 groups (t = −0.255, p = 0.800). The mean post-test Parental Self-efficacy Scale score of the mothers was observed to increase to 75.15 ± 3.910 after the nursing care and follow-up in the intervention group (t = −6.016, p < 0.0001), whereas that of the mothers in the control group was 59.35 ± 5.518 (t = 1.420, p = 0.172) at the third month after surgery. The mean post-test Parental Self-efficacy Scale scores of the intervention group and the control group were statistically significantly different (t = 10.448, p < 0.0001) (Table 3).

Discussion

The results of this study have revealed that mothers of the infants undergone congenital heart surgery exhibited decreased level of maternal anxiety and care burden, increased level of parental self-efficacy after the nursing care, and follow-up at home addressing the care needs of the mothers. In order to avoid psychosocial problems in mothers and enhance the positive development of the care of infants undergone surgery, mothers should be followed-up closely after surgery. Reference McMahon and Chang25

Nursing diagnoses

In the first home follow-up, the most nursing diagnosis noted among the mothers in the intervention group was deficient knowledge, difficulty in a caregiver role, and ineffective health/treatment management. The literature includes studies reporting the maternal problems such as the lack of knowledge regarding home care after surgery, Reference Poudel and Malla26 ineffective coping and difficulties in providing care to the infants, and attritubes these problems to the need for support during home care. Reference Ni, Lv, Ding and Yao10,Reference Hartman and Medoff-Cooper18 It was identified that insufficient knowledge and skills as the leading factors contributing to postdischarge stress in mothers. Reference Wray, Brown, Tregay, Crowe, Knowles and Bull8 A study conducted with mothers of the infants born with a cleft lip and palate congenital anomalies informed that providing home-based nursing care reduced the nursing diagnosis were established for the mothers, was in parallel the results of the present study. Reference Çınar and Koc27 Constant evaluation of the level of information, health training, and counseling for infant care during home follow-ups are the nursing interventions that help to eliminate the lack of knowledge. The prevalence of difficulty in the caregiver role and ineffective health/treatment management reduced to 10%, and 5% after the provision of nursing care during home follow-ups to the mothers in the intervention group for consulting, training regarding treatment, medication management, supporting the caregiver and helping the self-care of infants. This result suggested that the nursing care which was provided during home follow-ups to the mothers in accordance with their care needs was effective in reducing the difficulties in the caregiver role, as well as the management of the infant’s health/treatment at home.

Maternal anxiety

Previous studies have reported that mothers of children who had congenital heart surgery experience “moderate” to “severe” anxiety. Reference Fischer, Butz, Nicholson, Blankenship, Dyke and Cua6,Reference Wray, Brown, Tregay, Crowe, Knowles and Bull8,Reference Re, Dean, Mullaert, Guedeney and Menahem28 In a study conducted to determine the factors resulting in anxiety among mothers after congenital heart surgery, it was stated that insufficient knowledge regarding infant care after surgery was a factor that increased anxiety. Reference Rahimianfar, Forouzannia, Sarebanhassanabadi, Dehghani, Namayandeh and Khavary29 Therefore, the factors causing anxiety should be identified, Reference Fischer, Butz, Nicholson, Blankenship, Dyke and Cua6 and interventions should be planned for adaptation to home care. Reference March4 In this study, mothers’ anxiety scores within the study group during the baseline were similar to those in past studies; however, the mean anxiety scores of the mothers in the intervention group decreased from “moderate” level to “mild” level after home follow-ups, when compared to the control group, were highlighting a potential area of effectiveness with the intervention. Determination of the cognitive, emotional, and social needs of mothers, supporting the participation in providing care, and provision of the information regarding the effective coping methods during home follow-ups, are the nursing interventions that decrease the anxiety of mothers. Nursing support received might enable mothers to cope with stress and anxiety more easily. Therefore, it may be inferred that the remain of high level of anxiety in the mothers is inevitable if the mothers of the infants undergone congenital heart surgery are not sufficiently supported.

Mother’s care burden

Care burden of the mothers may increase due to the special care needs of the infant undergone congenital heart surgery, Reference Ni, Lv, Ding and Yao10,Reference Strange, Stewart, Farthing, Kasparian, Selbie and O’Donnell30 the lack of information, and not being ready to provide care to the infant at home. Reference Ni, Lv, Ding and Yao10 Sabzevari & Nematollahi Reference Sabzevari and Nematollahi9 reported that the care burden of the mothers was closely related to the difficulties experienced by them while caregiving, and it was important to provide training and psychosocial support by the nurses for the development of care skills. Perceived care burden can be alleviated by supporting mothers during infant care and increasing their coping skills with nursing care. Reference Lumsden, Smith and Wittkowski31 In this study, sharing experiences regarding the care difficulties, performing the infant care needs such as nutrition, bathing, preparation, and administration of medication, counseling, improving the participation in care during home follow-ups are the nursing interventions that decrease the care burden of mothers. The nursing care provided to the mothers of the infants with congenital heart surgery positively affected care burden, this problem was observed to continue when there was no intervention.

Mother’s parental self-efficacy

Mothers may experience a feeling of inadequacy in parenting while trying to meet many complex care needs of their infants during the post-operative period. It has been reported that the mothers of infant undergone congenital heart surgery feel incompetent, particularly in feeding, pain management, insicion care, and infection control. Reference Ni, Lv, Ding and Yao10,Reference Uhm and Kim12 The previous studies have reported that the training regarding the care of infants and children having congenital heart surgery increased the self-efficacy of the mothers. Reference Edraki, Kamali, Beheshtipour, Amoozgar, Zare and Montaseri11,Reference Ni, Chao and Xue15 The common theme of these studies is that the educational intervention was used to increase the self-efficacy of mothers in care. However, besides the education, we believed that nursing follow-up in the home environment is important in developing self-confidence and care skills, which are among the most important components of parental self-efficacy and effective maintenance of infant care after surgery. Çınar and Koç Reference Çınar and Koc27 stated that self-efficacy scores for the mothers of infants with a cleft lip and palate congenital anomalies have significantly increased after the nursing care which was provided during the home visits. Fulfilling the caring requirements of mothers would improve parental self-efficacy. In this study, apart from education, performing infant care practices with mothers in the intervention group, as well as nursing interventions such as counseling and improving participation in care, was effective in increasing the self-efficacy of mothers.

Limitations

The present study had certain limitations. First, it is not clear whether the mothers in the control group received information on infant care from their social sources, other than from the standard care provided by the hospitals. Second, the results of this study cannot be generalised since the care needs of mothers may differ from person to person, although the power of this study was good.

Conclusion

Many developing countries lack programmes for monitoring of the infants undergone congenital heart surgery and their mothers. The results of this study demonstrated that nursing care and follow-up in the home environment addresses the care needs of the mothers after congenital heart surgery, resulting in a decrease of anxiety, care burden, and the problems experienced by mothers, along with an increase in self-efficacy. Therefore, the results of this study may be considered important in terms of providing evidence-based information, supporting the inclusion of such services in national healthcare programs.

Acknowledgements

The authors thank the mothers and infants who participated in the study.

Financial support

This research received no specific grant from any funding agency, commercial, or not-for-profit sectors.

Conflict of interest

None.

Ethical standards

This study was approved by Hacettepe University’s Non-Invasive Clinical Trials Ethics Committee (Number:16969557–568). The present study complied with the ethical rules for human experimentation stated in the Declaration of Helsinki. Moreover, written permissions were obtained from the hospitals to conduct the study. Informed consent was obtained from the participating mothers in writing. All mothers in the intervention group received six home follow-ups from the first author who had experiences in a paediatry care unit.

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Figure 0

Figure 1. Consort diagram.

Figure 1

Table 1. Descriptive characteristics of groups

Figure 2

Table 2. Distribution of nursing diagnoses determined in mothers in the intervention group (n = 20)

Figure 3

Table 3. Mean scores for anxiety, care burden and parental self-efficacy in the intervention and control groups