4.1. Interpretation of Results
This study is the first attempt to translate and examine the translated Traditional Chinese version of the PBQ in one of the Chinese societies, i.e., Hong Kong. In sum, the findings provide evidence supporting the strong psychometric characteristics of the PBQ-C for use in a Chinese population. The internal consistency and reliability of the PBQ-C were confirmed through high Cronbach's alpha coefficients and total-item correlations for both the overall scale and its subscales. This suggests that the items within each subscale measure a cohesive construct. While the average inter-item correlation of 0.42 may indicate a weaker relationship among items, this can be attributed to the multidimensionality of the PBQ, which includes distinct factors like grief, guilt, and anger. Lower correlations among items across different subscales are expected. The split-half reliability further supports the scale’s consistency, indicating that the PBQ produces consistent results across different item groupings.
Our findings also confirmed the concurrent validity of the PBQ-C. The significant positive correlations with the ICG and the depression subscale of the DASS-21 demonstrate that the PBQ captures relevant aspects of grief and depression in the context of pet loss. This aligns with the original PBQ study, which found that depressive symptoms may be present in individuals experiencing pet bereavement [
22]. Moreover, the significant association with the ICG supports previous research suggesting that levels of grief following a pet’s death can be comparable to those following the loss of a human [
38].
The factor analysis of the PBQ-C revealed three distinct factors across 16 items, closely aligning with the original PBQ structure. This consistency suggests that the core dimensions of pet bereavement are applicable across different cultural contexts. However, items 4, 14, and 15 were rearranged into different factors compared to the original structure. Items 4, 14, and 15 were reassigned based on cultural factors specific to the Chinese context.
In particular, item 4, originally categorized under the trauma dimension, was combined with the anger dimension in the original study after the final factor analysis. In this study, it was moved to the guilt dimension. This reassignment is justified by the nature of the item, as cognitive indicators like negative dreams are commonly associated with guilt during the grieving process [
39]. Item 14, which involves haunting memories of the pet’s last moments, was reclassified from anger to grief in this study. While such memories could evoke anger, they are also strongly associated with sorrow, loss, and emotional pain, which are central aspects of grief [
40]. In Chinese culture, the concept of 'Lian,' which refers to a deep sense of attachment and emotional continuity even after loss, reinforces this alignment of memories with grief over anger [
41]. The cultural emphasis on preserving emotional connections and respecting the significance of past relationships further supports the reassignment of this item. Future studies should explore how these cultural elements influence the expression and experience of grief in pet loss. Categorizing item 15 into “anger” dimension was consistent with cultural norm in Chinese Society, where expressing anger openly is often discouraged due to social expectations of emotional restraint [
42]. The internalization of anger, rather than its direct expression, could reflect unresolved grief, explaining the item’s significant loading onto the anger dimension. This cultural tendency suggests that further research is needed to understand how the suppression of anger influences pet bereavement experiences in Chinese society.
The inclusion of a "not applicable" option for item 1 was a key adaptation in this study. This modification has proven its relevance, with 16% of participants selecting this option. This option addresses the fact that direct interactions with veterinarians may not be common for certain pet owners, ensuring the questionnaire’s applicability across diverse pet ownership experiences. Future iterations of the PBQ in similar contexts should consider maintaining this option to ensure the tool’s accuracy in capturing the full range of bereavement experiences.
Demographic analysis revealed several associations with the PBQ scores. First, the results showed a weak negative correlation between age and guilt, indicating that older individuals reported less guilt. This is consistent with the original study, which also reported a weak negative correlation with guilt [
22]. As discussed by Erikson [
43], older adults often view death as a natural part of life, leading to a more neutral acceptance and reduced feelings of guilt. A study in China supports this, showing that older people tend to perceive death as a part of life, which may reduce their sense of responsibility for their pet’s death [
44].
No significant correlation was found between age and depressive symptoms, consistent with the original study’s findings. A recent meta-analysis reported that depression among older adults is primarily influenced by factors such as inadequate pension schemes, limited access to healthcare, and declining physical health [
45]. These socio-economic challenges may drive depressive symptoms in older adults, even as their grief symptoms decrease over time, suggesting that depression may be influenced more by external factors than by grief alone.
Consistent with the Portuguese PBQ study, our results demonstrated that participants with a greater number of pets had higher levels of anger and grief [
25]. The association may be due to the unrecognized grief by the society [
18,
21]. This lack of recognition makes it common for those around the grieving owners to encourage them to get a new animal soon after the death of their beloved pet [
18]. This theme of misrecognition also resonated in a Hong Kong-based study, where the grief process was found to prolonged due to unfulfilled societal expectations [
21]. When pet owners with multiple pets experience the loss of one, their level of grief may be undervalued, potentially resulting in inadequate social support and validation. This may lead to an increased intensity of grief symptoms.
In terms of types of pets, our findings indicate that owners of dogs or cats tend to report greater PBQ scores and experience more profound grief than those with other types of pets, suggesting that losing a dog or cat may have a more substantial emotional effect than losing other kinds of pets. It aligned with previous findings that cat and dog owners were disproportionately in the high grief group compared to other types of pets [
46]. These findings are likely due to the a high frequency of interaction and stronger mutual emotional connections typically observed with dogs and cats [
47,
48].
The analysis also revealed significant differences in PBQ-C scores based on the cause of death, with the highest distress levels associated with poisoning or attacks. This finding aligns with research on ambiguous or unexpected loss, which often intensifies the grieving process due to a lack of closure [
49]. In contrast, deaths due to old age typically involve more preparation and acceptance, resulting in lower distress levels. In addition, anger scores were notably higher in instances of medical negligence or complications after treatment. This could stem from directed anger towards medical professionals or feelings of personal responsibility, as pet owners may struggle with self-blame or question their decisions leading up to the medical outcome [
50]. Future studies should investigate these distinct emotional responses to better understand how different causes of death influence pet bereavement.
It is interesting and noteworthy that participants who had not experienced euthanasia reported higher levels of depression, consistent with previous findings suggesting that euthanasia may provide a sense of closure and control, potentially leading to a more resolved grieving process [
18,
51]. The act of choosing euthanasia may be perceived as a final act of care with a potential more proper way of saying goodbye, and hence may be reducing depression levels despite the loss. However, our study did not find significant differences in PBQ scores based on euthanasia experience, contrasting with findings from the Turkish PBQ study, which reported higher guilt among those who avoided euthanasia [
24]. This may be due to the difference context in which euthanasia occurs. Sudden or unexpected euthanasia can lead to heightened feelings of anger and guilt; whereas anticipated euthanasia, such as in cases of terminal illness, may allow for mental preparation and acceptance [
52,
53]. Variations in veterinary support may also play a role. Evidence suggested that the emotional support and communication provided by veterinarians can moderate grief levels during the euthanasia process, especially when reassurance is provided to help ease feelings of guilt [
54]. Further studies in Chinese and broader Asian contexts are needed to explore how cultural differences and varying levels of veterinary support impact the grieving process across different regions.
Finally, while the original study found significant associations between time since pet death and marital status with bereavement, our study did not replicate these findings, consistent with results from the Turkish and Portuguese PBQ studies [
24,
25]. Variability in grief responses may be due to differences in attachment styles, personality traits, and coping mechanisms [
19,
55], highlighting the complex and individualized nature of the grieving process.
4.3. Implications
Despite the limitations, this study has made substantial progress in adapting and validating the PBQ-C for the Chinese context, offering a validated tool for assessing the grief associated with pet loss. It provides a culturally sensitive measure for studying pet loss in Chinese populations, contributing to cross-cultural comparisons of grief processes and extending existing literature on pet bereavement. While only one qualitative study has explored pet loss and post-bereavement growth within a Chinese context [
21], the PBQ-C provides a standardized measure to build on this foundation and facilitate follow-up research. This measure also enables further exploration of key areas such as cross-cultural comparisons in grief process, risk factors and effective coping strategies in Chinese societies. Employing the PBQ-C as a standardized tool in future empirical research will enhance our understanding of these phenomena and lay the groundwork for developing culturally informed clinical interventions.
Currently, pet bereavement support services in Chinese societies remain very limited. Existing services primarily include emotional support hotlines and peer support groups, but standardized interventions or those supported by empirical evidence are lacking. The PBQ-C provides a valuable tool that can be used to develop and evaluate targeted interventions, paving the way for evidence-based approaches to support individuals experiencing pet loss.
This tool can also be integrated into veterinary practices as a screening measure to identify individuals at risk of immediate and prolonged severe grief after the loss of a pet. By incorporating the PBQ-C into routine veterinary care, veterinary professionals can better assess the emotional state of pet owners and offer referrals for further psychological support to promote a more holistic care to both the animals and their owners. Additionally, the development of guidelines and recommendations can aid veterinary professionals in recognizing signs of intense grief and offering appropriate support. This approach fosters collaboration between the veterinary and psychological communities, creating a bridge that ensures pet owners receive comprehensive care, from the emotional support provided during veterinary consultations to specialized counseling services when necessary and may add on to the sense achievement for veterinary professionals to combat with their often stressful and psychologically challenging career [
9] .
Last but not least, the PBQ-C can be used as a self-screening tool and serve as a resource for public education on grief related to companion animal loss. Given the prevalence of disenfranchised grief in Chinese societies, incorporating pet loss into life and death education can help normalize the experience and provide preventive measures. By utilizing the PBQ-C as part of these educational efforts, individuals can better understand their emotional responses and assess whether they might benefit from professional support. This tool can empower individuals to recognize the signs of unresolved grief and take proactive steps to seek help when needed, reducing the stigma and isolation often associated with grieving a pet.