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Bone metastasis and anxiety significantly increase the risk of pain crises in cancer patientsFactors that predict pain crises in cancer patients

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Key Takeaway
Note that bone metastasis and psychological distress are significant predictors of pain crisis in cancer patients.

This meta-analysis evaluated the incidence and influencing factors of pain crises in a population of 1865 cancer patients. The study found a pooled incidence of pain crisis of 37%.

Several factors were identified as significant predictors of pain crisis. Bone metastasis (effect size 3.91) and the use of radiotherapy and chemotherapy (effect size 3.23) were associated with increased risk. Conversely, social support (effect size 0.88) and age (effect size 0.92) were associated with decreased risk. Psychological factors showed significant associations: mild, moderate, and severe anxiety (effect sizes 8.00, 9.15, and 10.99 respectively) and mild and moderate depression (effect sizes 6.54 and 6.46) were all associated with increased risk.

The findings suggest that clinical oncology nursing should incorporate routine psychological assessments and tailored pain management. While the study identifies several predictors, it does not provide a specific clinical protocol for intervention. The results are observational, and causality between these factors and pain crises was not established.

How this fits prior evidence

This meta-analysis addresses a gap in identifying specific predictors of pain crises in cancer patients. While previous coverage has explored the mechanisms of tumor metastasis and the role of the pre-metastatic niche, this study focuses on the clinical manifestations of pain associated with those conditions. It identifies bone metastasis and psychological distress as significant predictors for pain crisis, providing a basis for integrating psychological assessment into oncology nursing practice.

Managing pain is a constant challenge for people living with cancer. A new look at data from 1,865 patients helps identify what might lead to a sudden, intense pain crisis. These moments of severe pain can be distressing and impact a patient's quality of life.

The findings show that a pain crisis occurs in about 37% of cases. Several factors were linked to a higher risk of these episodes. These include having bone metastasis (cancer that has spread to the bone) and undergoing both radiotherapy and chemotherapy.

Mental health also plays a major role. Patients with mild, moderate, or severe anxiety, as well as those with mild or moderate depression, showed higher risks. On the other hand, having strong social support and being older were linked to a lower risk. These findings suggest that checking in on a patient's mental health and social circle is just as important as managing their physical symptoms.

What this means for you:
Bone metastasis, certain treatments, and mental health issues like anxiety are key predictors of pain crises in cancer.

Common questions

What factors increase the risk of a pain crisis?

Several factors are linked to a higher risk of pain crises. These include having bone metastasis, undergoing both radiotherapy and chemotherapy, and experiencing levels of anxiety or depression. The data shows that even mild anxiety or mild depression can be significant predictors of these painful events.

Do mental health and social support affect pain?

Yes, mental health and social support are important. The study found that anxiety and depression increase the risk of a pain crisis. Conversely, having strong social support and being older were linked to a lower risk of experiencing a pain crisis.

How common are pain crises in cancer patients?

The data shows that the pooled incidence of a pain crisis is 37% among the patients studied. These findings help doctors understand which patients might need more focused support to manage their pain more effectively.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedNov 2026
View Original Abstract ↓
AIMS: To systematically evaluate the incidence and influencing factors of pain crisis in cancer patients, providing evidence for targeted preventive interventions and optimized clinical nursing strategies. DESIGN: A systematic review and meta-analysis following PRISMA guidelines. DATA SOURCES: PubMed, Cochrane Library, Web of Science, CINAHL, Embase, SinoMed, CNKI, Wanfang, and VIP were searched from inception to February 2026. REVIEW METHODS: Literature screening, quality assessment, and data extraction were performed independently by two researchers. Meta-analysis was conducted using RevMan 5.4. Heterogeneity was assessed using the I statistic, and effect sizes were expressed as odds ratios (ORs) with 95% confidence intervals (CIs). RESULTS: Seven studies involving 1865 cancer patients were included. The pooled incidence of pain crisis was 37%. Significant influencing factors included bone metastasis (OR = 3.91), radiotherapy and chemotherapy (OR = 3.23), social support (OR = 0.88), and age (OR = 0.92). Anxiety (mild OR = 8.00, moderate OR = 9.15, severe OR = 10.99) and depression (mild OR = 6.54, moderate OR = 6.46) were also significant predictors. CONCLUSIONS: The incidence of pain crisis in cancer patients is relatively high and is influenced by bone metastasis, chemoradiotherapy, social support, age, and emotional states. Nurses should dynamically assess risk, identify factors, and implement individualized interventions to prevent pain crisis and improve quality of life. IMPACT: This meta-analysis provides robust evidence for identifying high-risk cancer patients for pain crisis. The findings underscore the need for integrating routine psychological assessment and tailored pain management strategies into clinical oncology nursing practice to reduce the occurrence of pain crises and enhance patient well-being. PATIENT OR PUBLIC CONTRIBUTION: Not applicable.
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