Medical History and the Risk of Multiple Myeloma
Author Information
Author(s): A. Gramenzil, I. Buttinol, B. D'Avanzol, E. Negri, S. Franceschi, C. La Vecchia
Primary Institution: Istituto di Ricerche Farmacologiche 'Mario Negri'
Hypothesis
What is the relationship between various diseases and immunizations and the risk of multiple myeloma?
Conclusion
The study found moderate associations between multiple myeloma risk and certain medical conditions, particularly chronic bacterial diseases.
Supporting Evidence
- Scarlet fever was associated with a relative risk of 2.0.
- Chronic bacterial diseases showed a significant positive association with a relative risk of 1.8.
- Allergic conditions had a negative association with a relative risk of 0.6.
Takeaway
This study looked at how different diseases and vaccines might affect the risk of getting multiple myeloma, a type of blood cancer. It found that some infections, like tuberculosis, might increase the risk.
Methodology
A hospital-based case-control study was conducted with 117 patients with multiple myeloma and 477 controls, using structured interviews to gather medical history.
Potential Biases
Information bias may exist as cases might recall their medical history more carefully than controls.
Limitations
The study was not population-based, relied on interviews without validation, and had a small number of cases.
Participant Demographics
117 cases (60 males, 57 females) aged 38-79; 477 controls (337 males, 140 females) aged 27-79.
Statistical Information
P-Value
0.03
Confidence Interval
95% CI = 1.1-3.9 for scarlet fever; 95% CI = 1.1-2.8 for chronic bacterial diseases.
Statistical Significance
p=0.03
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