California Teachers Study

• By pooling data from 20 different cohort studies, researchers found that study participants who had a BMI > 25 during their early adulthood and a BMI > 30 when they joined their respective studies had a higher risk of developing multiple myeloma compared with participants who had a BMI between 18.5 and 25 at those same points in time. This study also found that participants who remained heavy throughout their adulthood had the highest risk of death from this cancer.  Read more here.

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• Researchers combined data from the CTS and the Los Angeles County Multiple Myeloma Case-Control Study to examine risk factors for multiple myeloma. Higher gravidity (number of times a woman has been pregnant) and parity (number of live births) were associated with increased multiple myeloma risk, whereas obesity and smoking were not associated with risk of multiple myeloma risk for these study participants.  Read more here.