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A second meta-analysis found a similar increase in bladder cancer risk for male and female smokers, but a higher risk in European compared with Asian populations
In addition, gender was found to be the only variable besides smoking to be significantly associated with IBS in our study, with the female gender at an increased likelihood to have IBS (OR=3.73), as compared to males (OR=0.27)
A study set in Iran also found no relationship between BMI and IBS, but reported IBS to be associated with younger age (17)
Commercial airlines prohibit vaping during flights
