A team of epidemiologists conducts a case-control study to investigate a potential link between the use of a specific pre-workout dietary supplement and the occurrence of new-onset atrial fibrillation in adults under the age of 40. The researchers identify 150 patients diagnosed with new-onset atrial fibrillation (cases) and 300 healthy matched individuals without a cardiac history (controls).
Detailed dietary history interviews indicate that 90 of the patients with atrial fibrillation regularly consumed the pre-workout supplement in the month preceding their diagnosis. Among the healthy controls, 120 reported regular consumption of the same supplement.
Based on these findings, what is the odds ratio for the association between regular consumption of the pre-workout supplement and the development of new-onset atrial fibrillation? (Provide the exact value).
Answer: 2.25