Describe the strength of the association between seatbelt use and whether one was injured or killed using the odds ratio. Calculate the odds ratio and interpret the result.
Wore Seatbelt: Injured or killed
Yes No Total
Yes 2,409 35,383 37,792
No 3,865 27,037 30,902
Total 6,274 62,420 68,694
Yes - 2409/37792 = 0.0637 or 6.37%
No - 3865/30902 = 0.1250 or 12.5%
How would I go about finding the odds ratio formula wise?