Postby BasuSiddha23 » Mon Apr 23, 2018 9:29 pm
UTF-8 U+6211 U+662F wrote:Froggie wrote:Asking questions a week before states yay
1). Should attack rate be in a percentage form? Should relative risk be in percentage form? Should odds ratio be in percentage form?
2). This was a question on a test: Number ill and exposed = 51, Number not ill and exposed = 34, Number ill and not exposed = 2, number not ill and not exposed = 13. The answer sheet says that the attributable risk is 46.67%, but I keep getting 362%. Can someone explain?
1) AFAIK it doesn't matter, but I would just use numbers.
2) (51/85) - (2/15) = 0.4667 = 46.67%
I'm certain that attack rate is a percentage. As for odds ratio and relative risk, they are shown as decimal numbers as a ratio to 1. For example, an odds ratio or relative risk could be 43 as in 43 to 1.
2017 (Rustin, Little Tiger, Regionals, States)
Wind Power (-/3/1/2) Road Scholar (10/-/2/4) Bottle Rockets (6/-/1/3)
2018 (Rustin, Little Tiger, Regionals)
Thermodynamics (5/2/1) Road Scholar (6/3/1) Hovercraft (-/6/5) Disease Detectives (-/-/2)