Choose a dish
attack rate, ate it
attack rate, did not eat it
of the 48 cases ate it
Split by chicken biryani
All dishes
Tap a row to open that dish. A relative risk of 1 means the dish made no difference.
Outbreak investigation · Lab 2
Pick a dish. See its 2 by 2 table, attack rates and relative risk. Then split by biryani to test for confounding.
Tap a row to open that dish. A relative risk of 1 means the dish made no difference.