1. In a study that assessed the relationship between coffee consumption and pancreatic cancer, the investigators interviewed 400 cancer patients and 800 controls about their coffee consumption.224 of the cases were coffee drinkers ( 5 cups per day)and 176 were non-coffee drinkers. Of the 800 controls, 352 were coffee drinkers and 448 were non-coffee drinkers.

Construct a 2 x 2 by table. Calculate the measure of association for this study and interpret the results