Calculate the crude odds ratio

Reference no: EM13314748

The relationship between cigarette smoking and lung cancer was conducted in a case-control study with 700 cases and 425 controls. Using the results below, calculate the crude odds ratio and explain what the ratio means: Heavy Smoking—Cases: 450; Controls: 200 Not Heavy Smoking—Cases: 250; Controls: 225

Reference no: EM13314748

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