Social & Preventive Medicine In case control study of buccal carcinoma: A CA is commoner in zarda pan users than non-users B Zarda pan is a cause of buccal CA C Zarda pan is associated with buccal CA D If use of zarda pan is stopped, number of cases will reduce 💡 Explanation In case control study of buccal carcinoma: ✓ Correct Answer: C. Zarda pan is associated with buccal CA