Incidence of the cancer of oral cavity and pharynx in Pakistan

The incidence rates of carcinoma of oral cavity and pharynx were calculated for males and merles from multicentric data on the frequency of various tumours collected by Pakistan Medical search Council during 1973-74 and 197, 80 for four cities, Karachi, Hyderabad, Lahore and Peshawar. The incidence rate of carcinoma of the oral cavity in both males and females has decreased 1977--80 as compared to 1973-74 while that of carcinoma pharynx has increased