RESUMEN
Comparative study of compulsory declarations registered at the provincial level and at the central level between January 1st 1993 and 31st December 1994 showed a high prevalence of tuberculosis in the province of Mahajanga and an under-declaration of cases at the provincial level was almost 25% with regard to data collected at the central level. Smear-positive pulmonary tuberculosis patients were the most frequent (86%), which showed respect towards the National Control Programme instructions. Extrapulmonary tuberculosis were under-estimated (less than 10%) because of the weak diagnosis means. Smear-positive pulmonary tuberculosis under treatment in the city of Mahajanga were cured globally at 80%. The difference between the centres diminished between 1992 and 1993, then it persisted requiring the improvement of tubercular management conditions within the province structures and most particularly within the city of Mahajanga structures which are at the present taking charge of more than 50% of the province tubercular.