[Comparative study on results of pulmonary tuberculosis surveillance before and during implementation of tuberculosis control project in Ningxia Hui autonomous region]

To understand the effect of the World Bank-loaned tuberculosis control project in Ningxia Hui autonomous region.

Five counties which can reflect the situation of tuberculosis control in Ningxia were selected for observation, and the same method of surveillance was carried out. The subjects investigated were required to fill in the surveillance and the project forms at the same time, and the data of the tuberculosis control before (1990, 1991) and during (1995, 1996) implementation of the project were compared.

The registration rate of new smear-positive patients was 20.35 per 100,000 population during the implementation of the project, with a 3.06 times increase compared with that before implementation of the project. The proportion of new smear-positive patients increased from 21.37% to 61.70%, the smear-positive rate of newly registered patients from 22.80% to 35.32%, and the finding rate of new smear-positive patients from 7.97% to 31.11%. The mortality rate of pulmonary tuberculosis decreased by 58.36%. The total impact of finding and treatment increased from 7.60% to 31.90%.

Satisfactory results have been achieved during the implementation of the project in Ningxia.