1. Tuberculosis Mortality in Different Age and Sex

Children under 14 years old had the lowest tuberculosis mortality. It rose gradually from 20 years of age and rose steeply after 40 years of age. It reached the peak at the age of 65. Tuberculosis mortality in female at 20 - 29 years of age was slightly higher than that of male but it was lower than male after 40 years of age (Table 7). The overall weighted tuberculosis mortality was 20.9/100,000. As compared with the tuberculosis mortality (35/100,000) in 1984/85, the mortality in present survey showed a 40.0% decrease and the annual reduction rate was 8.9%.

　

　

The weighted mortality of pulmonary tuberculosis was 19.3/100,000. In comparison with the mortality (31/100,000) in 1984/85 survey, it showed a 37.7% decrease and the annual reduction was 8.3%.

　

2 Tuberculosis Mortality in City and Countryside in Provinces

　

Tuberculosis mortality in Provinces, Municipalities and regions showed a big difference. The following provinces had a higher mortality: Xingjiang (57.1/100,000), Jiangxi (48.6/100,000), Hainan (35.3/100,000), Hunan (32.7/100,000), Hubei (32.0/100,000), Guizhou (31.8/100,000), Sichuan (30.1/1O0,000). The were six provinces and municipalities had a mortality lower than 10/100,000: i.e. Shanghai (1.5/100,000), Ninxia (3.1/100,000), Beijing (5.2/100,000), Shaanxi (6.3/100,000), Hebei (7.6/100,000) and Shandong (8.2/100,000). The moralities in the first group of provinces was 7-21 times higher than that of the second group. The fact indicated that the there was a big difference of tuberculosis mortality in different provinces.

Tuberculosis mortality in city and countryside: The tuberculosis mortality in countryside, town and city were 22.8/100,000, 15.8/100,000 and 8.3/100,000 respectively. The ratio of tuberculosis mortality among countryside, town and city (as 1) was 2.7:1.9:1.0. Obviously, mortality in countryside was much higher than that in city and town.

　

3. Rank and Percentage of Tuberculosis Deaths Among Leading Causes of Death

　

Tuberculosis deaths ranked seventh among the leading causes of death and made up 4.0% of total deaths. Tuberculosis deaths amounted to 68.3% of total deaths of communicable diseases. The above figures in 1984/85 survey were 7, 5.7 and 66.5% and showed no significant difference.

Refarding age group, 0-4 age group had the lowest percentage of tuberculosis death among total death; 5-9 and 10-14 age groups next. It increased after 15 years of age and 30-59 age group had the highest percentage. The percentage decrease after seventy years of age. The fact indicated that the tuberculosis death in infant and children was significantly decreased day by day.

　

4. Age of Tuberculosis Death

　

The average age of tuberculosis death, pulmonary tuberculosis death and extra-pulmonary tuberculosis death were 53.4 years, 54.8 years and 33.5 years respectively.

The distribution of pulmonary tuberculosis death by age group was as follows: 0-14 age group had the lowest (1.0%); 15-29 years (5.4%) and 75 years above (10.5%) followed; 60-74 years had the highest (40.5%). The distribution of pulmonary tuberculosis death according to sex and in various age groups showed no significant difference (Table 8).

　

5. Mortality from Tuberculous Meningitis

　

　

Out of 314 deaths from tuberculosis, 10 were from tuberculous meninitiw. two of them were children under 14 years of age and one of these was children under 4 years old. The mortalities from tuberculous meningitis in 0-14 and 0-4 age groups were 0.5/100,000 and 0.8/100,000 respectively.

　

6. Tuberculosis Fatality and Cause of Death

　

The weighted prevalence of pulmonary tuberculosis for the whole country in 1990

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