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In 2019, there were 775,764 reported PTB cases in the NNDRS, of which 349,307 were bacteriologically-confirmed cases. The rate of reported PTB was 55.55 per 100,000, and the rate of reported bacteriologically-confirmed (Bac+) was 25.01 per 100,000. Compared with 2018, PTB cases fell by 6.3%, while the Bac+ cases increased by 25.9%. The annual rate of decrease of reported PTB was 3.4% during 2015–2019 (Table 1). The number of reported PTB cases was ranked 2 in Class A and Class B notifiable infectious diseases during 2015–2019, right behind hepatitis B.
Year Population
(10,000)No. of reported PTB Rate of reported PTB (1/100,000) PTB Bac+* PTB Bac+ 2015 136,247 864,015 247,168 63.42 18.14 2016 137,343 836,236 237,942 61.00 17.36 2017 137,923 835,193 244,302 60.53 17.71 2018 138,910 823,342 277,439 59.27 19.97 2019 139,654 775,764 349,307 55.55 25.01 * Bac+: bacteriologically confirmed. Table 1. The number and case notification rate of reported pulmonary tuberculosis (PTB) in China, 2015–2019.
In 2019, the five PLADs with the highest rate of reported PTB were: Tibet (182.38 per 100,000), Xinjiang (169.05 per 100,000), Qinghai (134.53 per 100,000), Guizhou (102.51 per 100,000), and Hainan (90.22 per 100,000 (Figure 1A); the five PLADs with highest number of reported PTB cases were: Guangdong (66,261), Hunan (56,620), Sichuan (50,337), Henan (49,753), and Xinjiang (42,043) (Figure 1B).
Figure 1.Geographical distribution of the reported pulmonary tuberculosis (PTB) in 31 PLADs of China, 2019. (A) Rate of reported PTB; (B) Number of reported PTB.
TB affects both males and females in all age groups. There were 533,981 reported male PTB cases with a case rate of 74.84 per 100,000 population and 241,783 reported female cases with a case rate of 35.40 per 100,000. There were 8,116 cases in children aged 0–14 years (1.0%), and 197,730 cases in the adults aged 65 years and over (25.5%). The case rate of reported PTB increased with age and was higher in older age groups (Table 2).
Age group
(years)Population (10,000) No. of reperted PTB Rate of reported PTB Male Female Total Male Female Total Male Female Total 0– 4,406 3,992 8,397 398 350 748 0.90 0.88 0.89 5– 8,272 7,032 15,303 3,558 3,810 7,368 4.30 5.42 4.81 15– 8,187 7,239 15,425 66,038 38,929 104,967 80.67 53.78 68.05 25– 11,834 11,293 23,127 70,973 41,444 112,417 59.97 36.70 48.61 35– 10,260 9,948 20,207 56,276 27,233 83,509 54.85 27.38 41.33 45– 12,248 11,923 24,171 98,033 35,739 133,772 80.04 29.98 55.35 55– 8,311 8,212 16,523 100,432 34,821 135,253 120.84 42.40 81.86 ≥65 7,831 8,668 16,500 138,273 59,457 197,730 176.56 68.59 119.84 Total 71,348 68,305 139,654 533,981 241,783 775,764 74.84 35.40 55.55 Table 2. The number and case notification rate of reported pulmonary tuberculosis (PTB) in different gender and age groups, 2019.
Of the reported cases, 470,932 were farmers (60.71%), the highest among all occupations, 111,006 were house workers (14.31%), 47,732 were students (6.15%), 41,324 were retirees (5.33%), and 34,094 were factory workers (4.39%) (Table 3).
Category No. of reported PTB Proportion (%) Child 1,433 0.18 Student 47,732 6.15 Teacher 4,280 0.55 Service staff 16,087 2.07 Healthcare worker 4,018 0.52 Factory worker 34,094 4.39 Farmer 470,932 60.71 Government official 12,742 1.64 Retiree 41,324 5.33 House worker 111,006 14.31 Others 20,547 2.65 Not applicable 115,69 1.49 Total 775,764 100.00 Table 3. Reported pulmonary tuberculosis (PTB) cases by occupation, 2019.
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