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Table 1 Occurrence of tuberculosis among the household contacts with and without symptoms by regions in 2008

From: Tuberculosis burden in China: a high prevalence of pulmonary tuberculosis in household contacts with and without symptoms

 

Index patients

Overall

 

With symptoms

Without symptoms

Case

Contact

Prevalence

Notification

Case

Contact

Prevalence

Case

Contact

Prevalence

    

1/100,000

1/100,000

  

1/100,000

  

1/100,000

Overall

1575

92

3355

2742

73.33

46

254

18110

46

3101

1483

Positive cases

1575

21

3355

626

43.94

12

254

4724

9

3101

290

By regions

           

Mega polis

175

2

363

551

21.77

1

15

6667

1

348

287

Centre region

437

26

661

3933

77.22

9

46

19565

17

615

2764

Eastern region

465

58

1051

5519

81.05

34

150

22667

24

901

2664

Western region

498

6

1280

469

79.93

2

43

4651

4

1237

323

  1. Index patient: the first positive patient was found in family.
  2. Case: the active pulmonary tuberculosis was found among the household contacts.
  3. Contact: the number of family members who have contacted with the index patients.
  4. Positive cases: the smear positive patients were found among the household contacts.
  5. By regions: we divided whole country into 4 regions based on the distribution of TB in China.