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Table 3 Characteristics of the index case

From: Tuberculosis outbreaks among students in mainland China: a systematic review and meta-analysis

Characteristic

Number of studies

Number of patients

Percentage (%)

Sex

72

  

 Male

54

75.00

 Female

18

25.00

Family history

17

  

 Yes

7

41.20

 No

10

58.80

Type of school

107

  

 Junior middle school

10

9.30

 Senior middle school

66

61.70

 University or college

31

29.00

Sputum smear

90

  

 Positive

75

83.30

 Negative

15

16.70

Smear positive

20

  

 1+

5

25.00

 2+

6

30.00

 3+

4

20.00

 4+

5

25.00

Case-finding interval

95

  

 2 months or less

50

52.60

 More than 2 months

45

47.40

Cavernous pulmonary TB

20

20

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  1. ---- no data in the cell