|
Age, years
|
|
Mean (standard deviation)
|
25 (4.2)
|
21.4 (15.9)
|
37.7 (13.4)
|
44.4 (21.9)
|
|
Median
|
25
|
21
|
44
|
40
|
|
Minimum to maximum
|
22–28
|
0–59
|
18–56
|
1–92
|
|
Percentage of cases with cavitation on chest radiograph
|
100
|
0
|
57.1#
|
3.3
|
|
Number of total contacts per case
|
|
Mean
|
811.5§
|
3.2
|
106
|
18.5
|
|
Median
|
811.5
|
0
|
51
|
6
|
|
Minimum to maximum
|
488–1135
|
0–34
|
10–672
|
0–189
|
|
75% –25% interquartile range
|
647
|
1
|
79
|
9
|
|
Number of close contacts per case
|
|
Mean
|
72§
|
1.9
|
47.7
|
9.4
|
|
Median
|
72
|
0
|
17
|
5
|
|
Minimum to maximum
|
69–75
|
0–18
|
0–465
|
0–80
|
|
75% – 25% interquartile range
|
6
|
0
|
29
|
10
|
|
Number of child-age† contacts per case
|
|
Mean
|
27
|
0.7
|
3.9
|
2.2
|
|
Median
|
27
|
0
|
2
|
1
|
|
Minimum to maximum
|
26–28
|
0–8
|
0–23
|
0–17
|
|
75% – 25% interquartile range
|
2
|
0
|
5
|
3
|
|
Number of new TST positive tests among contacts
|
|
Mean
|
15.5
|
0.2
|
1.8
|
0.3
|
|
Median
|
15.5
|
0
|
1
|
0
|
|
Minimum to maximum
|
13–18
|
0–2
|
0–13
|
0–2
|
|
75% – 25% interquartile range
|
5
|
0
|
2
|
0
|
|
Number of TST conversions among contacts
|
|
Mean
|
14.5
|
0.1
|
1.9
|
0.3
|
|
Median
|
14.5
|
0
|
1
|
0
|
|
Minimum to maximum
|
12–17
|
0–2
|
0–20
|
0–1
|
|
75% – 25% interquartile range
|
5
|
0
|
1
|
0
|
|
Percentage of diagnoses made during cold season
|
100
|
92.5
|
46.7
|
38.7
|
|
Percentage of cases living on reserve
|
100
|
25.9
|
73.3
|
48.4
|
