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Reported Tuberculosis in the United States, 2021						Print
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Table 22. Sputum Culture Conversion: United States, 2010–20191
See Surveillance Slide #58.
Sputum culture conversion.
**Year**
**Total cases2**
**Sputum culture conversion documented3**
**Sputum culture conversion not documented4**
**Sputum culture conversion unknown**
**Reason sputum culture conversion not documented****Cannot produce sputum**
**Sputum not collected**
**Died**
**Refused**
**Lost to follow-up**
**Other**
**Unknown/****missing****No.**
**(%)**
**No.**
**(%)**
**No.**
**(%)**
**No.**
**(%)**
**No.**
**(%)**
**No.**
**(%)**
**No.**
**(%)**
**No.**
**(%)**
**No.**
**(%)**
**No.**
**(%)**2019
5,047
4,394
(87.1)
612
(12.1)
41
(0.8)
61
(10.0)
129
(21.1)
250
(40.8)
8
(1.3)
25
(4.1)
93
(15.2)
46
(7.5)2018
5,089
4,467
(87.8)
585
(11.5)
37
(0.7)
61
(10.4)
134
(22.9)
226
(38.6)
7
(1.2)
25
(4.3)
97
(16.6)
35
(6.0)2017
5,107
4,430
(86.7)
632
(12.4)
45
(0.9)
42
(6.6)
112
(17.7)
229
(36.2)
6
(0.9)
27
(4.3)
104
(16.5)
112
(17.7)2016
5,124
4,336
(84.6)
708
(13.8)
80
(1.6)
40
(5.6)
114
(16.1)
250
(35.3)
3
(0.4)
22
(3.1)
91
(12.9)
188
(26.6)2015
5,281
4,680
(88.6)
521
(9.9)
80
(1.5)
47
(9.0)
121
(23.2)
207
(39.7)
6
(1.2)
19
(3.6)
83
(15.9)
38
(7.3)2014
5,166
4,615
(89.3)
512
(9.9)
39
(0.8)
28
(5.5)
121
(23.6)
217
(42.4)
10
(2.0)
18
(3.5)
98
(19.1)
20
(3.9)2013
5,232
4,612
(88.1)
574
(11.0)
46
(0.9)
45
(7.8)
117
(20.4)
226
(39.4)
12
(2.1)
22
(3.8)
133
(23.2)
19
(3.3)2012
5,284
4,605
(87.1)
603
(11.4)
76
(1.4)
55
(9.1)
164
(27.2)
206
(34.2)
4
(0.7)
24
(4.0)
120
(19.9)
30
(5.0)2011
5,645
4,906
(86.9)
705
(12.5)
34
(0.6)
60
(8.5)
158
(22.4)
254
(36.0)
5
(0.7)
39
(5.5)
161
(22.8)
28
(4.0)2010
5,764
4,957
(86.0)
720
(12.5)
87
(1.5)
69
(9.6)
174
(24.2)
243
(33.8)
12
(1.7)
40
(5.6)
141
(19.6)
41
(5.7)1Most recent year for which data are complete.2Persons alive at diagnosis who had a positive sputum culture.3Persons who had a positive sputum culture conversion documented.4Persons who did not have a documented culture conversion (excludes persons with an unknown culture conversion result).Table Printing Tips
							
					
							Last Reviewed:  November 29, 2022						Source: 	Division of Tuberculosis Elimination, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention
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