Abstract P213 Table 1

Microbiological and radiological results

Total (2011–2016)Pulmonary n=1353Intra-thoracic node n=170
Normal CXR (6/52 pre-treatment)
No data		95 (7% total)
184		39 (23% total)
49
Of those with normal CXR: Positive on any sample
n (%) 		Yield (% of positive tests from total sent)a Positive on any sample
n (%) 		Yield (% of positive tests from total sent)a
Abnormal CT
Normal CT
No data 		53 (56%)
5 (5%)
37 (39%) 		-
- 		20 (51%)
1 (3%)
18 (46%) 		-
-
AFB smear positiveb
- Spontaneous
- Induced
- BALc 		4 (4%) 4 of 106 (4%)
1 of 20 (5%)
0 of 19 		0 0 of 17
0 of 8
-
M.Tb culture positive
- Spontaneous
- Induced
- BAL 		41 (43%) 40 of 106 (38%)
6 of 20 (30%)
6 of 19 (32%) 		3 (8%) 2 of 17 (12%)
1 of 8 (13%)
-
Positive TB PCRd
Negative TB PCR
No data 		9 (10%)
20 (21%)
66 (70%) 		-
- 		0
3 (8%)
36 (92%) 		-
-

  • a. samples sent on same day collected by same means excluded from yield, b. AFB – acid fast bacilli, c. BAL – broncho-alveolar lavage, d. PCR – polymerase chain reaction