A comparision of the yield of three tuberculosis screening modalities among people living with HIV: a retrospective quasi-experiemental study

Table 2 TB yield per screening modality

TB screening modality	N (%)	TB cases (%)	TB Yield	Time at risk^a	CDR^b	95 % CI
Passive Case Finding	535 (21.8)	10 (3.7)	1.86 %	647	15.4	5.9 – 24.9
Embedded – ICF	876 (35.6)	131 (47.6)	14.95 %	951	137.8	115.8 – 159.7
Independent – ICF	1047 (42.6)	134 (48.7)	12.47 %	1081	123.9	104.3 – 143.6
Any screening modality	2458 (100)	275 (100)	11.18 %	2679	102.7	91.2 – 114.1

Abbreviations: ICF intensified case finding, CI confidence interval, TB tuberculosis, N number of patients screened, PYO person years of observation
^aTime at risk is in person years of observation
^bCase detection Rate per 1000 person years of observation

ISSN: 1471-2458