Journal of Environmental and Public Health / 2019 / Article / Tab 4

Research Article

The National Tuberculosis Control Programme of Liberia Laboratory Programme Performance

Table 4

EQA participation, documentation, and reporting for TB microscopy testing.

Factors related to documentation and reportingMicroscopy sites (laboratories) (N = 93)
NumberFrequency (%)

Availability of standard operating procedures (SOPs)
 Yes55
 No8895
Timely result reporting
 Yes9096
 No34
Quality-control slides provided by TB programme
 Yes910
 No8490
Slides kept for EQA (blind rechecking) by TB programme
 Yes2931
 No6469
EQA performance problem
 Yes78
 No8692
EQA corrective action
 Yes89
 No8591

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