Table 3 Measurement of performance of local radiographers in echocardiography-based screening (“negative” refers to a normal screening evaluation; “positive” refers to a screening evaluation that is abnormal)
From: Prevalence of rheumatic heart disease in Zambian school children
Number of screening tests | Local radiographers | Quality assurance specialist |
|---|---|---|
450 | Negative | Negative |
12 | Negative | Positive |
8 | Positive | Positive |
8 | Positive | Negative |