Feasibility and validity of telephone triage for adverse events during a voluntary medical male circumcision campaign in Swaziland

Table 5 Validity of AE algorithms by clinical confirmation of triage nurse diagnoses (n = 89)

Characteristic	Diagnosed as moderate or severe AE by VMMC site clinicians	Diagnosed as not moderate or severe AE by VMMC site clinicians	Total
Diagnosed as moderate or severe AE by telephone triage	43	9	52	Positive predictive value = 82.7%
Diagnosed as not moderate or severe AE by telephone triage	19	18	37	Negative predictive value = 48.6%
Total	62	27	89
	Sensitivity = 69.4%	Specificity = 66.7%

Note: Sensitivity = a/(a + c); specificity = d/(b + d); positive predictive value = a/(a + b); negative predictive value = d/(c + d).

ISSN: 1471-2458