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Table 3 Diagnostic scores of CCA test against 'gold standard' of double Kato-Katz smear

From: Epidemiology and control of intestinal schistosomiasis on the Sesse Islands, Uganda: integrating malacology and parasitology to tailor local treatment recommendations

Trace call

SS

(95% CIs)

SP

(95% CIs)

PPV

(95% CIs)

NPV

(95% CIs)

Positive

78.2

(72.1-83.5)

66.3

(61.7-70.8)

52.6

(46.9-58.2)

86.4

(82.4-89.9)

Negative

63.5

(56.6-69.9)

86.4

(82.9-89.5)

69.1

(62.1-75.5)

83.2

(79.5-86.5)

  1. 'Positive' refers to 'trace' calls on the CCA test being considered positive, whereas 'Negative' refers to counting 'trace' results as negative.