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Table 3 Statistical power and sample size assessment for specific aim 1a for n = 268 subjects per group (N = 536 total subjects)

From: Short-course Benznidazole treatment to reduce Trypanosoma cruzi parasitic load in women of reproductive age (BETTY): a non-inferiority randomized controlled trial study protocol

60da

(%)

30da

(%)

Placeboa

(%)

Effect sizea

(%)

Proportion retained

NI margina

(%)

Power

(%)

15.0

15.0

55.0

40.0

0.75

10.0

90

18.0

18.0

55.0

34.0

0.75

9.3

80

15.0

18.0

55.0

40.0

0.70

12.0

80

  1. aCells show PCR positive rate