Table 1.

The probability* of the true population value of GAM exceeding the 10% threshold for different counts of GAM cases and different design effects in a 33 × 6 (33 clusters of 6 children) survey.

Observed GAM count	GAM prevalence	Probability of GAM exceeding 10% threshold, %
		DEFF** = 1	DEFF** = 1.1	DEFF** = 1.2	DEFF** = 1.3
14	7.1%	9.0%	10.0%	10.9%	11.9%
15	7.6%	13.2%	14.3%	15.4%	16.3%
16	8.1%	18.7%	19.9%	20.9%	21.8%
17	8.6%	25.6%	26.6%	27.5%	28.2%
18	9.1%	33.6%	34.4%	35.0%	35.5%
19	9.6%	42.5%	42.9%	43.2%	43.5%
20	10.1%	51.9%	51.8%	51.7%	51.6%
21	10.6%	61.0%	60.6%	60.2%	59.8%
22	11.1%	69.6%	68.9%	68.1%	67.5%
23	11.6%	77.1%	76.2%	75.3%	74.5%

* Based on the one-sided t-test with 32 degrees of freedom

** Design effect