Comparing the Quality of Iodine in Edible Salt in Iranian Households Living in the Southern Province of Khorasan-e-Razavi Using WHO Standards (Years 2010–2015)

Table 4

Comparing average iodine values in salt samples (ppm).

One-Sample Test
	Test value = 0
		df	value	Mean difference	95% CI
					Max	Min
Iodine	16.299	81	0.000	24.698	21.68	27.71

ppm = part per million.