Salt Used for the National School Nutrition Program (NSNP) in Rural Schools of Limpopo Province, South Africa, has Adequate Levels of Iodine

Table 2

Iodine content mean values for Mopani and Vhembe districts.

District	Mean ± SD (N = 159)	Median (N = 159)	value
Mopani	36.53 ± 27.88 ppm	31.65 ppm (IQR: 23.50–43.30 ppm)	0.428
Vhembe	34.24 ± 23.46 ppm	32.56 ppm (IQR:14.41–51.51 ppm)