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Table 1 Urinary iodine levels in children according to consumption of certain foods

From: Results of the national biomonitoring program show persistent iodine deficiency in Israel

Consumption frequency N Median P values *
Low fat milk (0–1%)    
  High 18 118.3 0.33
  Medium or low 148 78.4
Medium fat milk (> 1%)    
  High 130 81.2 0.08
  Medium or low 36 71.2
Chocolate milk    
  High 88 92.9 0.0002
  Medium or low 78 60.8
White/cream cheese    
  High 126 75.4 0.31
  Medium or low 40 87.2
Yogurt    
  High 92 81.8 0.86
  Medium or low 74 79.6
Yellow/salty cheese    
  High 147 81.4 0.01
  Medium or low 19 55.9
Iodized salt **    
  Yes 14 82.7 0.45
  No 145 79.6
Bottled water    
  Yes 59 75.3 0.28
  No 107 83.9
Filtered water    
  Yes 115 79.6 0.81
  No 50 83.2
Non-filtered water    
  Yes 60 83.2 0.38
  No 106 79.7
  1. *Nonpaired Wilcoxon test. Values in bold represent statistically significant results (p < 0.05)
  2. **seven parents didn’t know whether their children consume iodized salt