 , low Vitamin D levels ( p-value 0.002-0.006, smaller sample, \sim 50 countries  ).
<meaning-changed>  , low Vitamin D levels ( p-value 0.002-0.006, smaller sample, \sim 50 countries  ).
 . We also find a correlation with low Vitamin D levels ( p-value 0.002-0.006, smaller sample, \sim 50 countries ).