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Table 5 Differences in intake of food items that rich in vitamin D between cases and controls

From: Knowledge and attitudes about vitamin D, and behaviors related to vitamin D in adults with and without coronary heart disease in Saudi Arabia

Food items Cases Controls Mann-Whitney U Z-value P-value*
Median Range Median Range
Milk 0.50 0–3 0.28 0–3 9700.5 -3.701 .001
Butter 0 0–1 0 0–2 10157.0 -4.018 .001
Eggs 0.28 0–1 0.28 0–1 12205.5 -0.581 .561
Oily fish 0 0–1 0.14 0–2 10399.0 -2.877 .004
Liver 0 0–1 0 0–0.79 10700.5 -2.978 .003
  1. * P-value based on Mann-Whitney U test