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Table 2 Types and prevalence of dietary supplement used

From: Dietary supplement use among undergraduate male students in health and non-health cluster colleges of a public-sector university in Dammam, Saudi Arabia

Types of dietary supplements used Alone As combination
Multivitamins 44 (9.4) 42 (9)
Gingko biloba 1 (0.2)
Ginseng 3 (0.6)
Glucosamine/omega 3 FA 3 (0.6) 32 (6.8)
Whey protein 38 (8.1) 38 (8.1)
Calcium 1 (0.2)
Creatine phosphate 1 (0.2)
More than one supplement 64 (13.6)
Not applicable 318 (67.8)
Cluster-wise prevalence Prevalence (%) 95% confidence interval
 All colleges 29.4 25.3–33.8%
 Health cluster colleges 35.9 29.6–42.6%
 Non-health cluster colleges 23.7 18.5–29.5%
College-wise prevalence
 Pharmacy 34.3 23.4–46.6%
 Medicine 39.1 29.1–49.9%
 Nursing 18.2 5.2–40.3%
 Applied Medical Science 40 23.9–57.9%
 Sharia and law 12.8 4.3–27.4%
 Architecture and planning 14 6.6–25.8%
 Engineering 41.7 25.5–59.2%
 Applied studies and community service 18.5 6.3–38.1%
 Business 37.2 23–53.3%
 Science 19.2 9.2–33.3%
Study year-wise prevalence
 Prep year 16.7 9.4–26.4%
 2nd year 24.5 17.6–32.5%
 3rd year 29.4 20.3–39.8%
 4th year 37.3 25–50.6%
 5th year 42.7 32.3–53.6%
 6th year 42.9 9.9–81.6%