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Table 2 Nutrients intake and physical activity of respondents aged 20 years and above, NHANES 2013–2014 (n = 4386)

From: Niacin, lutein and zeaxanthin and physical activity have an impact on Charlson comorbidity index using zero-inflated negative binomial regression model: National Health and Nutrition Examination Survey 2013–2014

 Study Participants
VariableMean (SE) * or n (%*)
Protein (gm)82.7 (0.93)
Carbohydrate (gm)245.3 (1.80)
Dietary fiber (gm)17.0 (0.27)
Total fat (gm)80.4 (0.76)
Vitamin A (mcg)634.5 (15.22)
Thiamin (Vitamin B1) (mg)7.5 (1.24)
Riboflavin (Vitamin B2) (mg)4.6 (0.31)
Niacin (mg)37.1 (1.34)
Vitamin B6 (mg)7.4 (1.96)
Folate (mcg)526.8 (9.63)
Vitamin B12 (mcg)78.3 (6.60)
Vitamin C (mg)178.7 (9.00)
Vitamin K (mcg)133.8 (6.00)
Vitamin D (D2 + D3) (mcg)18.1 (0.77)
Vitamin E (mg)10.1 (0.22)
Calcium (gm)1.1 (0.02)
Phosphorus (gm)1.4 (0.02)
Magnesium (mg)331.9 (5.5)
Iron (mg)17.9 (0.34)
Zinc (mg)15.5 (0.30)
Copper (mg)1.5 (0.03)
Sodium (gm)3.5 (0.03)
Potassium (gm)2.7 (0.04)
Selenium (mcg)132.9 (1.65)
Water (kg)2.9 (0.05)
Cholesterol (mg)292.5 (4.46)
Lycopene (mg)5.1 (0.11)
Lutein + zeaxanthin (mg)1.8 (0.06)
Alpha-carotene (mcg)419.3 (22.9)
Beta-carotene (mg)2.3 (0.10)
Beta-cryptoxanthin (mcg)84.9 (3.11)
Total choline (mg)336.2 (4.84)
Hours sedentary activity7.1 (0.10)
Vigorous work activity
 Yes847 (20.1)
 No3539 (79.9)
Moderate work activity
 Yes1516 (36.9)
 No2870 (63.1)
Vigorous recreational activity
 Yes1017 (25.3)
 No3369 (74.7)
Moderate recreational activity
 Yes1870 (45.6)
 No2516 (54.4)
  1. *All data are weighted to be nationally representative