Skip to main content

Table 3 Sample distribution by demographic and health characteristics according to the tertiles of factor scores for dietary patterns: National Health and Nutrition Examination Survey (NHANES) 2003-2006a, b

From: Association of serum vitamin D concentrations with dietary patterns in children and adolescents

Characteristic HFLVD Pattern Scorec(n = 4404) PD Pattern Scorec(n = 4404)
Low (<−0.003875) Medium (−0.003875 to 0.000925) High (> 0.000925) P for Trendd Low (< 0.004175) Medium (− 0.004175 to 0.001912) High (> 0.001912) P for Trendd
N 1338 1465 1601   1523 1376 1505  
Sex
 Boys, % 48.6 51.8 54.2 0.165 48.7 55.8 50.1 0.098
 Girls, % 51.4 48.2 45.8   51.3 44.2 49.9  
Race-ethnicity
 NHW, % 70.0 62.2 55.2 < 0.001 61.0 66.4 60.0 0.003
 NHB, % 7.3 13.9 24.7   18.0 13.2 14.7  
 H/MA, % 14.3 14.1 11.5   10.9 13.1 15.9  
 Other, % 8.3 9.8 8.6   10.9 7.3 9.4  
Age
 2–3 y, % 9.6 8.9 6.7 0.003 5.3 8.9 11.0 < 0.001
 4–8 y, % 25.8 26.6 26.8   18.6 30.0 30.4  
 9–13 y, % 34.6 29.4 25.8   27.3 30.7 31.8  
 14–19 y, % 30.1 35.1 40.6   48.8 30.4 26.8  
Poverty income ratioe
 < 1.0, % 16.7 19.6 28.4 < 0.001 20.4 20.0 24.3 0.001
 1.0–2.5, % 33.0 31.9 32.0   32.5 29.8 34.7  
 ≥2.5, % 48.1 44.7 37.2   42.3 48.2 39.3  
 Not reported, % 2.1 3.8 2.4   4.8 2.0 1.6  
Season of Examinationf
 Fall/Winter, % 40.2 39.6 36.8 0.693 39.0 36.3 41.4 0.395
 Spring/Summer, % 59.8 60.4 63.2   61.0 63.7 58.6  
Use of Supplementsg
 Yes, % 38.4 35.3 28.5 0.003 27.0 36.4 38.9 < 0.001
 No, % 61.6 64.7 71.5   73.0 63.6 61.1  
Body mass index
 <85th percentile, % 86.0 84.0 84.5 0.610 81.8 86.2 86.4 0.028
 ≥85th percentile, % 14.0 16.0 15.5   18.2 13.8 13.6  
Daily screen viewingh
 ≤2 h, % 59.8 48.4 41.6 < 0.001 42.7 51.6 55.4 < 0.001
 3–4 h, % 25.1 28.8 31.5   30.2 27.8 27.4  
 > 4 h, % 15.2 22.8 26.9   27.0 20.6 17.3  
  1. an = 4404; weighted n = 60,274,698. NHANES 2003–2004 and 2005–2006 were combined into one master database, NHANES 2003–2006
  2. bDietary pattern scores were stratified into tertiles (low, medium, and high) based on factor scores for each dietary pattern
  3. cHigh-Fat-Low-Vegetable Dietary pattern or Prudent Dietary pattern
  4. dSignificance determined by Rao-Scott chi-square test
  5. eRatio of income to the family’s appropriate poverty threshold. A ratio of < 1.0 is characterized as below poverty
  6. fData collected during May 1–October 31 (spring/summer) and November 1–April 30 (fall/winter)
  7. gParticipants who took supplements 30 days before survey was conducted
  8. hData collected on the combined hours of television, computer, and video games usage per day