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Table 1 Daily intake of total grain and whole grain ounce equivalents based on NHANES data (2001–02 to 2011–2012)a,b,c,d

From: Whole grain consumption trends and associations with body weight measures in the United States: results from the cross sectional National Health and Nutrition Examination Survey 2001–2012

Age-group

2001–2002

2003–2004

2005–2006

2007–2008

2009–2010

2011–12

P for linear trend

P for curvilinear trend

Total grain (oz eq/d)

  
 

Mean ounce equivalent ± standard errorb

  

n

3147

2747

2838

2134

2263

2151

  

6–18 years

7.4 ± 0.1

7.5 ± 0.1

7.4 ± 0.1

6.8 ± 0.2

7.2 ± 0. 2

7.2 ± 0.2

0.0476

0.3292

n

4647

4456

4405

5477

5820

4878

  

19+ years

6.9 ± 0.1

6.8 ± 0.1

6.7 ± 0.1

6.4 ± 0.1*

6.5 ± 0.1*

6.8 ± 0.1

0.1513

0.0041

Whole grain (oz eq/d)

      
 

Mean ounce equivalent ± standard errorb

  

n

3147

2747

2838

2134

2263

2151

  

6–18 years

0.56 ± 0.03*

0.49 ± 0.03*

0.49 ± 0.04*

0.53 ± 0.04*

0.61 ± 0.02*

0.74 ± 0.03

<0.0001

<0.0001

n

4647

4456

4405

5477

5820

4878

  

19+ years

0.72 ± 0.03**

0.63 ± 0.03**

0.73 ± 0.03**

0.69 ± 0.04**

0.84 ± 0.04**

0.97 ± 0.05

<0.0001

0.0007

  1. aDay 1 from foods only, excluding pregnant and breastfeeding women
  2. bMean Total Grain (oz eq/d) and Whole Grain (oz eq/d) intake were calculated using PROC SURVEYMEANS for all the 2 year cycles.
  3. cRegression analysis was performed to understand the linear and curvilinear trend in mean Total Grain and Whole Grain intake across different years of NHANES
  4. dANOVA was performed to compare mean Total Grain and Whole Grain intake of every cycle of NHANES with 2011–12
  5. *Mean Total Grain intake is significantly different than mean Total Grain intake of 2011–12 (p < 0.05)
  6. **Mean Whole Grain intake is significantly different than mean Whole Grain intake of 2011–12 (p < 0.05)