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. Author manuscript; available in PMC: 2008 Dec 8.
Published in final edited form as: Health Educ Behav. 2008 Dec;35(6):866–879. doi: 10.1177/1090198108326164

Table 2.

Predicted Marginals (95% Confidence Interval) for Nutrition-Related Cognitions and Behavioral Intentions, by Demographic and Health Characteristics.

Cognitions
Behavioral Intentions
Respondent Characteristics % Reported Nutrition p- value N of Nutrition Changes Listed p- value % Reported Nutrition p- value N of Nutrition Changes Listed p- value
Sample N 6365 -- 6365 -- 6359 -- 6359 --
Total 51 (49–53) -- 1.15 (1.11–1.19) -- 19 (17–21) -- 0.39 (0.37–0.41) --
Age <.001 <.001 .03 .10
 18–34 39 (34–43) 2.01 (1.87–2.15) 16 (14–18) 2.02 (1.88–2.16)
 35–64 60 (58–62) 2.34 (2.28–2.40) 24 (22–26) 2.08 (2.00–2.16)
 65+ 45 (41–49) 2.25 (2.09–2.41) 10 (8–12) 2.02 (1.78–2.26)
Gender <.001 <.001 <.001 <.001
 Female 55 (53–57) 1.33 (1.27–1.39) 21 (19–23) 0.45 (0.41–0.49)
 Male 48 (46–52) 0.96 (0.90–1.02) 16 (14–18) 0.33 (0.29–0.37)
Education <.001 <.001 <.001 <.001
 ≤ High School 40 (38–42) 0.83 (0.77–0.89) 16 (14–18) 0.31 (0.27–0.35)
 Some College 58 (54–62) 1.30 (1.22–1.38) 21 (19–23) 0.45 (0.39–0.51)
 ≥ College 69 (67–69) 1.72 (1.64–1.80) 25 (23–27) 0.50 (0.46–0.54)
Income <.001 <.001 <.001 <.001
 <$25,000 36 (34–38) 0.76 (0.68–0.84) 14 (12–16) 0.27 (0.23–0.31)
 $25,000–$50,000 51 (47–55) 1.08 (1.00–1.16) 20 (18–22) 0.41 (0.35–0.47)
 >$50,000 65 (63–67) 1.54 (1.461.62) 23 (21–25) 0.48 (0.44–0.52)
Race/Ethnicity <.001 <.001 .04 .02
 White, Non-Hispanic 57 (55–59) 1.30 (1.24–1.36) 20 (18–22) 0.42 (0.38–0.46)
 Black, Non-Hispanic 45 (41–49) 0.95 (0.81–1.09) 19 (15–23) 0.37 (0.29–0.45)
 Hispanic 27 (23–31) 0.59 (0.51–0.67) 14 (10–18) 0.27 (0.21–0.33)
 Other 49 (45–53) 1.06 (0.88–1.24) 19 (13–25) 0.42 (0.26–0.58)
Body Mass Index .21 .003 <.001 <.001
 Underweight (< 18.5) 48 (36–60) 0.97 (0.73–1.21) 10 (4–16) 0.21 (0.05–0.37)
 Normal (18.5–24) 53 (51–55) 1.26 (1.18–1.34) 17 (15–19) 0.34 (0.30–0.38)
 Overweight (25–29) 54 (52–56) 1.19 (1.11–1.27) 19 (17–21) 0.40 (0.36–0.44)
 Obese (30+) 49 (45–53) 1.06 (0.96–1.16) 24 (22–26) 0.51 (0.45–0.57)
Exercise <.001 <.001 .13 .22
 None 42 (40–44) 0.89 (0.83–0.95) 18 (16–20) 0.37 (0.31–0.43)
 Any 55 (53–57) 1.27 (1.21–1.33) 20 (18–22) 0.41 (0.37–0.45)
Fruit & Vegetable Intake <.001 <.001 .003 .003
 < 2 servings 44 (40–48) 0.88 (0.80–0.96) 20 (18–22) 43 (39–47)
 2–4 servings 54 (52–56) 1.21 (1.15–1.27) 20 (18–22) 40 (36–44)
 ≥ 5 Servings 60 (56–64) 1.61 (1.47–1.75) 15 (11–19) 32 (26–38)

Note. P-values are Satterthwaite adjusted. Age and fruit and vegetable intake were modeled continuously; however, they are presented here as categorical variables for descriptive purposes.