Table 4 Sociodemographic, behavioural, and knowledge-related correlates of the Food Processing Knowledge Score, International Food Policy Study, 2018 (n = 22,102)
|  | Parameter estimate (β) | 95% CI | p-value |
|---|---|---|---|
Country | |||
 Australia vs. Canada | 0.07 | −0.01, 0.14 | 0.08 |
 Australia vs. Mexico | 0.22 | 0.13, 0.30 | *0.001 |
 Australia vs. United Kingdom | 0.09 | 0.01, 0.16 | *0.02 |
 Australia vs. United States | 0.40 | 0.32, 0.48 | * < .001 |
 Canada vs. Mexico | 0.15 | 0.06, 0.23 | * < .001 |
 Canada vs. United Kingdom | 0.02 | −0.05, 0.09 | 0.61 |
 Canada vs. United States | 0.33 | 0.25, 0.41 | * < .001 |
 Mexico vs. United Kingdom | −0.13 | −0.21, − 0.05 | *0.002 |
 Mexico vs. United States | 0.18 | 0.10, 0.27 | * < .001 |
 United Kingdom vs. United States | 0.31 | 0.23, 0.39 | * < .001 |
Age group | |||
 30–44 years vs. 60+ years | −0.17 | −0.24, − 0.09 | * < 0.001 |
 45–59 years vs. 60+ years | − 0.10 | −0.17, − 0.04 | *0.002 |
 60+ years vs. 18–29 years | 0.13 | 0.04, 0.21 | *0.002 |
Sex | |||
 Female vs. Male | 0.26 | 0.21, 0.32 | * < .001 |
Ethnicity | |||
 Majority vs. Minority | 0.19 | 0.11, 0.26 | * < .001 |
Education Level | |||
 Medium vs. Low | 0.02 | −0.05, 0.08 | 0.58 |
 High vs. Medium | 0.01 | −0.05, 0.07 | 0.80 |
 High vs. Low | 0.03 | −0.03, 0.08 | 0.40 |
Income Adequacy | −0.02 | −0.04, 0.00 | 0.12 |
Body Mass Index | |||
  < 18.5 vs. 18.5–24.9 | −0.19 | −0.34, − 0.04 | *0.01 |
 25.0–29.9 vs. < 18.5 | 0.18 | 0.03, 0.34 | *0.02 |
  ≥ 30.0 vs < 18.5 | 0.21 | 0.05, 0.36 | *0.008 |
 Missing vs. 18.5–24.9 | −0.32 | − 0.41, − 0.23 | * < .001 |
 Missing vs. 25.0–29.9 | −0.33 | 0.42, − 0.24 | * < .001 |
 Missing vs. ≥30.0 | −0.31 | −0.41, − 0.21 | * < .001 |
Food Shopping Role | |||
 Primary shopper vs. Not primary shopper | 0.00 | −0.12, 0.11 | 0.93 |
 Primary shopper vs. Share equally with others | −0.06 | −0.12, 0.00 | 0.05 |
 Share equally with others vs. Not primary shopper | 0.06 | −0.06, 0.18 | 0.36 |
Dietary Practices | |||
 One or more dietary practices (i.e., vegetarian, vegan, pescatarian, religious practices) vs. No specific dietary practices | −0.31 | −0.39, − 0.23 | * < .001 |
Dietary Efforts Score | −0.13 | − 0.14, − 0.11 | * < .001 |
Health Literacy | |||
 Possibility of limited literacy (score 2–3) vs. High likelihood of limited literacy (0–1) | 0.76 | 0.68, 0.84 | * < .001 |
 Adequate literacy (score 4–6) vs. Possibility of limited literacy (score 2–3) | 0.52 | 0.46, 0.58 | * < .001 |
 Adequate literacy (score 4–6) vs. High likelihood of limited literacy (0–1) | 1.28 | 1.21, 1.35 | * < .001 |
Self-reported Nutrition Knowledge | |||
 A little knowledgeable vs. Not at all knowledgeable | 0.65 | 0.52, 0.79 | * < .001 |
 A little knowledgeable vs. Somewhat knowledgeable | −0.09 | −0.15, − 0.34 | *0.002 |
 A little knowledgeable vs. Very knowledgeable | −0.16 | −0.23, − 0.08 | * < .001 |
 A little knowledgeable vs. Extremely knowledgeable | 0.50 | 0.34, 0.66 | * < .001 |
 Somewhat knowledgeable vs. Not at all knowledgeable | 0.75 | 0.61, 0.88 | * < .001 |
 Very knowledgeable vs. Not at all knowledgeable | 0.81 | 0.67, 0.96 | * < .001 |
 Extremely knowledgeable vs. Somewhat knowledgeable | −0.59 | −0.75, −0.44 | * < .001 |
 Extremely knowledgeable vs. Very knowledgeable | −0.66 | −0.82, − 0.50 | * < .001 |