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. 2019 Dec 27;14(12):e0227035. doi: 10.1371/journal.pone.0227035

Table 5. Multinomial logistic regression models.

Odds ratios and 95% confidence intervals for children's preference for somewhat salty/very salty foods.

Model 1 Model 2 Model 3
Predictor Variables Medium salt content Salty food Medium salt content Salty food Medium salt content Salty food
Questions Groups OR (CI 95%) p value OR (CI 95%) p value OR (CI 95%) p value OR (CI 95%) p value OR (CI 95%) p value OR (CI 95%) p value
In your home, do you add salt to the food while cooking?a Sometimes/Always 3.034 (0.928–9.923) 0.066 2.588 (0.519–12.913) 0.246 2.772 (0.833–9.219) 0.096 2.124 (0.408–11.053) 0.371 3.818 (0.981–14.863) 0.053 3.207 (0.390–26.359) 0.278
Do you add salt to food when you eat it after it is cooked? (Father)a Only if it is tasteless/ Always 2.777 (1.083–7.122) 0.034 3.818 (1.192–12.231) 0.024 2.697 (1.044–6.969) 0.041 3.330 (1.021–10.862) 0.046 2.341 (0.669–8.200) 0.183 1.639 (0.343–7.826) 0.536
Do you add salt to food when you eat it after it is cooked? (Mother)a Only if it is tasteless/ Always 2.205 (0.862–5.636) 0.099 2.8 (0.910–8.611) 0.072 2.234 (0.871–5.729) 0.094 3.054 (0.978–9.534) 0.055 1.129 (0.330–3.859) 0.847 1.141 (0.248–5.247) 0.865
In your home, do you routinely check food labels for salt content?a Sometimes/Always 0.473 (0.195–1.146) 0.097 0.305 (0.101–0.921) 0.035 0.453 (0.185–1.109) 0.083 0.280 (0.090–0.866) 0.027 0.665 (0.222–1.994) 0.466 0.293 (0.072–1.199) 0.088
In your home, is the salt shaker on your table for anyone who wants it?a Sometimes/Always 1.157 (0.145–9.237) 0.89 2.625 (0.274–25.140) 0.402 1.164 (0.145–9.354) 0.886 2.710 (0.274–26.795) 0.394 - c - c - c - c
How often your children add salt to the food after it is cooked?a Sometimes/Always 1.667 (0.374–7.434) 0.503 8.382 (1.669–42.103) 0.010 1.615 (0.361–7.232) 0.531 7.753 (1.523–39.473) 0.014 1.306 (0.153–11.152) 0.807 8.029 (0.824–78.283) 0.073
In your home, do you use iodized salt or regular salt?b Iodized salt 2.012 (0.767–5.281) 0.155 2.449 (0.771–7.778) 0.129 2.123 (0.798–5.646) 0.131 3.112 (0.949–10.197) 0.061 2.577 (0.802–8.277) 0.112 3.169 (0.760–13.218) 0.113

Dependent variable: children's preference for somewhat salty/very salty foods.

aThe reference is ‘never’.

bThe reference is ‘regular salt’.

cData was removed because it was statistically unreliable.

Model 1: not adjusted. Model 2: adjusted for age, BMI, and sex. Model 3: Model 2 plus the rest of the predictor variables (In your home, do you add salt to the food while cooking? Do you add salt to food when you eat it after it is cooked? (Father, mother); In your home, do you routinely check food labels for salt content? Does your child prefer not salty or very salty food? How often does your child add salt to the food after it is cooked? In your home, do you use iodized salt or regular salt?). Significant differences are bolded.