Table 5

Significance of the factors Toy, TV, advertising and their interactions after adjustment for several potential confounding factors
TOY Filmspot TOY: Filmspot
bg P-value bTVNs bTVLs bTVMs bTVHs P-value BTVNs:T bTVLs:T bTVMs:T bTVHs:T P-value
Base 53.92 (28.93) 0.285 −11.19 (28.93) 18.08 (28.93) 6.46 (28.93) −0.74 (28.93) 0.665 −38.03 (40.92) −78.37 (40.92) −55.22 (40.92) −28.67 (40.92) 0.393
Base + M1 54.30 (28.29) 0.482 −0.73 (28.32) 24.05 (28.79) 10.00 (27.93) −10.29 (28.24) 0.694 −51.16 (40.29)
    87.80
(40.79)
−73.77 (40.46) −17..12 (40.09) 0.159
Base + M1 + M2 17.56 (39.07) 0.799 −36.47 (37.79) −20.97 (39.91) −1.26 (36.52) −35.87 (38.30) 0.340 −25.68 (53.42) −41.31 (59.13) −44.22 (54.65) 42.55 (54.48) 0.486
Base + M1 + M2 + BA 17.48 (39.19) 0.497 −37.16 (37.92) −20.99 (39.97) −1.45 (36.58) −36.17 (38.37) 0.342 24.49 (53.65) −40.91 (59.24) −43.91 (54.74) 42.43 (54.57) 0.497
Base + M1 + M2 + BA + M3 14.99 (38.99) 0.456 −40.26 (37.87) −16.37 (39.89) −5.55 (36.63) −37.20 (38.29) 0.339 −23.34 (53.52) −48.51 (59.12) −44.89 (54.57) 44.70 (54.38) 0.428
Base + M1 + M2 + BA + M3 + M4 5.51 (39.81) 0.460 −43.57 (39.28) −14.29 (40.77) −14.05 (37.46) −42.52 (40.29) 0.346 −13.68 (54.87) −39.93 (60.39) −33.77 (55.68) 47.78 (56.61) 0.932

Models have been selected using the AIC criterion (p-value for staying in the model 0.25). The final model used 7 degrees of freedom for the design variables plus 30 degrees of freedom for the selected additional variables. Cells are p-values related to the variables indicated in the columns and are underlined when significant.

Base: Blocking + TOY + filmspot + TOY: filmspots.

M1: BMI + breast feed + hours/week TV + physical activity (hours/week).

M2: BMI father + BMI mother + number brothers + numbers of sisters.

BA: IBAI - Score.

M3: Number of rooms in the house + number of TV in the house + educational level of the mother.

M4: breakfast in the morning + fruit portions/day + vegetables portions/day.

Gregori et al.

Gregori et al. Nutrition Journal 2013 12:95   doi:10.1186/1475-2891-12-95

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