Table 7.

Evaluation of food and nutritional literacy according to some variables in school-age adolescents

Variables	Total	Factor 1	Factor 2	Factor 3
Total	42.6 ± 7.29	18.9 ± 5.1	2.8 ± 1.4	20.9 ± 3.7
Gender
Male	40.9 ± 7.1a	18.0 ± 5.2a	2.2 ± 1.3a	20.6 ± 3.6
Female	43.9 ± 7.1b	19.5 ± 5.0b	3.2 ± 1.3b	21.1 ± 3.7
Grade of the class
4–8	41.0 ± 7.5a	17.5 ± 5.4a	2.5 ± 1.3a	21.0 ± 3.7
9–12	44.9 ± 6.2b	20.9 ± 3.8b	3.2 ± 1.4b	20.7 ± 3.6
The place of residence
at home	42.8 ± 7.2a	19.1 ± 4.9a	2.8 ± 1.4	20.9 ± 3.7
in the dormitory	38.8 ± 7.3b	14.7 ± 7.4b	3.1 ± 1.5	20.9 ± 3.7
Only child
Yes	39.0 ± 8.4a	15.7 ± 6.2a	2.5 ± 1.2	20.7 ± 4.1
No	43.0 ± 7.1b	19.2 ± 4.8b	2.8 ± 1.4	20.9 ± 3.6
Income status of the family
Income more than expenses	44.3 ± 5.7	20.2 ± 3.5a	2.8 ± 1.5	21.3 ± 3.6
Income equal to expenses	42.9 ± 7.3	19.0 ± 5.2	2.8 ± 1.3	21.1 ± 3.7
Income less than expenses	40.1 ± 8.0	17.1 ± 5.9b	2.9 ± 1.3	20.1 ± 3.5
Mother's educational level
Low education	41.0 ± 7.5	17.6 ± 5.8	2.9 ± 1.5	20.5 ± 3.5
Medium education	42.5 ± 7.0	18.9 ± 4.5	2.7 ± 1.3	20.8 ± 3.7
High education	45.2 ± 6.6	20.7 ± 4.1	2.8 ± 1.4	21.6 ± 3.7
Father's educational level
Low education	40.5 ± 7.5a	17.0 ± 6.1	3.0 ± 1.4	20.4 ± 3.3
Medium education	42.0 ± 6.9b	19.0 ± 4.5	2.7 ± 1.4	20.3 ± 3.6
High education	44.9 ± 6.8c	20.2 ± 4.2	2.8 ± 1.4	21.8 ± 3.7
School nutrition education
Yes	43.3 ± 8.1	19.2 ± 5.5	2.6 ± 1.5	21.5 ± 3.5
No	42.5 ± 7.1	18.8 ± 5.1	2.8 ± 1.4	20.7 ± 3.6
Discussion nutrition information with families
Yes	44.8 ± 6.6a	20.4 ± 4.1a	2.8 ± 1.3	21.6 ± 3.7a
No	40.2 ± 7.2b	17.2 ± 5.6b	2.8 ± 1.5	20.2 ± 3.5b
BAZ classification
Thinness (< -1 SD)	40.6 ± 6.3	17.0 ± 4.9	2.8 ± 1.2	20.8 ± 3.2
Normal (≥ -1 + 1 SD)	44.5 ± 6.8a	20.2 ± 4.6a	2.9 ± 1.4	21.4 ± 3.5
Overweight (> 1 SD)	40.0 ± 6.9	17.1 ± 5.3	2.7 ± 1.4	20.1 ± 3.6
Obesity (> 2 SD)	37.7 ± 8.2b	15.9 ± 5.5b	2.6 ± 1.4	19.1 ± 4.3

a, b, c indicate significant differences among groups (p < 0.05)