In total, 295 children were eligible to participate in the study. However, 23 of the caregivers did not answer the questionnaire. Thus, our sample consisted of 272 children, with a mean age of 7.9 ± 2.0 years, with 147 (54%) girls. Regarding skin color, 203 individuals (76%) reported to be white, 26 individuals indicated to be (10%) black, and 39 (14%) indicated another skin color. The median monthly household income was US$800 (IQR25-75 400–2000). The total mean FHBS score was 72.3 (SD = 12.6). According to BMI percentiles, most of the children were classified as having a healthy weight, 143 children (55%) were classified as having a healthy body fat percentage and 68 children (25%) had an excessively high percentage of body fat. Regarding physical activity, 156 children (57%) were considered inactive (Table 1). Table 1 also presents the characteristics of the participants included in the validation studies carried out in the United States and Spain.
Content validity
Regarding content validity, our study indicated that CVI values were adequate (0.98). Analyzing each item on the scale separately, the twenty professionals indicated that they totally agreed with the clarity of language, 15/20 (75%); the practical relevance, 16/20 (80%); the theoretical relevance, 19/20 (95%); and the theoretical dimension, 17/20 (85%).
Construct validity
For the CFA, results for the verification of the theoretical factorial structure (four factors) were: Χ2: p < 0.0001, RMSEA = 0.084 (90% CI 0.077 to 0.091), SRMR = 0.101, GFI = 0.781, NFI = 0.591, CFI = 0.696, TLI = 0.664, and IFI = 0.702. According to the RMSEA (0.084, 95% CI 0.075 to 0.092) and SRMR (0.100) adjustment indexes, the factorial structure had a marginally acceptable fit in the present study.
The exploratory factor analysis with seven items showed a good fit of the sample to a latent factorial structure according to the resulting value for the Kaiser measure (KMO = 0.788). The items that we did not consider appropriate for factorial load, or that had a similar factorial load on multiple factors were moved to a factor that made most theoretical and clinical sense. The factorial loadings of the latent factor structure are shown in Table 2.
Table 2
Exploratory Factor analysis with ProMax rotation factor loading for the FHBS.
Items
|
|
|
|
Factors
|
|
|
|
|
I
|
II
|
III
|
IV
|
V
|
VI
|
VII
|
I. Parent Feeding Practices
|
|
|
|
|
|
|
|
4. My child is assisted with making health food choices
|
0.352
|
|
|
|
|
|
|
18. I make low calorie, low fat foods when cooking for my family.
|
0.802
|
|
|
|
|
|
|
19. I offer my child a healthy alternative when he/she asks for junk food
|
0.707
|
|
|
|
|
|
|
20. I eat low calorie, low fat foods.
|
0.694
|
|
|
|
|
|
|
21. I keep unhealthy food out of sight of my child.
|
0.269
|
|
|
|
|
|
|
22. I choose low calorie healthy options at fast food or at restaurants.
|
0.302
|
|
|
|
|
|
|
26. I teach my child about healthy food choices
|
0.647
|
|
|
|
|
|
|
II. Parental Modeling of Physical Activity
|
|
|
|
|
|
|
|
6. My child participates in physical activities with parents/caregivers.
|
|
0.84
|
|
|
|
|
|
24. I workout, exercise, or participate in physical activity
|
|
0.532
|
|
|
|
|
|
27. I participate in physical activity with my child.
|
|
0.803
|
|
|
|
|
|
III. Mealtime routines- at table
|
|
|
|
|
|
|
|
9. My child eats meals at the table.
|
|
|
0.704
|
|
|
|
|
12. My child eats meals at a routine time.
|
|
|
0.203
|
|
|
|
|
13. My child stays seated at the table.
|
|
|
0.781
|
|
|
|
|
IV. Child- Eating Patterns
|
|
|
|
|
|
|
|
1. My child eats breakfast daily.
|
|
|
|
0.427
|
|
|
|
5. My child eats frequently throughout the day.
|
|
|
|
-0.38
|
|
|
|
15. My child eats three meals a day.
|
|
|
|
0.620
|
|
|
|
16. My child eats when he/she feels sad, mad, or nervous.
|
|
|
|
0.223
|
|
|
|
V. Child Access to Food
|
|
|
|
|
|
|
|
7. My child frequently asks for unhealthy snacks.
|
|
|
|
|
0.499
|
|
|
10. My child is offered unhealthy foods by other family members.
|
|
|
|
|
0.599
|
|
|
14. My child sneaks food.
|
|
|
|
|
0.329
|
|
|
17. My child is influenced to eat unhealthy foods by other kids.
|
|
|
|
|
0.539
|
|
|
VI. Child Physical Activity Behaviors
|
|
|
|
|
|
|
|
2. My child participates in sports (swimming, football, gymnastics, dance, etc.)
|
|
|
|
|
|
0.452
|
|
3. My child prefers indoor activities over outdoor activities.
|
|
|
|
|
|
0.538
|
|
8. My child is physically active for at least 30 minutes daily.
|
|
|
|
|
|
0.433
|
|
11. My child plays outside.
|
|
|
|
|
|
0.589
|
|
VII. Fruit and Vegetable Parenting Practices
|
|
|
|
|
|
|
|
23. I eat vegetable.
|
|
|
|
|
|
|
0.437
|
25. I serve fresh fruits and vegetables.
|
|
|
|
|
|
|
0.557
|
Eigenvalue
|
5.66
|
1.66
|
1.28
|
0.89
|
0.74
|
0.66
|
0.55
|
Proportion
|
0.51
|
0.15
|
0.11
|
0.08
|
0.06
|
0.06
|
0.05
|
The factor structure suggested in the exploratory factorial analysis was composed of a seven-factor model, as described below. In accordance with the new factor structure which resulted in more nuanced factors, the subscales were renamed to better represent the latent constructs.
Parent Feeding Practices Factor (I): initially composed of nine of the following items: 2, 4, 12,18, 19, 20, 21, 22, 26. With item 2, “My child participates in sports (swimming, football, gymnastics, dance, etc.),” the factorial load was similar to that of factor 6. However, from the theoretical point of view, this item is considered to be more appropriate for inclusion in factor 6. Similarly, item 12, “My child eats meals at a routine time,” loaded similarly on factor I and III, but from a theoretical perspective, this item is however more appropriate for factor III.
Parental Modeling of Physical Activity Factor (II): initially composed of items 6, 24, and 27.
Mealtime Routines at the Table Factor (III): composed of items 9 and 13.
Child-Meal Patterns Factor (IV): composed of items 1, 5, 14, and 15. For item 14, “My child sneaks had food,” the factorial loading was equal to the loading on factor V and was more suitable for inclusion in factor 5 from the theoretical point of view.
Child Access to Food Factor (V): composed of items 7, 10, and 17.
Child Physical Activity Behaviors Factor (VI): composed of items 3, 8, and 11.
Fruit and Vegetable Parenting Practices Factor (VII): initially composed of items 16, 23, 25, and. Item 16, “My child eats when he feels bored, sad, angry or nervous,” had the second-highest load on factor IV, becoming more adequate on this factor according to the theoretical point of view. The final 7-factor structure yielded accounting for 100% of the explained variance (Table 2)
Concurrent validity
The comparison of means of the FHBS Total Score in relation to the BMI percentile categories revealed a significant difference for at least one of the three means (p = 0.01, F = 4.64, DF = 2, effect size (Partial Eta-Square) = 0.0417). The follow-up Tukey test identified that the mean Total Score of individuals that were classified as obese (67.0 ± 15.9 SD) had significantly lower FHBS scores than individuals who were in the healthy weight (73.6 ± 10.9 SD) and overweight categories (73.6 ± 12.4 SD).
The results of the comparison of the mean FHBS scores between fat percentage categories revealed a main effect of category (p = 0.02, F = 3.23, df = 3, effect size (Partial Eta-Square) = 0.0478). Follow-up Tukey tests revealed that children categorized as having normal percentage of body fat group had higher FHBS scores than children who were in the excessively high body fat percentage group (74.18 ± 11.4 SD vs. 68.3 ± 14.1 SD).
The mean total FHBS score of the group classified as physically active (75.2 ± 11.4 SD) was significantly higher than the mean total score of the group classified as inactive (70.7 ± 13.7 SD) (p = 0.003, F = 8.57, df = 1, effect size (Partial Eta-Square) = 0.0388)
Reliability
The Cronbach's alpha coefficients showed adequate internal consistency for the FHBS total scale (α = 0.80) and values per domain range from 0.45 for the domain Child Behaviors to 0.80 for the domain parents Behaviors (Table 3). Table 3 also presents Cronbach's alpha coefficients of US and Spain validation study.
However, the 7-factor structure, values per domain range from 0.008 for the domain child- eating patterns to 0.756 for the parent feeding practices domain.
When the item “My child eats frequently throughout the day” was excluded, the value of the Cronbach's alpha coefficients increased to α = 0.820. None of the domains showed > 25% floor and ceiling effects.
The best estimate of the Spearman-Brown coefficient was 0.8105 (0.09 SD).
Forty-eight caregivers (19%) completed the questionnaire for a second time two weeks after initial administration. The test-retest reliability intraclass correlation coefficient was 0.626 (95% CI: 0.406–0.777).
Table 3
Cronbach's alpha US, Spain and Brazil
Scale Domain US Spain Brazil
|
Parent Behaviors
|
0.85
|
0.76
|
0.80
|
Physical Activity
|
0.75
|
0.61
|
0.68
|
Mealtime Routines
|
0.77
|
0.45
|
0.64
|
Child Behaviors
|
0.74
|
0.68
|
0.45
|
Total
|
0.83
|
0.74
|
0.80
|
Figure 1 showed the Bland-Altman graph of agreement with the mean difference and the 95% agreement limits of the test and retest. The average bias was − 0.840, with the lower and upper limits of -22.76 to 21.07, respectively.