Influence of Urban and Rural Areas, Type of School, and Parents’ Education Level on Nutrition Habits and Their Relationship with Dental Caries in Schoolchildren in Mallorca
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Design and Target Population
2.2. Study Variables
- Age;
- Type of school: public or subsidized/private;
- Geographic location: urban or rural;
- Education level of parents/guardians: includes the educational level of both the mother and father, categorized as elementary, secondary, or higher education.
- Frequency of food consumption: the number of times consumed per month;
- Nutrition-related attitudes and practices: an assessment of the number of meals per day, where they were eaten, and the purchase of snacks.
- Experience of caries is determined through the DMFT index in permanent teeth, where D=decayed teeth, M=missing teeth due to caries, and F=filled teeth corresponding to the unit being assessed. The analysis of caries experience uses the total sample (for children aged 5–6 years, among those who had mixed dentition, only permanent teeth were considered).
2.3. Ethical Treatment of the Data
2.4. Statistical Analysis
3. Results
3.1. Sample Description
3.2. Nutrition Habits
3.2.1. Frequency of Food Consumption
3.2.2. Meals During the Day
3.2.3. Parents/Guardians’ Education Levels
3.3. Effect of Nutrition Habits on the Experience of Caries in Schoolchildren
3.3.1. Consumption of Sugary Foods
3.3.2. Meals During the Day
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Abbreviations
WHO | World Health Organization |
FAO | Food and Agriculture Organization of the United Nations |
EFSA | European Food Safety Authority |
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First Stratum | Second Stratum | Third Stratum |
---|---|---|
Population Nuclei: | School Types: | Age Groups: |
|
|
|
First-Year Elementary (5–6 Years Old) n = 255 | Sixth-Year Elementary (12 Years Old) n = 230 | Fourth-Year Secondary (15 Years Old) n = 233 | Total | ||||||
---|---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | n | % | ||
Sex | Male | 144 | 56.47 | 125 | 54.35 | 112 | 48.06 | 381 | 53.06 |
Female | 111 | 43.53 | 105 | 46.65 | 121 | 51.93 | 337 | 46.94 | |
School type | Public | 177 | 69.4 | 159 | 69.1 | 190 | 81.5 | 526 | 73.3 |
Subsidized/private | 78 | 30.6 | 71 | 30.9 | 43 | 18.5 | 192 | 26.7 | |
Geographic location | Urban | 163 | 63.9 | 140 | 60.9 | 101 | 43.3 | 404 | 56.3 |
Rural | 92 | 36.1 | 90 | 39.1 | 132 | 56.7 | 314 | 43.7 |
Geographic Location | n | Mean | SD | CI 95% | p-Value | School Type | n | Mean | SD | CI 95% | p-Value | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pastries | Rural | 85 | 27.62 | 21.94 | (22.96–32.29) | 0.013 * | Public | 169 | 23.88 | 21.73 | (20.61–27.16) | 0.307 |
Urban | 160 | 20.45 | 20.93 | (17.20–23.69) | Subs./priv. | 76 | 20.84 | 21.02 | (16.12–25.57) | |||
Unknown | 10 | 10 | ||||||||||
Potato chips | Rural | 85 | 19.84 | 15.82 | (16.47–23.20) | 0.192 | Public | 169 | 18.82 | 15.91 | (16.42–21.21) | 0.243 |
Urban | 160 | 17.06 | 15.79 | (14.62–19.51) | Subs./priv. | 76 | 16.26 | 15.59 | (12.76–19.77) | |||
Unknown | 10 | 10 | ||||||||||
Sausages | Rural | 81 | 30.54 | 23.34 | (25.46–35.63) | <0.001 * | Public | 162 | 24.79 | 22.77 | (21.28–28.30) | 0.071 |
Urban | 155 | 19.12 | 20.39 | (15.90–22.32) | Subs./priv. | 74 | 19.19 | 20.11 | (14.61–23.77) | |||
Unknown | 19 | 19 | ||||||||||
Sugar | Rural | 82 | 22.34 | 22.71 | (17.43–27.26) | 0.699 | Public | 160 | 24.23 | 23.94 | (20.52–27.94) | 0.290 |
Urban | 149 | 23.58 | 23.65 | (19.79–27.38) | Subs./priv. | 71 | 20.70 | 21.69 | (15.66–25.75) | |||
Unknown | 24 | 24 | ||||||||||
Sugary soft drinks | Rural | 86 | 41.58 | 22.73 | (36.78–46.38) | <0.001 * | Public | 168 | 36.48 | 24.58 | (32.76–40.19) | 0.002 |
Urban | 156 | 28.56 | 25.25 | (24.60–32.53) | Subs./priv. | 74 | 25.73 | 24.90 | (20.06–31.40) | |||
Unknown | 13 | 13 | ||||||||||
Commercial juices | Rural | 87 | 24.07 | 23.52 | (19.13–29.01) | 0.005 * | Public | 167 | 20.10 | 21.46 | (16.84–23.35) | 0.268 |
Urban | 152 | 16.30 | 18.00 | (13.44–19.16) | Subs./priv. | 72 | 16.89 | 17.95 | (22.74–31.04) | |||
Unknown | 16 | 16 | ||||||||||
Sweets | Rural | 85 | 24.66 | 20.52 | (20.30–29.02) | 0.044 * | Public | 168 | 22.68 | 20.82 | (19.53–25.83) | 0.076 |
Urban | 157 | 19.29 | 19.30 | (16.27–22.30) | Subs./priv. | 74 | 17.76 | 17.124 | (14.54–20.97) | |||
Unknown | 13 | 13 | ||||||||||
Fruits | Rural | 85 | 9.88 | 15.80 | (6.52–13.24) | 0.004 * | Public | 167 | 13.21 | 18.14 | (10.45–15.96) | 0.158 |
Urban | 157 | 16.68 | 18.32 | (13.81–19.54 | Subs./priv. | 75 | 16.69 | 16.72 | (12.91–20.48) | |||
Unknown | 13 | 13 | ||||||||||
Vegetables | Rural | 86 | 14.41 | 18.30 | (10.55–18.29) | 0.176 | Public | 167 | 16.40 | 18.97 | (13.52–19.27) | 0.799 |
Urban | 157 | 17.80 | 18.68 | (14.87–20.72) | Subs./priv. | 76 | 17.05 | 17.81 | (13.05–21.06 | |||
Unknown | 13 | 12 |
Geographic Location | n | Mean | SD | CI 95% | p-Value | Type of School | n | Mean | SD | CI 95% | p-Value | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pastries | Rural | 88 | 29.32 | 20.21 | (25.10–33.54) | 0.008 * | Public | 157 | 22.56 | 19.13 | (19.57–25.55) | 0.017 |
Urban | 136 | 21.76 | 20.98 | (18.24–25.29) | Subs./priv. | 67 | 29.82 | 24.13 | (24.04–35.60) | |||
Unknown | 6 | 6 | ||||||||||
Potato chips | Rural | 88 | 26.48 | 16.52 | (23.03–29.93) | <0.001 * | Public | 156 | 21.90 | 15.96 | (19.39–24.40) | 0.985 |
Urban | 136 | 18.91 | 16.23 | (16.18–21.64) | Subs./priv. | 68 | 21.85 | 18.48 | (17.46–26.24) | |||
Unknown | 6 | 6 | ||||||||||
Sausages | Rural | 86 | 25.05 | 21.72 | (20.46–29.64) | 0.236 | Public | 155 | 22.66 | 20.54 | (19.42–25.89) | 0.740 |
Urban | 136 | 21.65 | 20.16 | (18.26–25.04) | Subs./priv. | 67 | 23.67 | 21.50 | (18.52–28.82) | |||
Unknown | 8 | 8 | ||||||||||
Sugar | Rural | 86 | 19.93 | 20.01 | (15.70–24.16) | 0.688 | Public | 154 | 19.74 | 20.13 | (16.56–22.92) | 0.329 |
Urban | 133 | 21.10 | 21.58 | (17.43–24.77) | Subs./priv. | 65 | 22.77 | 22.76 | (17.24–28.30) | |||
Unknown | 8 | 11 | ||||||||||
Sugary soft drinks | Rural | 88 | 32.43 | 20.72 | (28.10–36.76) | <0.001 * | Public | 155 | 25.69 | 22.03 | (22.22–29.16) | 0.743 |
Urban | 134 | 21.79 | 21.72 | (18.11–25.47) | Subs./priv. | 67 | 26.74 | 21.77 | (21.53–31.96) | |||
Unknown | 8 | 8 | ||||||||||
Commercial juices | Rural | 84 | 24.67 | 21.40 | (20.09–29.24) | 0.443 | Public | 150 | 22.16 | 22.28 | (18.60–25.73) | 0.336 |
Urban | 134 | 22.22 | 23.72 | (18.21–26.24) | Subs./priv. | 68 | 25.38 | 24.05 | (19.67–31.10) | |||
Unknown | 8 | 12 | ||||||||||
Sweets | Rural | 87 | 24.48 | 15.24 | (21.28–27.69) | 0.024 * | Public | 155 | 20.67 | 15.91 | (18.17–23.18) | 0.426 |
Urban | 136 | 19.22 | 17.84 | (16.22–22.22) | Subs./priv. | 68 | 22.65 | 19.42 | (18.03–27.26) | |||
Unknown | 7 | 7 | ||||||||||
Fruits | Rural | 87 | 9.95 | 12.99 | (7.23–12.68) | 0.120 | Public | 156 | 12.71 | 15.73 | (10.24–15.17) | 0.269 |
Urban | 137 | 13.23 | 16.59 | (10.45–16.00) | Subs./priv. | 68 | 10.24 | 14.37 | (6.82–13.65) | |||
Unknown | 6 | 7 | ||||||||||
Vegetables | Rural | 87 | 16.18 | 17.67 | (12.47–19.90) | 0.485 | Public | 152 | 14.61 | 16.26 | (12.02–17.19) | 0.413 |
Urban | 133 | 14.59 | 15.81 | (11.90–17.27) | Subs./priv. | 68 | 16.59 | 17.22 | (12.50–20.68) | |||
Unknown | 10 | 10 |
Geographic Location | n | Mean | SD | CI 95% | p-Value | School Type | n | Mean | SD | CI 95% | p-Value | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pastries | Rural | 130 | 22.54 | 19.13 | (19.25–25.83) | 0.854 | Public | 188 | 23.30 | 18.79 | (20.61–25.98) | 0.335 |
Urban | 101 | 22.99 | 17.71 | (19.54–26.45) | Subs./priv. | 43 | 20.28 | 17.12 | (15.16–25.40) | |||
Unknown | 2 | 2 | ||||||||||
Potato chips | Rural | 131 | 28.18 | 18.28 | (25.05–31.31) | 0.005 * | Public | 189 | 26.95 | 17.77 | (24.42–29.49) | 0.004 * |
Urban | 100 | 21.70 | 15.78 | (18.61–24.79) | Subs./priv. | 42 | 18.29 | 14.43 | (13.92–22.65) | |||
Unknown | 2 | 2 | ||||||||||
Sausages | Rural | 130 | 26.34 | 21.77 | (22.60–30.08) | 0.011 * | Public | 188 | 25.55 | 21.67 | (22.46–28.65) | <0.001 * |
Urban | 101 | 19.21 | 19.84 | (15.34–23.078) | Subs./priv. | 43 | 13.02 | 15.51 | (8.39–17.66) | |||
Unknown | 2 | 2 | ||||||||||
Sugar | Rural | 129 | 17.47 | 19.13 | (14.17–20.77) | 0.637 | Public | 186 | 17.63 | 18.96 | (14.91–20.36) | 0.247 |
Urban | 98 | 16.31 | 17.46 | (12.85–19.76) | Subs./priv. | 41 | 13.95 | 15.45 | (9.22–18.68) | |||
Unknown | 6 | 6 | ||||||||||
Sugary soft drinks | Rural | 130 | 29.80 | 22.35 | (25.96–33.64) | 0.236 | Public | 187 | 29.51 | 22.46 | (26.29–32.73) | 0.077 |
Urban | 99 | 26.26 | 22.31 | (21.87–30.66) | Subs./priv. | 42 | 22.76 | 21.28 | (16.33–29.20) | |||
Unknown | 4 | 4 | ||||||||||
Commercial juices | Rural | 128 | 29.92 | 21.31 | (26.23–33.61) | 0.179 | Public | 185 | 29.54 | 22.08 | (26.35–32.72) | 0.049 * |
Urban | 97 | 25.86 | 23.77 | (21.13–30.59) | Subs./priv. | 40 | 21.85 | 23.31 | (14.63–29.07) | |||
Unknown | 8 | 5 | ||||||||||
Sweets | Rural | 129 | 26.16 | 19.51 | (22.79–29.52) | 0.460 | Public | 186 | 26.18 | 19.13 | (23.43–28.93) | 0.153 |
Urban | 97 | 24.23 | 19.22 | (20.40–28.05) | Subs./priv. | 40 | 21.35 | 20.20 | (15.09–27.61) | |||
Unknown | 9 | 7 | ||||||||||
Fruits | Rural | 130 | 9.80 | 13.32 | (7.51–12.09) | 0.242 | Public | 187 | 10.11 | 13.22 | (8.21–12.00) | 0.146 |
Urban | 99 | 11.98 | 14.71 | (9.08–14.88) | Subs./priv. | 42 | 13.57 | 16.72 | (8.52–18.63) | |||
Unknown | 4 | 4 | ||||||||||
Vegetables | Rural | 130 | 14.00 | 16.26 | (11.20–16.80) | 0.840 | Public | 188 | 13.87 | 16.26 | (11.55–16.20) | 0.912 |
Urban | 101 | 13.58 | 14.50 | (10.76–16.41) | Subs./priv. | 43 | 13.58 | 11.63 | (10.11–17.06) | |||
Unknown | 2 | 2 |
Breakfast | Place | ||||||
---|---|---|---|---|---|---|---|
5–6 Years | Yes | No | p-Value (Chi-Square) | Home | School | Other | p-Value (Chi-Square) |
Rural | 79 (94%) | 5 (6%) | 0.434 | 74 (93.7%) | 3 (3.8%) | 1 (1.3%) | 0.043 * |
Urban | 154 (95.1%) | 6 (3.7%) | 152 (99.3%) | 0 | 1 (0.7%) | ||
Unknown | 11 | 24 | |||||
Public | 159 (95%) | 7 (5%) | 0.590 | 154 (96.3%) | 3 (1.9%) | 3 (1.9%) | 0.428 |
Subs./priv. | 74 (95%) | 4 (5%) | 72 (100%) | 0 | 0 | ||
Unknown | 11 | 23 | |||||
12 years | |||||||
Rural | 76 (90.5%) | 8 (9.5%) | 0.145 | 74 (97.4%) | 1 (1.3%) | 1 (1.3%) | 0.826 |
Urban | 132 (95.7%) | 5 (3.6%) | 130 (97%) | 1 (0.7%) | 3 (2.2%) | ||
Unknown | 9 | 20 | |||||
Public | 144 (94.7%) | 7 (4.6%) | 0.406 | 141 (97.2%) | 1 (0.7%) | 3 (2.1%) | 0.816 |
Subs./priv. | 64 (91.4%) | 6 (8.6%) | 63 (96.9%) | 1 (1.5%) | 1 (1.5%) | ||
Unknown | 9 | 20 | |||||
15 years | |||||||
Rural | 109 (83.8%) | 19 (14.6%) | 0.453 | 104 (96.3%) | 3 (2.8%) | 1 (0.9%) | 0.147 |
Urban | 86 (86%) | 14 (14%) | 79 (91.9%) | 3 (2.3%) | 5 (5.8%) | ||
Unknown | 5 | 38 | |||||
Public | 154 (82.4%) | 31 (16.6%) | 0.099 | 144 (94.1%) | 4 (2.6%) | 5 (3.3%) | 0.961 |
Subs./priv. | 41 (95.3%) | 2 (4.7%) | 39 (95.1%) | 1 (2.4%) | 1 (2.4%) | ||
Unknown | 5 | 39 |
Lunch | Place | ||||||
---|---|---|---|---|---|---|---|
5–6 Years | Yes | No | p-Value (Chi-Square) | Home | School | Other | p-Value (Chi-Square) |
Rural | 73 (90.1%) | 4 (4.9%) | 0.533 | 73 (90.1%) | 2 (2.5%) | 6 (7.4%) | 0.037 * |
Urban | 139 (90.3%) | 4 (2.6%) | 114 (77.6%) | 16 (10.9%) | 17 (11.6%) | ||
Unknown | 35 | 27 | |||||
Public | 148 (96.1%) | 6 (3.9%) | 0.383 | 134 (85.9%) | 8 (5.1%) | 14 (9%) | 0.043 * |
Subs./priv. | 64 (96.9%) | 2 (3.1%) | 53 (73.6%) | 10 (13.9%) | 9 (12.5%) | ||
Unknown | 35 | 27 | |||||
12 years | |||||||
Rural | 69 (86.3%) | 7 (8.8%) | 0.010 * | 62 (78.5%) | 8 (10.1%) | 9 (11.4%) | 0.932 |
Urban | 132 (97.1%) | 2 (1.5%) | 105 (78.4%) | 12 (9%) | 17 (12.7%) | ||
Unknown | 20 | 17 | |||||
Public | 138 (93.9%) | 5 (3.4%) | 0.710 | 119 (81.5%) | 9 (6.2%) | 18 (12.3%) | 0.057 |
Subs./priv. | 63 (91.3%) | 4 (5.8%) | 48 (71.6%) | 11 (16.4%) | 8 (11.9%) | ||
Unknown | 20 | 17 | |||||
15 years | |||||||
Rural | 114 (91.2%) | 7 (5.6%) | 0.201 | 88 (74.6%) | 6 (5.1%) | 24 (20.3%) | 0.127 |
Urban | 97 (97%) | 2 (2%) | 73 (75.3%) | 11 (11.3%) | 13 (13.4%) | ||
Unknown | 13 | 18 | |||||
Public | 173 (95.1%) | 5 (2.7%) | 0.142 | 126 (71.6%) | 15 (8.5%) | 35 (19.9%) | 0.052 |
Subs./priv. | 38 (88.4%) | 4 (9.3%) | 35 (89.7%) | 2 (5.1%) | 2 (5.1%) | ||
Unknown | 13 | 18 |
Dinner | Place | |||||
---|---|---|---|---|---|---|
5–6 Years | Yes | No | p-Value (Chi-Square) | Home | Other | p-Value (Chi-Square) |
Rural | 74 (90.2%) | 4 (4.9%) | 0.566 | 72 (94.7%) | 4 (5.3%) | 0.086 |
Urban | 149 (93.7%) | 4 (2.5%) | 146 (98.6%) | 2 (1.4%) | ||
Unknown | 24 | 31 | ||||
Public | 152 (92.1%) | 7 (4.2%) | 0.430 | 148 (96.7%) | 5 (3.3%) | 0.423 |
Subs./priv. | 71 (93.4%) | 1 (1.3%) | 70 (98.6%) | 1 (1.4%) | ||
Unknown | 24 | 31 | ||||
12 years | ||||||
Rural | 79 (98.8%) | 1 (1.3%) | 0.392 | 79 (100%) | 0 | 0.115 |
Urban | 129 (95.6%) | 4 (3%) | 126 (96.9%) | 4 (3.1%) | ||
Unknown | 17 | 21 | ||||
Public | 142 (96.6%) | 4 (2.7%) | 0.731 | 141 (91.3%) | 1 (1.7%) | 0.063 |
Subs./priv. | 66 (97.1%) | 1 (1.5%) | 64 (95.5%) | 3 (4.5%) | ||
Unknown | 17 | 21 | ||||
15 years | ||||||
Rural | 120 (93%) | 9 (7%) | 0.180 | 115 (98.3%) | 2 (1.7%) | 0.674 |
Urban | 97 (97%) | 3 (3%) | 96 (99%) | 1 (1%) | ||
Unknown | 4 | 19 | ||||
Public | 176 (94.6%) | 10 (5.4%) | 0.847 | 172 (98.9%) | 2 (1.1%) | 0.512 |
Subs./priv. | 41 (95.3%) | 2 (4.7%) | 39 (97.5%) | 1 (2.5%) | ||
Unknown | 4 | 19 |
OR | CI (95%) | p-Value | |
---|---|---|---|
Sweets | 1.757 | 1.07–2.98 | 0.035 * |
Commercial juices | 1.316 | 0.87–2.08 | 0.197 |
Pastries | 1.095 | 0.69–1.73 | 0.699 |
Sugary soft drinks | 1.039 | 0.67–1.62 | 0.867 |
Potato chips | 1.374 | 0.79–2.38 | 0.256 |
Sausages | 1.185 | 0.75–1.88 | 0.472 |
Sugar | 0.890 | 0.61–1.30 | 0.545 |
Fruit | 0.857 | 0.61–1.21 | 0.383 |
Vegetables | 1.001 | 0.67–1.50 | 0.997 |
Experience of Caries | Yes | No | p-Value (Chi-Square) | Home | School | Other | p-Value (Chi-Square) |
Breakfast | |||||||
No experience of caries | 479 (93.6%) | 33 (6.4%) | 0.004 * | 463 (96.9%) | 6 (1.3%) | 8 (1.3%) | 0.558 |
Experience of caries | 157 (86.7%) | 24 (13.3%) | 150 (94.9%) | 4 (2.5%) | 0 | ||
Unknown | 25 | 87 | |||||
Lunch | |||||||
No experience of caries | 452 (96%) | 19 (4%) | 0.943 | 383 (79.5%) | 46 (9.5%) | 53 (11%) | 0.009 * |
Experience of caries | 172 (96.1%) | 7 (3.9%) | 132 (75.9%) | 9 (5.2%) | 33 (19%) | ||
Unknown | 68 | 62 | |||||
Dinner | |||||||
No experience of caries | 480 (97.6%) | 12 (2.4%) | 0.004 * | 472 (98.3%) | - | 8 (1.7%) | 0.292 |
Experience of caries | 168 (92.8%) | 13 (7.2%) | 162 (97%) | - | 5 (3%) | ||
Unknown | 45 | 71 |
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Vallejos, D.; Coll, I.; López-Safont, N. Influence of Urban and Rural Areas, Type of School, and Parents’ Education Level on Nutrition Habits and Their Relationship with Dental Caries in Schoolchildren in Mallorca. Children 2025, 12, 383. https://doi.org/10.3390/children12030383
Vallejos D, Coll I, López-Safont N. Influence of Urban and Rural Areas, Type of School, and Parents’ Education Level on Nutrition Habits and Their Relationship with Dental Caries in Schoolchildren in Mallorca. Children. 2025; 12(3):383. https://doi.org/10.3390/children12030383
Chicago/Turabian StyleVallejos, Daniela, Irene Coll, and Nora López-Safont. 2025. "Influence of Urban and Rural Areas, Type of School, and Parents’ Education Level on Nutrition Habits and Their Relationship with Dental Caries in Schoolchildren in Mallorca" Children 12, no. 3: 383. https://doi.org/10.3390/children12030383
APA StyleVallejos, D., Coll, I., & López-Safont, N. (2025). Influence of Urban and Rural Areas, Type of School, and Parents’ Education Level on Nutrition Habits and Their Relationship with Dental Caries in Schoolchildren in Mallorca. Children, 12(3), 383. https://doi.org/10.3390/children12030383