| PA | Physical activity |
| B.D. | Binge drinking |
| C.I. | Confidence Interval |
| N.S.I. | National Statistics Institute |
| ESPAD | European School Survey Project on Alcohol and Other Drugs |
| S.S.B.s | Sugar-sweetened beverages |
| SPSS | Statistical Package for Social Sciences |
| WHO | World Health Organization |
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