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Estudio de Observación del Futuro: Tendencias en la prevalencia del uso de varias drogas entre los estudiantes de 8º, 10º y 12º grado

2007-2010 (en porcentaje)*
Categoría 8º grado 10º grado 12º grado
2007 2008 2009 2010 2007 2008 2009 2010 2007 2008 2009 2010
Uso de cualquier droga ilícita 19.0 19.6 19.9 21.4 35.6 34.1 36.0 37.0 46.8 47.4 46.7 48.2
13.2 14.1 14.5 [16.0] 28.1 26.9 29.4 30.2 35.9 36.6 36.5 38.3
7.4 7.6 8.1 [9.5] 16.9 15.8 17.8 18.5 21.9 22.3 23.3 23.8
Marihuana/hachís 14.2 14.6 15.7 17.3 31.0 29.9 32.3 33.4 41.8 42.6 42.0 43.8
año anterior 10.3 10.9 11.8 [13.7] 24.6 23.9 26.7 27.5 31.7 32.4 32.8 34.8
Past Month 5.7 5.8 6.5 [8.0] 14.2 13.8 15.9 16.7 18.8 19.4 20.6 21.4
Uso diario 0.8 0.9 1.0 [1.2] 2.8 2.7 2.8 [3.3] 5.1 5.4 5.2 [6.1]
Inhalantes Lifetime 15.6 15.7 14.9 14.5 13.6 12.8 12.3 12.0 10.5 9.9 9.5 9.0
año anterior 8.3 8.9 8.1 8.1 6.6 5.9 6.1 5.7 3.7 3.8 3.4 3.6
mes anterior 3.9 4.1 3.8 3.6 2.5 2.1 [2.2] 2.0 1.2 1.4 1.2 1.4
Alucinógenos En la vida 3.1 3.3 3.0 3.4 6.4 5.5 6.1 6.1 8.4 8.7 7.4 8.6
año anterior 1.9 2.1 1.9 2.2 4.4 3.9 4.1 4.2 5.4 5.9 [4.7] 5.5
mes anterior 1.0 0.9 0.9 1.0 1.7 1.3 1.4 1.6 1.7 [2.2] [1.6] 1.9
LSD En la vida 1.6 1.9 1.7 1.8 3.0 2.6 3.0 3.0 3.4 4.0 3.1 4.0
año anterior 1.1 1.3 1.1 1.2 1.9 1.8 1.9 1.9 2.1 2.7 [1.9] [2.6]
mes anterior 0.5 0.5 0.5 0.6 0.7 0.7 0.5 0.7 0.6 [1.1] [0.5] [0.8]
Cocaína En la vida 3.1 3.0 2.6 2.6 5.3 4.5 4.6 3.7 7.8 7.2 [6.0] 5.5
año anterior 2.0 1.8 1.6 1.6 3.4 3.0 2.7 2.2 5.2 4.4 [3.4] 2.9
mes anterior 0.9 0.8 0.8 0.6 1.3 1.2 [0.9] 0.9 [2.0] 1.9 [1.3] 1.3
Cocaína crack En la vida 2.1 2.0 1.7 1.5 2.3 2.0 2.1 1.8 3.2 2.8 2.4 2.4
año anterior 1.3 1.1 1.1 1.0 1.3 1.3 1.2 1.0 1.9 [1.6] 1.3 1.4
mes anterior 0.6 0.5 0.5 0.4 [0.5] 0.5 0.4 0.5 0.9 0.8 0.6 0.7
Heroína En la vida 1.3 1.4 1.3 1.3 1.5 [1.2] [1.5] 1.3 1.5 1.3 1.2 1.6
año anterior 0.8 0.9 0.7 0.8 0.8 0.8 0.9 0.8 0.9 0.7 0.7 0.9
mes anterior 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Tranquilizantes En la vida 3.9 3.9 3.9 4.4 7.4 6.8 7.0 7.3 9.5 8.9 9.3 8.5
año anterior 2.4 2.4 2.6 2.8 5.3 4.6 5.0 5.1 6.2 6.2 6.3 5.6
mes anterior 1.1 1.2 1.2 1.2 2.6 [1.9] 2.0 2.2 2.6 2.6 2.7 2.5
Alcohol En la vida 38.9 38.9 [36.6] 35.8 61.7 [58.3] 59.1 58.2 72.2 71.9 72.3 71.0
año anterior 31.8 32.1 30.3 29.3 56.3 [52.5] 52.8 52.1 66.4 65.5 66.2 65.2
mes anterior 15.9 15.9 14.9 13.8 33.4 [28.8] 30.4 28.9 44.4 43.1 43.5 [41.2]
Uso diario 0.6 0.7 [0.5] 0.5 1.4 [1.0] 1.1 1.1 3.1 2.8 2.5 2.7
Cigarrillos (cualquier uso) En la vida 22.1 20.5 20.1 20.0 34.6 [31.7] 32.7 33.0 46.2 44.7 43.6 42.2
mes anterior 7.1 6.8 6.5 7.1 14.0 [12.3] 13.1 13.6 21.6 20.4 20.1 19.2
Uso diario 3.0 3.1 2.7 2.9 7.2 [5.9] 6.3 6.6 12.3 11.4 11.2 10.7
1/2 caj.+/día 1.1 1.2 1.0 0.9 2.7 [2.0] 2.4 2.4 5.7 5.4 5.0 4.7
Tabaco sin humo En la vida 9.1 9.8 9.6 9.9 15.1 [12.2] [15.2] 16.8 15.1 15.6 16.3 17.6
mes anterior 3.2 3.5 3.7 4.1 6.1 5.0 [6.5] 7.5 6.6 6.5 8.4 8.5
Uso diario 0.8 0.8 0.8 0.9 1.6 1.4 [1.9] 2.5 2.8 2.7 2.9 3.1
Esteroides En la vida 1.5 1.4 1.3 1.1 1.8 1.4 1.3 1.6 2.2 2.2 2.2 2.0
año anterior 0.8 0.9 0.8 [0.5] 1.1 0.9 0.8 1.0 1.4 1.5 1.5 1.5
mes anterior 0.4 0.5 0.4 0.3 0.5 0.5 0.5 0.5 1.0 1.0 1.0 1.1
MDMA En la vida 2.3 2.4 2.2 [3.3] 5.2 4.3 5.5 6.4 6.5 6.2 6.5 7.3
año anterior 1.5 1.7 1.3 [2.4] 3.5 2.9 3.7 [4.7] 4.5 4.3 4.3 4.5
mes anterior 0.6 0.8 0.6 [1.1] 1.2 1.1 1.3 [1.9] 1.6 1.8 1.8 1.4
Metanfetamina En la vida 1.8 2.3 [1.6] 1.8 2.8 2.4 2.8 2.5 [3.0] 2.8 2.4 2.3
año anterior 1.1 1.2 1.0 1.2 1.6 1.5 1.6 1.6 [1.7] 1.2 1.2 1.0
mes anterior 0.6 0.7 0.5 0.7 0.4 [0.7] 0.6 0.7 0.6 0.6 0.5 0.5
Vicodina año anterior 2.7 2.9 2.5 2.7 7.2 6.7 8.1 7.7 9.6 9.7 9.7 [8.0]
OxyContin año anterior 1.8 2.1 2.0 2.1 3.9 3.6 5.1 4.6 5.2 4.7 4.9 5.1
Medicamentos para la tos (sin prescripción) año anterior 4.0 3.6 3.8 3.2 5.4 5.3 6.0 5.1 5.8 5.5 5.9 6.6

* Las cifras entre corchetes indican los cambios que se consideran estadísticamente significativos con relación al estudio del año pasado.

Para datos adicionales, incluyendo los datos de las tendencias de los años anteriores, visite el sitio Web en inglés del Estudio de Observación del Futuro.

 

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Monitoring the Future Study: Trends in Prevalence of Various Drugs for 8th Graders, 10th Graders, and 12th Graders; 2014 - 2017 (in percent)*
Drug Time Period 8th Graders 10th Graders 12th Graders
2014 2015 2016 2017 2014 2015 2016 2017 2014 2015 2016 2017
Alcohol Lifetime 26.80 26.10 [22.80] 23.10 [49.30] 47.10 [43.40] 42.20 [66.00] 64.00 61.20 61.50
Past Year 20.80 21.00 [17.60] 18.20 [44.00] 41.90 [38.30] 37.70 60.20 58.20 55.60 55.70
Past Month 9.00 9.70 [7.30] 8.00 [23.50] 21.50 19.90 19.70 37.40 35.30 33.20 33.20
Daily 0.30 0.20 0.20 0.20 0.80 0.50 0.50 0.60 1.90 1.90 [1.30] 1.60
Cigarettes (any use) Lifetime 13.50 13.30 [9.80] 9.40 [22.60] [19.90] [17.50] 15.90 [34.40] [31.10] [28.30] 26.60
Past Month 4.00 [3.60] [2.60] [1.90] [7.20] [6.30] [4.90] 5.00 [13.60] [11.40] 10.50 9.70
Daily 1.40 1.30 [0.90] [0.60] [3.20] 3.00 [1.90] 2.20 [6.70] [5.50] 4.80 4.20
1/2-pack+/day 0.50 0.40 0.30 0.20 1.20 1.00 [0.60] 0.70 [2.60] 2.10 1.80 1.70
E-cigarettes Past Month 8.70 9.50 6.20 - 16.20 14.00 11.00 - 17.10 16.20 12.50 -
Any Vaping Lifetime - 21.70 17.50 18.50 - 32.80 29.00 30.90 - 35.50 33.80 35.80
Past Year - - - 13.30 - - - 23.90 - - - 27.80
Past Month - 8.00 6.20 6.60 - 14.20 11.00 13.10 - 16.30 12.50 16.60
Smokeless Tobacco Lifetime 8.00 8.60 6.90 6.20 13.60 12.30 10.20 9.10 15.10 13.20 14.20 [11.00]
Past Month 3.00 3.20 2.50 [1.70] 5.30 4.90 3.50 3.80 8.40 6.10 6.60 [4.90]
Daily 0.50 0.80 0.60 0.40 1.80 1.60 1.00 0.60 3.40 2.90 2.70 2.00
Illicit Drugs Lifetime 20.30 20.50 [17.20] 18.20 37.40 [34.70] 33.70 34.30 49.10 48.90 48.30 48.90
Past Year 14.60 14.80 [12.00] 12.90 29.90 27.90 26.80 27.80 38.70 38.60 38.30 39.90
Past Month 8.30 8.10 [6.90] 7.00 18.50 [16.50] 15.90 17.20 23.70 23.60 24.40 24.90
Bath Salts Past Year [0.50] 0.40 0.90 0.50 0.90 0.70 0.80 0.40 0.90 1.00 0.80 0.60
Cocaine Lifetime 1.80 1.60 1.40 1.30 2.60 2.70 2.10 2.10 4.60 4.00 3.70 4.20
Past Year 1.00 0.90 0.80 0.80 1.50 1.80 1.30 1.40 2.60 2.50 2.30 2.70
Past Month 0.50 0.50 0.30 0.40 0.60 0.80 0.40 0.50 1.00 1.10 0.90 1.20
Crack Cocaine Lifetime 1.20 1.00 0.90 0.80 [1.00] 1.10 0.80 0.80 1.80 1.70 1.40 1.70
Past Year 0.70 0.50 0.50 0.50 [0.50] 0.70 [0.40] 0.60 1.10 1.10 0.80 1.00
Past Month 0.30 0.30 0.20 0.30 0.30 0.30 0.20 0.30 0.70 0.60 0.50 0.60
GHB Past Year - - - - - - - - 1.00 0.70 0.90 0.40
Hallucinogens Lifetime 2.00 2.00 1.90 1.90 5.00 4.60 4.40 4.20 6.30 6.40 6.70 6.70
Past Year 1.30 1.30 1.20 1.10 3.30 3.10 2.90 2.80 4.00 4.20 4.30 4.40
Past Month 0.50 0.60 0.60 0.50 1.20 0.90 0.90 1.10 1.50 1.60 1.40 1.60
Heroin Lifetime 0.90 [0.50] 0.50 0.70 0.90 0.70 0.60 0.40 1.00 0.80 0.70 0.70
Past Year 0.50 [0.30] 0.30 0.30 0.50 0.50 0.30 0.20 0.60 0.50 0.30 0.40
Past Month 0.30 0.10 0.20 0.20 0.40 0.20 0.20 0.10 0.40 0.30 0.20 0.30
Inhalants Lifetime 10.80 [9.40] [7.70] [8.90] 8.70 [7.20] 6.60 6.10 6.50 5.70 5.00 4.90
Past Year 5.30 4.60 [3.80] [4.70] 3.30 2.90 2.40 2.30 1.90 1.90 1.70 1.50
Past Month 2.20 2.00 1.80 2.10 1.10 1.20 1.00 1.10 0.70 0.70 0.80 0.80
K2/Spice (Synthetic Marijuana) Past Year 3.30 3.10 2.70 [2.00] [5.40] 4.30 3.30 2.70 [5.80] 5.20 3.50 3.70
Ketamine Past Year - - - - - - - - 1.50 1.40 1.20 1.20
LSD Lifetime 1.10 1.30 1.20 1.30 2.60 3.00 3.20 3.00 3.70 4.30 4.90 5.00
Past Year 0.70 0.90 0.80 0.90 1.90 2.00 2.10 2.10 2.50 2.90 3.00 3.30
Past Month 0.30 0.40 0.40 0.30 0.60 0.60 0.70 0.80 1.00 1.10 1.00 1.20
Marijuana/ Hashish Lifetime 15.60 15.50 [12.80] 13.50 33.70 [31.10] 29.70 30.70 44.40 44.70 44.50 45.00
Past Year 11.70 11.80 [9.40] 10.10 [27.30] 25.40 23.90 25.50 35.10 34.90 35.60 37.10
Past Month 6.50 6.50 [5.40] 5.50 16.60 14.80 14.00 [15.70] 21.20 21.30 22.50 22.90
Daily 1.00 1.10 [0.70] 0.80 [3.40] 3.00 2.50 2.90 5.80 6.00 6.00 5.90
MDMA Lifetime 1.40 2.30 [1.70] 1.50 [3.70] [3.80] [2.80] 2.80 5.60 [5.90] [4.90] 4.90
Past Year 0.90 1.40 [1.00] 0.90 [2.30] [2.40] [1.80] 1.70 3.60 [3.60] [2.70] 2.60
Past Month 0.40 0.50 0.30 0.40 [0.80] 0.90 [0.50] 0.50 1.40 1.10 0.90 0.90
Methamphetamine Lifetime 1.00 0.80 0.60 0.70 1.40 1.30 [0.70] 0.90 1.90 1.00 1.20 1.10
Past Year 0.60 0.50 0.40 0.50 0.80 0.80 [0.40] 0.40 1.00 0.60 0.60 0.60
Past Month 0.20 0.30 0.30 0.20 0.30 0.30 0.20 0.20 0.50 0.40 0.30 0.30
PCP Lifetime - - - - - - - - - - - -
Past Year - - - - - - - - 0.80 1.40 1.30 1.00
Past Month - - - - - - - - - - - -
Rohypnol Lifetime 0.60 0.80 0.90 0.60 1.00 0.50 1.00 0.70 - - - -
Past Year 0.30 0.30 0.50 0.40 0.50 0.20 0.50 0.30 0.70 1.00 1.10 0.80
Past Month 0.20 0.10 0.20 0.10 0.40 0.10 0.30 0.00 - - - -
Salvia Past Year [0.60] 0.70 0.90 [0.40] 1.80 1.20 0.90 0.90 [1.80] 1.90 1.80 1.50
Any Prescription Drug Lifetime - - - - - - - - [19.90] 18.30 18.00 16.50
Past Year - - - - - - - - [13.90] 12.90 12.00 10.90
Past Month - - - - - - - - 6.40 5.90 5.40 4.90
Adderall Past Year 1.30 1.00 1.50 1.30 4.60 5.20 4.20 4.00 6.80 7.50 6.20 5.50
Amphetamine Lifetime 6.70 6.80 [5.70] 5.70 10.60 9.70 8.80 8.20 12.10 10.80 10.00 9.20
Past Year 4.30 4.10 3.50 3.50 7.60 6.80 6.10 5.60 8.10 7.70 6.70 5.90
Past Month 2.10 1.90 1.70 1.70 3.70 [3.10] 2.70 2.50 3.80 3.20 3.00 2.60
Cough Medicine (non-prescription) Past Year [2.00] 1.60 2.60 2.10 3.70 3.30 3.00 3.60 4.10 4.60 4.00 3.20
Narcotics other than Heroin Lifetime - - - - - - - - [9.50] [8.40] 7.80 6.80
Past Year - - - - - - - - [6.10] 5.40 4.80 4.20
Past Month - - - - - - - - [2.20] 2.10 1.70 1.60
OxyContin Past Year [1.00] 0.80 0.90 0.80 3.00 2.60 2.10 2.20 3.30 3.70 3.40 2.70
Ritalin Past Year 0.90 0.60 0.80 [0.40] 1.80 1.60 1.20 0.80 1.80 2.00 [1.20] 1.30
Steroids Lifetime 1.00 1.00 0.90 1.10 1.40 1.20 1.30 1.10 1.90 2.30 [1.60] 0.60
Past Year 0.60 0.50 0.50 0.60 0.80 0.70 0.70 0.70 1.50 1.70 [1.00] 1.10
Past Month 0.20 0.30 0.30 0.30 0.40 0.40 0.30 0.30 0.90 1.00 0.70 0.80
Tranquilizers Lifetime 2.90 3.00 3.00 3.40 5.80 5.80 6.10 6.00 7.40 6.90 7.60 7.50
Past Year 1.70 1.70 1.70 2.00 3.90 3.90 4.10 4.10 4.70 4.70 4.90 4.70
Past Month 0.80 0.80 0.80 0.70 1.60 1.70 1.50 1.50 2.10 2.00 1.90 2.00
Vicodin Past Year 1.00 0.90 0.80 0.70 3.40 2.50 1.70 1.50 4.80 4.40 [2.90] [2.00]

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Monitoring the Future Study: Trends in Prevalence of Various Drugs for 8th Graders, 10th Graders, and 12th Graders; 2013 (in percent)*
Drug Time Period 8th Graders 10th Graders 12th Graders
Cocaine Lifetime 1.70 3.30 4.50
Past Year 1.00 1.90 2.60
Past Month 0.50 0.80 1.10
Crack Cocaine Lifetime 1.20 1.50 1.80
Past Year 0.60 0.80 1.10
Past Month 0.30 0.40 0.60