The Belfast Youth Development Study: A longitudinal study of adolescence
The Sample Wave 1 3,834 Wave 1 3,834 Wave 2 4,343 Wave 2 4,343 Wave 3 4,522 Wave 3 4,522 Wave 4 3,965 Wave 4 3,965 Wave 5 3,830 Wave 5 3,830 Wave 6 2,335 Wave 6 2,335 Wave 7 2,087 Wave 7 2,087 School year: Age: Y 8 11/12 Y 9 12/13 Y 10 13/14 Y 11 14/15 Y 12 14/15 16/17 20/ / /2011
The Questionnaire The questionnaire Adolescent drug use Personal characteristics Family Peers, School and Neighbourhood e.g. Alcohol intoxication e.g. Problem drug use e.g. Mental health e.g. Personality traits e.g. Parental attachment e.g. Parental monitoring e.g. School friends e.g. Educational aspirations e.g. Neighbour- hood control
Weekly Cannabis Use (age 15): Adjusted Odds Ratios Predictors age 13OR95 % C.I. Quality ofBadReference Pupil-TeachersNeutral RelationshipsGood0.48** Been involved in aNoReference fight at schoolYes1.43* School-Related Predictors of Drug Use (Perra et al. 2012; J. of Adolescence) *p <.05; **p <.01
AUDIT scores (age 15) by adolescent drinking trajectory (age 12-15) and SES Drinking trajectoryLower SES N = 820 Middle SES N = 1000 Higher SES N = 1178 Non drinkers Late occasional drinking Persistent occasional drinking Occasional Moderate drinking Persistent moderate drinking Moderate Frequent drinking Persistent frequent drinking Alcohol and the affluence paradox
Path Analyses Fathers Alcohol Use Fig. 1 Path model showing the hypothesised relations between the observed variables Path coefficients reported ** p<0.01, *p<0.05 Mothers Alcohol Use Child alcohol use (15 yrs) Mothers Monitoring.06.19** -.26** -.24**.45** Path Analyses-Sweep 5 (n=308)
Path Analyses Fathers Alcohol Use Mothers Alcohol Use Child alcohol use (21 yrs) Mothers Monitoring.17* *.48** Fig. 2 Path model showing the hypothesised relations between the observed variables Path coefficients reported ** p<0.01, *p<0.05 Path Analyses-Sweep 7 (n=181)
The BYDS team: Dr Oliver Perra Dr Mark McCann Claire McCartan Dr Aisling McLaughlin John Moriarty Dr Kathryn Higgins (Deputy Director ICCR)