The Belfast Youth Development Study: A longitudinal study of adolescence.

The Belfast Youth Development Study:

A longitudinal study of adolescence

The Sample

Wave 13,834

Wave 24,343

Wave 34,522

Wave 43,965

Wave 53,830

Wave 62,335

Wave 72,087

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 20/21

2001 2002 2003 2004 2005 2006/2007 2010/2011

The Questionnaire

The questionnaire

Adolescent drug use

Personal characteristicsFamily

Peers, School and Neighbourhood

e.g. Alcoholintoxication

e.g. Problem drug use

e.g. Mental health

e.g. Personalitytraits

e.g. Parentalattachment

e.g. Parentalmonitoring

e.g. Schoolfriends

e.g. Educationalaspirations

e.g. Neighbour-hood control

• Weekly Cannabis Use (age 15): Adjusted Odds Ratios

Predictors age 13 OR 95%

C.I.

Quality of Bad Reference

Pupil-Teachers Neutral 0.90 0.61 1.35

Relationships Good 0.48** 0.30 0.78

Been involved in a No Reference

fight at school Yes 1.43* 1.08 1.89

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 trajectory Lower SESN = 820

Middle SESN = 1000

Higher SESN = 1178

Non drinkers 0.56 0.25 0.40

Late occasional drinking 3.55 2.51 3.37

Persistent occasional drinking 2.22 2.22 2.46

Occasional Moderate drinking 7.92 7.80 7.56

Persistent moderate drinking 9.40 9.70 8.63

Moderate Frequent drinking 13.04 13.27 14.4

Persistent frequent drinking 12.99 14.93 15.58

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*

.10-.04

-.18*

.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)