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Changes in genetic and environmental influences on the development of nicotine dependence and major depressive disorder from middle adolescence to early adulthood

Published online by Cambridge University Press:  01 October 2010

Erin C. Tully*
Affiliation:
Georgia State University
William G. Iacono
Affiliation:
University of Minnesota
Matt McGue
Affiliation:
University of Minnesota
*
Address correspondence and reprint requests to: Erin Tully, Department of Psychology, Georgia State University, P.O. Box 5010, Atlanta, GA 30302-5010; E-mail: [email protected].

Abstract

This longitudinal study used a representative community sample of same-sex twins (485 monozygotic pairs, 271 dizygotic pairs) to study longitudinal changes in genetic and environmental influences on nicotine dependence (NicD) symptoms and major depressive disorder (MDD) symptoms and the longitudinal relationships between NicD and MDD symptoms at three relatively discrete ages spanning middle adolescence to early adulthood (ages 15, 18, and 21). Clinical interviews were used to assess NicD and MDD symptoms lifetime at age 15 and during the previous 3 years at the two subsequent assessments. Biometric models revealed similar patterns of findings for NicD and MDD. Heritability increased with age, particularly between ages 15 and 18. Shared environmental influences were small, and the proportion of variance attributed to shared environmental influences decreased with age. Nonshared environmental influences were moderate to large in magnitude and were entirely age specific. Both NicD and MDD symptoms showed considerable stability from age 15 to 21, and at each age those with one disorder showed elevated rates of the other. However, a cross-lagged model revealed no longitudinal predictive relationships between MDD symptoms and NicD symptoms after accounting for stability of symptoms within disorders. In summary, the transition between middle and late adolescence is a critical period for developmental shifts in the magnitudes of genetic and environmental influences on both MDD and NicD symptoms. Despite similarities in the development of genetic and environmental influences for the two phenotypes, the association between NicD and MDD reflects concurrent covariation rather than one phenotype being an antecedent influence on the subsequent development of the other.

Type
Regular Articles
Copyright
Copyright © Cambridge University Press 2010

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References

Achenbach, T. M. (1991). Manual for the Child Behavior Checklist/4–18 and 1991 profile. Burlington, VT: University of Vermont.Google Scholar
Baker, L. A., & Daniels, D. (1990). Nonshared environmental influences and personality differences in adult twins. Journal of Personality and Social Psychology, 58, 103110.CrossRefGoogle ScholarPubMed
Bergen, S. E., Gardner, C. O., & Kendler, K. S. (2007). Age-related changes in heritability of behavioral phenotypes over adolescence and young adulthood: A meta-analysis. Twin Research and Human Genetics, 10, 423433.CrossRefGoogle Scholar
Biglan, A., Duncan, T. E., Ary, D. V., & Smolkowski, K. (1995). Peer and parental influences on adolescent tobacco use. Journal of Behavioral Medicine, 18, 315330.CrossRefGoogle ScholarPubMed
Boomsma, D. I., Koopmans, J. R., van Doornen, L. J. P., & Orlebeke, J. F. (1994). Genetic and social influences on starting to smoke: a study of Dutch adolescent twins and their parents. Addiction, 89, 219226.Google Scholar
Brown, R. A., Lewinsohn, P. M., Seeley, J. R., & Wagner, E. F. (1996). Cigarette smoking, major depression, and other psychiatric disorders among adolescents. Journal of the American Academy of Child & Adolescent Psychiatry, 35, 16021610.Google Scholar
Carmelli, D., Swan, G. E., Robinette, D., & Fabsitz, R. R. (1990). Heritability of substance use in the NAS-NRC Twin Registry. Acta Geneticae Medicae et Gemellologial, 39, 9198.CrossRefGoogle ScholarPubMed
Cassano, P., & Fava, M. (2002). Depression and public health: An overview. Journal of Psychosomatic Research, 53, 849857.CrossRefGoogle Scholar
Chaiton, M. O., Cohen, J. E., O'Loughlin, J., & Rehm, J. (2009). A systematic review of longitudinal studies on the association between depression and smoking in adolescents. BCM Public Health, 9, 111.Google ScholarPubMed
Chassin, L., Presson, C. C., Rose, J. S., & Sherman, S. J. (1996). The natural history of cigarette smoking from adolescence to adulthood: Demographic predictors of continuity and change. Health Psychology, 15, 478484.Google Scholar
Cicchetti, D. (1984). The emergence of developmental psychopathology. Child Development, 55, 17.CrossRefGoogle ScholarPubMed
Clark, D. B., Kirisci, L., & Moss, H. B. (1998). Early adolescent gateway drug use in sons of fathers with substance use disorders. Addictive Behaviors, 23, 561566.CrossRefGoogle ScholarPubMed
Costello, E., Mustillo, S., Erkanli, A., Keeler, G., & Angold, A. (2003). Prevalence and development of psychiatric disorders in childhood and adolescence. Archives of General Psychiatry, 60, 837844.CrossRefGoogle ScholarPubMed
Eaves, L. J., Silberg, J. L., Maes, H. H., Simonoff, E., Pickles, A., Rutter, M., et al. (1997). Genetics and developmental psychopathology: 2. The main effects of genes and environment on behavioral problems in the Virginia Twin Study of Adolescent Behavioral Development. Journal of Child Psychology and Psychiatry, 38, 965980.CrossRefGoogle ScholarPubMed
Eberhart, N. K., & Hammen, C. L. (2006). Interpersonal predictors of onset of depression during the transition to adulthood. Personal Relationships, 13, 195206.Google Scholar
Ehringer, M. A., Rhee, S. H., Young, S., Corley, R., & Hewitt, J. K. (2006). Genetic and environmental contributions to common psychopathologies of childhood and adolescence: A study of twins and their siblings. Journal of Abnormal Child Psychology, 34, 117.Google Scholar
Eissenberg, T., & Balster, R. L. (2000). Initial tobacco use episodes in children and adolescents: Current knowledge, future directions. Drug and Alcohol Dependence, 59 (Suppl. 1), 4160.Google Scholar
Eley, T. C., & Plomin, R. (1997). Genetic analyses of emotionality. Current Opinion in Neurobiology, 7, 279284.Google Scholar
Eley, T. C., & Stevenson, J. (1999). Exploring the covariation between anxiety and depression symptoms: A genetic analysis of the effects of age and sex. Journal of Child Psychology and Psychiatry, 40, 12731282.Google Scholar
Elkins, I. J., McGue, M., & Iacono, W. G. (1997). Genetic and environmental influences on parent-son relationships: Evidence for increasing genetic influence during adolescence. Developmental Psychology, 33, 351363.Google Scholar
Fendrich, M., Warner, V., & Weissman, M. M. (1990). Family risk factors, parental depression, and psychopathology in offspring. Developmental Psychology, 26, 4050.Google Scholar
Fergusson, D. M., Horwood, L. J., & Lynskey, M. T. (1995). Maternal depressive symptoms and depressive symptoms in adolescents. Journal of Child Psychology and Psychiatry and Allied Disciplines, 36, 11611178.CrossRefGoogle ScholarPubMed
Fergusson, D. M., Lynskey, M. T., & Horwood, L. J. (1996). Comorbidity between depressive disorders and nicotine dependence in a cohort of 16-year-olds. Archives of General Psychiatry, 53, 10431047.CrossRefGoogle Scholar
Fombonne, E., Wostear, G., Cooper, V., Harrington, R., & Rutter, M. (2001). The Maudsley long-term follow-up of child and adolescent depression: I. Psychiatric outcomes in adulthood. British Journal of Psychiatry, 179, 210217.Google Scholar
Gjone, H., Stevenson, J., Sundet, J. M., & Eilertsen, D. E. (1996). Changes in heritability across increasing levels of behavior problems in young twins. Behavior Genetics, 26, 419426.CrossRefGoogle ScholarPubMed
Glowinski, A. L., Madden, P. A., Bucholz, K. K., Lynskey, M. T., & Heath, A. C. (2003). Genetic epidemiology of self-reported lifetime DSM-IV major depressive disorder in a population-based twin sample of female adolescents. Journal of Child Psychology and Psychiatry, 44, 988996.Google Scholar
Grant, B. F., Hasin, D. S., Chou, S. P., Stinson, F. S., & Dawson, D. A. (2004). Nicotine dependence and psychiatric disorders in the United States: Results from the national epidemiologic survey on alcohol and related conditions. Archives of General Psychiatry, 61, 11071115.Google Scholar
Greden, J. F. (2001). The burden of recurrent depression: causes, consequences, and future prospects. Journal of Clinical Psychiatry, 62 (Suppl. 22), 59.Google Scholar
Griesler, P. C., Hu, M. C., Schaffran, C., Kandel, D. B., Griesler, P. C., Hu, M.-C., et al. (2008). Comorbidity of psychiatric disorders and nicotine dependence among adolescents: Findings from a prospective, longitudinal study. Journal of the American Academy of Child & Adolescent Psychiatry, 47, 13401350.CrossRefGoogle ScholarPubMed
Hall, W., Madden, P., & Lynskey, M. (2002). The genetics of tobacco use: methods, findings and policy implications. Tobacco Control, 11, 119124.CrossRefGoogle ScholarPubMed
Hankin, B. L., Abramson, L. Y., Silva, P. A., McGee, R., Moffitt, T. E., & Angell, K. E. (1998). Development of depression from preadolescence to young adulthood: Emerging gender differences in a 10-year longitudinal study. Journal of Abnormal Psychology, 107, 128140.Google Scholar
Harrington, R., Fudge, H., Rutter, M., Pickles, A., & Hill, J. (1990). Adult outcomes of childhood and adolescent depression: I. Psychiatric status. Archives of General Psychiatry, 47, 465473.CrossRefGoogle ScholarPubMed
Heath, A. C., Madden, P. A. & Martin, N. G. (1998). Statistical methods in genetic research on smoking. Statistical Methods in Medical Research, 7, 165186.Google Scholar
Heckman, J. J. (2006). Skill formation and the economics of investing in disadvantaged children. Science, 312, 19001902.CrossRefGoogle ScholarPubMed
Hewitt, J. K., Silberg, J., Neale, M., Eaves, L., & Erickson, M. (1992). The analysis of parental ratings of children's behavior using LISREL. Behavior Genetics, 22, 293317.Google Scholar
Hu, M. C., Davies, M., Kandel, D. B., Hu, M.-C., Davies, M., & Kandel, D. B. (2006). Epidemiology and correlates of daily smoking and nicotine dependence among young adults in the United States. American Journal of Public Health, 96, 299308.Google Scholar
Iacono, W. G., Carlson, S. R., Taylor, J. T., Elkins, I. J., & McGue, M. (1999). Behavioral disinhibition and the development of substance use disorders: Findings from the Minnesota Twin Family Study. Development and Psychopathology, 11, 869900.CrossRefGoogle ScholarPubMed
Iacono, W. G., McGue, M., & Krueger, R. F. (2006). Minnesota Center for Twin and Family Research. Twin Research and Human Genetics, 9, 978984.CrossRefGoogle ScholarPubMed
Kandela, D. B., Hua, M.-C., Grieslerb, P. C., & Schaffranc, C. (2007). On the development of nicotine dependence in adolescence. Drug and Alcohol Dependence, 91, 2639.Google Scholar
Kaprio, J., Hammar, N., Koskenvuo, M., Floderus-Myrhed, B., Langinvainio, H., & Sarna, S. (1982). Cigarette smoking and alcohol use in Finland and Sweden: A cross-national twin study. International Journal of Epidemiology, 11, 378386.Google Scholar
Kardia, S. L., Pomerleau, C. S., Rozek, L. S., & Marks, J. L. (2003). Association of parental smoking history with nicotine dependence, smoking rate, and psychological cofactors in adult smokers. Addictive Behaviors, 28, 14471452.Google Scholar
Kendler, K. S., Martin, N. G., Heath, A. C., & Eaves, L. J. (1995). Self-report psychiatric symptoms in twins and their non-twin relatives: Are twins different? American Journal of Medical Genetics, 60, 558591.Google Scholar
Kendler, K. S., Neale, M. C., MacLean, C. J., Heath, A. C., Eaves, L. J., & Kessler, R. C. (1993). Smoking and major depression. Archives of General Psychiatry, 50, 3643.Google Scholar
Kendler, K. S., Neale, M. C., Sullivan, P., Corey, L. A., Gardner, C. O., & Prescott, C. A. (1999). A population-based twin study in women of smoking initiation and nicotine dependence. Psychological Medicine, 29, 299308.Google Scholar
Kendler, K. S., Thornton, L. M., & Pedersen, N. L. (2000). Tobacco consumption in Swedish twins reared apart and reared together. Archives of General Psychiatry, 57, 886892.Google Scholar
Keyes, M., Legrand, L. N., Iacono, W. G., & McGue, M. (2008). Parental smoking and adolescent problem behavior: An adoption study of general and specific effects. American Journal of Psychiatry, 165, 13381344.Google Scholar
Koopmans, J. R., Slutske, W. S., Heath, A. C., Neale, M. C., & Boomsma, D. I. (1999). The genetics of smoking initiation and quantity smoked in Dutch adolescent and young adult twins. Behavioral Genetics, 29, 383393.CrossRefGoogle ScholarPubMed
Kovacs, M. (1985). The Children's Depression Inventory (CDI). Psychopharmacology Bulletin, 21, 995998.Google Scholar
Lewinsohn, P. M., Rohde, P., & Seeley, J. R. (1998). Major depressive disorder in older adolescents: Prevalence, risk factors, and clinical implications. Clinical Psychology Review, 18, 765794.Google Scholar
Li, M. D., Cheng, R., Ma, J. Z., & Swan, G. E. (2003). A meta-analysis of estimated genetic and environmental effects on smoking behavior in male and female adult twins. Addiction, 98, 2331.Google Scholar
Lieb, R., Schreier, A., Pfister, H., & Wittchen, H. (2003). Maternal smoking and smoking in adolescents: A prospective community study of adolescents and their mothers. European Addiction Research, 9, 120130.Google Scholar
Lopez, A. D. (2006). Disease Control Priorities Project: Global burden of disease and risk factors. Washington, DC: Oxford University Press.Google Scholar
Lyons, M., Hitsman, B., Xian, H., Panizzon, M. S., Jerskey, B. A., Santangelo, S., et al. (2008). A twin study of smoking, nicotine dependence, and major depression in men. Nicotine & Tobacco Research, 10, 97108.Google Scholar
Maes, H. H., Woodard, C. E., Murrelle, L., Meyer, J. M., Silberg, J. L., Hewitt, J. K., et al. (1999). Tobacco, alcohol and drug use in eight- to sixteen-year-old twins: The Virginia Twin Study of Adolescent Behavioral Development. Journal of Studies on Alcohol, 60, 293305. Retrieved from http://www.jsad.comGoogle Scholar
Manke, B., McGuire, S., Reiss, D., Hetherington, E. M., & Plomin, R. (1995). Genetic contributions to adolescents' extrafamilial social interactions: Teachers, best friends, and peers. Social Development, 4, 238256.Google Scholar
Mathers, C. D., Stein, C., Fat, D. M., Rao, C., Inoue, M., Tomijima, N., et al. (2000). Global burden of disease 2000: Version 2. Methods and results. Geneva: World Health Organization.Google Scholar
McCaffery, J. M., Niaura, R., Swan, G. E., & Carmelli, D. (2003). A study of depressive symptoms and smoking behavior in adult male twins from the NHLBI twin study. Nicotine & Tobacco Research, 5, 7783.Google Scholar
McGue, M., Elkins, I., & Iacono, W. G. (2000). Genetic and environmental influences on adolescent substance use and abuse. American Journal of Medical Genetics (Neuropsychiatric Genetics), 96, 671677.Google Scholar
McGue, M., Elkins, I., Walden, B., & Iacono, W. G. (2005). Perceptions of the parent–adolescent relationship: A longitudinal investigation. Developmental Psychology, 41, 971984.Google Scholar
McGue, M., lacono, W. G., & Krueger, R. (2006). The association of early adolescent problem behavior and adult psychopathology: A multivariate behavioral genetic perspective. Behavior Genetics, 36, 591602.CrossRefGoogle ScholarPubMed
Muthén, L. K., & Muthén, B. O. (1998–2007). Mplus user's guide (5th ed.).Los Angeles: Author.Google Scholar
Neale, M. C., Boker, S. M., Xie, G., & Maes, H. H. (1999). Mx: Statistical modeling (5th ed.).Richmond, VA: Virginia Commonwealth University, Department of Psychiatry.Google Scholar
O'Connor, T. G., McGuire, S., Reiss, D., Hetherington, E., & Plomin, R. (1998). Co-occurrence of depressive symptoms and antisocial behavior in adolescence: A common genetic liability. Journal of Abnormal Psychology, 107, 2737.Google Scholar
O'Connor, T. G., Neiderhiser, J. M., Reiss, D., Hetherington, E., & Plomin, R. (1998). Genetic contributions to continuity, change, and co-occurrence of antisocial and depressive symptoms in adolescence. Journal of Child Psychology and Psychiatry, 39, 323336.Google Scholar
Patterson, G. R. (1982). A social learning approach to family intervention: Vol. 3. Coercive family process. Eugene, OR: Castalia.Google Scholar
Patton, G. C., Coffey, C., Carlin, J. B., Sawyer, S. M., & Wakefield, M. (2006). Teen smokers reach their mid twenties. Journal of Adolescent Health, 39, 214220.Google Scholar
Pedersen, W., & von Soest, T. (2009). Smoking, nicotine dependence and mental health among young adults: A 13-year population-based longitudinal study. Addiction, 104, 129137.Google Scholar
Pike, A., McGuire, S., Hetherington, E. M., Reiss, D., & Plomin, R. (1996). Family environment and adolescent depressive symptoms and antisocial behavior: A multivariate genetic analysis. Developmental Psychology, 32, 590604.CrossRefGoogle Scholar
Plomin, R., DeFries, J. C., & Loehlin, J. C. (1977). Genotype–environment interaction and correlation in the analysis of human behavior. Psychological Bulletin, 84, 309322.CrossRefGoogle ScholarPubMed
Plomin, R., Reiss, D., Hetherington, E. M., & Howe, G. W. (1994). Nature and nurture: Genetic contributions to measures of the family environment. Developmental Psychology, 30, 3243.Google Scholar
Prinstein, M. J., Cheah, C. S., & Guyer, A. E. (2005). Peer victimization, cue interpretation, and internalizing symptoms: Preliminary concurrent and longitudinal findings for children and adolescents. Journal of Clinical Child and Adolescent Psychology, 34, 1124.Google Scholar
Radloff, L. S. (1977). The CES-D Scale: A self-report depression scale for research in the general population. Applied Psychological Measurement, 1, 385401.Google Scholar
Rao, U., Hammen, C., & Daley, S. E. (1999). Continuity of depression during the transition to adulthood: A 5-year longitudinal study of young women. Journal of the American Academy of Child & Adolescent Psychiatry, 38, 908915.Google Scholar
Reich, W., & Welner, Z. (1988). Diagnostic Interview for Children and Adolescents—Revised: DSM-III-R version (DICA-R). St. Louis, MO: Washington University.Google Scholar
Rende, R. D., Plomin, R., Reiss, D., & Hetherington, E. (1993). Genetic and environmental influences on depressive symptomatology in adolescence: Individual differences and extreme scores. Journal of Child Psychology and Psychiatry, 34, 13871398.Google Scholar
Rice, F., Harold, G. T., & Thaper, A. (2002a). Assessing the effects of age, sex and shared environment on the genetic aetiology of depression in childhood and adolescence. Journal of Child Psychology and Psychiatry, 43, 10391051.CrossRefGoogle ScholarPubMed
Rice, F., Harold, G. T., & Thaper, A. (2002b). The genetic aetiology of childhood depression: A review. Journal of Child Psychology and Psychiatry, 43, 6579.CrossRefGoogle ScholarPubMed
Riley, W. T., Kaugers, G. E., Grisius, T. M., Page, D. G., Burns, J. C., & Svirsky, J. A. (1996). Adult smokeless tobacco use and age of onset. Addictive Behaviors, 21, 135138.Google Scholar
Robins, L. N., Baber, T., & Cottler, L. B. (1987). Composite International Diagnostic Interview: Expanded Substance Abuse Module. Unpublished manuscript.Google Scholar
Robins, L. N., Wing, J., Wittchen, H. U., Helzer, J. E., Babor, T. F., Burke, J., et al. (1988). The Composite International Diagnostic Interview. Archives of General Psychiatry, 45, 10691077.Google Scholar
Roisman, G. I., Masten, A. S., Coatsworth, J. D., & Tellegen, A. (2004). Salient and emerging developmental tasks in the transition to adulthood. Child Development, 75, 123133.Google Scholar
Russell, M. A. H. (1990). The nicotine addiction trap: A 40-year sentence for four cigarettes. British Journal of Addiction, 85, 293300.Google Scholar
Rutter, M. (1999). Resilience concepts and findings: Implications for family therapy. Journal of Family Therapy, 21, 119144.CrossRefGoogle Scholar
Rutter, M., Moffitt, T. E., & Caspi, A. (2006). Gene–environment interplay and psychopathology: Multiple varieties but real effects. Journal of Child Psychology and Psychiatry 47, 226261.Google Scholar
Rutter, M., & Sroufe, A. (2000). Developmental psychopathology: Concepts and challenges. Development and Psychopathology, 12, 265296.Google Scholar
Satorra, A. (2000). Scaled and adjusted restricted tests in multisample analysis of moment structures. In Heijmails, D. D. H., Pollock, D. S. G., & Satorra, A. (Eds.), Innovations in multivariate statistical analysis: A festschrift for Heinz Neudecker (pp. 233247). Dordrecht: Kluwer Academic.Google Scholar
Scarr, S., & McCartney, K. (1983). How people make their own environments: A theory of genotype greater than environmental effects. Child Development, 54, 424435.Google Scholar
Schepis, T. S., & Rao, U. (2005). Epidemiology and etiology of adolescent smoking. Current Opinion in Pediatrics, 17, 607612.Google Scholar
Schmitz, S., Fulker, D. W., & Mrazek, D. A. (1995). Problem behavior in early and middle childhood: An initial behavior genetic analysis. Journal of Child Psychology and Psychiatry, 36, 14431458.Google Scholar
Scourfield, J., Rice, F., Thapar, A., Harold, G. T., Martin, N., & McGuffin, P. (2003). Depressive symptoms in children and adolescents: Changing aetiological influences with development. Journal of Child Psychology and Psychiatry, 44, 968976.Google Scholar
Serbin, L. A., & Karp, J. (2004). The intergenerational transfer of psychosocial risk: Mediators of vulnerability and resilience. Annual Review of Psychology, 55, 333363.Google Scholar
Shiner, R. L., & Marmorstein, N. R. (1998). Family environments of adolescents with lifetime depression: Associations with maternal depression history. Journal of the American Academy of Child & Adolescent Psychiatry, 37, 11521160.Google Scholar
Slomkowski, C., Rende, R., Lloyd-Richardson, E., & Niaura, R. (2005). Sibling effects on smoking in adolescence: Evidence for social influence from a genetically informative design. Addiction, 100, 430438.Google Scholar
Spitzer, R. L., Williams, J. B. W., & Gibbon, M. (1987). Structured Clinical Interview for DSM-III-R (SCID). New York: New York State Psychiatric Institute, Biometrics Research.Google Scholar
Sroufe, L. A., & Rutter, M. (1984). The domain of developmental psychopathology. Child Development, 55, 1729.Google Scholar
Stallings, M. C., Hewitt, J. K., Beresford, T., Heath, A. C., & Eaves, L. J. (1999). A twin study of drinking and smoking onset and latencies from first use to regular use Behavior Genetics, 29, 409421.Google Scholar
Sullivan, P. F., & Kendler, K. S. (1999). The genetic epidemiology of smoking. Nicotine & Tobacco Research, 1, 5157.Google Scholar
Sullivan, P. F., Neale, M. C., & Kendler, K. S. (2000). Genetic epidemiology of major depression: Review and meta-analysis. American Journal of Psychiatry, 157, 15521562.Google Scholar
Thapar, A., & McGuffin, P. (1994). A twin study of depressive symptoms in childhood. British Journal of Psychiatry, 165, 259265.Google Scholar
US Department of Health and Human Services. (1994). Health consequences of smoking cessation: A report of the Surgeon General. Washington, DC: Government Printing Office.Google Scholar
Ustun, T., & Kessler, R. C. (2002). Global burden of depressive disorders: The issue of duration. British Journal of Psychiatry, 181, 181183.Google Scholar
Vogel, J. S., Hurford, D. P., Smith, J. V., & Cole, A. (2003). The relationship between depression and smoking in adolescents. Adolescence, 38, 5774.Google Scholar
Walden, B., McGue, M., Iacono, W. G., Burt, S. A., & Elkins, I. (2004). Identifying shared environmental contributions to early substance use: The respective roles of peers and parents. Journal of Abnormal Psychology, 113, 440450.Google Scholar
Wang, M. Q., Fitzhugh, E. C., Turner, L., Fu. Q., & Westerfield, R. C. (1996). Association of depressive symptoms and school adolescents' smoking: A cross-lagged analysis. Psychological Reports, 79, 127130.Google Scholar
White, V. M., Hopper, J. L., Wearing, A. J., & Hill, D. J. (2003). The role of genes in tobacco smoking during adolescence and young adulthood: A multivariate behaviour genetic investigation. Addiction, 98, 10871100.Google Scholar