Mary Waldron1, Ellen L Vaughan2, Kathleen K Bucholz3, Michael T Lynskey4, Carolyn E Sartor5, Alexis E Duncan6, Pamela A F Madden3, Andrew C Heath3. 1. School of Education, Indiana University, Bloomington, IN, USA; Midwest Alcoholism Research Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA. Electronic address: mwaldron@indiana.edu. 2. School of Education, Indiana University, Bloomington, IN, USA. 3. Midwest Alcoholism Research Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA. 4. Addictions Department, Institute of Psychiatry, King's College, London, UK. 5. Midwest Alcoholism Research Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA. 6. Midwest Alcoholism Research Center, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA; George Warren Brown School of Social Work, Washington University, St. Louis, MO, USA.
Abstract
BACKGROUND: We examined timing of substance involvement as a joint function of parental history of alcoholism and parental separation during childhood. METHOD: Data were drawn from a large cohort of female like-sex twins [n=613 African Ancestry (AA), n=3550 European or other ancestry (EA)]. Cox proportional hazards regression was conducted predicting age at first use of alcohol, first alcohol intoxication, first use and regular use of cigarettes, and first use of cannabis and other illicit drugs from dummy variables coding for parental alcoholism and parental separation. Propensity score analysis was also conducted comparing intact and separated families by predicted probability of parental separation. RESULTS: In EA families, increased risk of substance involvement was found in both alcoholic and separated families, particularly through ages 10 or 14 years, with risk to offspring from alcoholic separated families further increased. In AA families, associations with parental alcoholism and parental separation were weak and with few exceptions statistically nonsignificant. While propensity score findings confirmed unique risks observed in EA families, intact and separated AA families were poorly matched on risk-factors presumed to predate parental separation, especially parental alcoholism, requiring cautious interpretation of AA survival-analytic findings. CONCLUSION: For offspring of European ancestry, parental separation predicts early substance involvement that is not explained by parental alcoholism nor associated family background characteristics. Additional research is needed to better characterize risks associated with parental separation in African American families.
BACKGROUND: We examined timing of substance involvement as a joint function of parental history of alcoholism and parental separation during childhood. METHOD: Data were drawn from a large cohort of female like-sex twins [n=613 African Ancestry (AA), n=3550 European or other ancestry (EA)]. Cox proportional hazards regression was conducted predicting age at first use of alcohol, first alcohol intoxication, first use and regular use of cigarettes, and first use of cannabis and other illicit drugs from dummy variables coding for parental alcoholism and parental separation. Propensity score analysis was also conducted comparing intact and separated families by predicted probability of parental separation. RESULTS: In EA families, increased risk of substance involvement was found in both alcoholic and separated families, particularly through ages 10 or 14 years, with risk to offspring from alcoholic separated families further increased. In AA families, associations with parental alcoholism and parental separation were weak and with few exceptions statistically nonsignificant. While propensity score findings confirmed unique risks observed in EA families, intact and separated AA families were poorly matched on risk-factors presumed to predate parental separation, especially parental alcoholism, requiring cautious interpretation of AA survival-analytic findings. CONCLUSION: For offspring of European ancestry, parental separation predicts early substance involvement that is not explained by parental alcoholism nor associated family background characteristics. Additional research is needed to better characterize risks associated with parental separation in African American families.
Authors: Mary Waldron; Julia D Grant; Kathleen K Bucholz; Michael T Lynskey; Wendy S Slutske; Anne L Glowinski; Anjali Henders; Dixie J Statham; Nicholas G Martin; Andrew C Heath Journal: Drug Alcohol Depend Date: 2013-09-19 Impact factor: 4.492
Authors: Mary Waldron; Kelly A Doran; Kathleen K Bucholz; Alexis E Duncan; Michael T Lynskey; Pamela A F Madden; Carolyn E Sartor; Andrew C Heath Journal: J Adolesc Health Date: 2015-05 Impact factor: 5.012
Authors: Kathleen K Bucholz; Vivia V McCutcheon; Arpana Agrawal; Danielle M Dick; Victor M Hesselbrock; John R Kramer; Samuel Kuperman; John I Nurnberger; Jessica E Salvatore; Marc A Schuckit; Laura J Bierut; Tatiana M Foroud; Grace Chan; Michie Hesselbrock; Jacquelyn L Meyers; Howard J Edenberg; Bernice Porjesz Journal: Alcohol Clin Exp Res Date: 2017-01-10 Impact factor: 3.455
Authors: Vivia V McCutcheon; Arpana Agrawal; Sally I-Chun Kuo; Jinni Su; Danielle M Dick; Jacquelyn L Meyers; Howard J Edenberg; John I Nurnberger; John R Kramer; Samuel Kuperman; Marc A Schuckit; Victor M Hesselbrock; Andrew Brooks; Bernice Porjesz; Kathleen K Bucholz Journal: Addiction Date: 2017-09-06 Impact factor: 6.526
Authors: Andrew C Heath; Christina N Lessov-Schlaggar; Min Lian; Ruth Miller; Alexis E Duncan; Pamela A F Madden Journal: J Stud Alcohol Drugs Date: 2016-09 Impact factor: 2.582
Authors: Brooke E Sadler; Julia D Grant; Alexis E Duncan; Carolyn E Sartor; Mary Waldron; Andrew C Heath; Kathleen K Bucholz Journal: J Stud Alcohol Drugs Date: 2017-05 Impact factor: 2.582
Authors: Leah S Richmond-Rakerd; Wendy S Slutske; Michael T Lynskey; Arpana Agrawal; Pamela A F Madden; Kathleen K Bucholz; Andrew C Heath; Dixie J Statham; Nicholas G Martin Journal: J Abnorm Psychol Date: 2016-08-18
Authors: Julia D Grant; Mary Waldron; Carolyn E Sartor; Jeffrey F Scherrer; Alexis E Duncan; Vivia V McCutcheon; Jon Randolph Haber; Theodore Jacob; Andrew C Heath; Kathleen K Bucholz Journal: Alcohol Clin Exp Res Date: 2015-06-08 Impact factor: 3.455
Authors: L Cinnamon Bidwell; Rohan H C Palmer; Leslie Brick; Pamela A F Madden; Andrew C Heath; Valerie S Knopik Journal: Behav Genet Date: 2016-04-20 Impact factor: 2.805