This study contributes further evidence to the growing body of literature supporting of strong parenting practices and high levels of strong family bonding characteristics as protective factors for smoking initiation. In this nationally representative sample of African American, Hispanic, and Caucasian youth, specific family bonding variables emerged as protective factors against initiating smoking over a one-year interval by race/ethnicity, and substratification by age group.
Prior studies have examined racial/ethnic differences in predictors of smoking initiation not analyzed in this study. In past studies, it has been demonstrated that stronger religious ties, greater parental disapproval of smoking, attachment, normative prescriptions against smoking, parent-child closeness, monitoring, social norms, and rejection of media influences are more important protective factors in African Americans than Caucasians (
Mermelstein, 1999;
Chassin, Presson, Todd, Rose, & Sherman, 1998), while factors such as maternal smoking, peer smoking and approval for smoking pose greater risk for smoking initiation among Caucasians than minorities such as African Americans (
Griesler, Kandel, & Davies, 2002;
Clark, Scarisbrick-Hauser, Gautam, & Wirk, 1999;
Catalano, Morrison, Wells, Gillmore, Iritani, & Hawkins, 1992). Stronger family attachment, communication, and parental respect has been shown to be protective against smoking initiation in Hispanics compared to Caucasians (
Headen, Bauman, Deane, & Koch, 1991;
Hunter, Croft, Vizelberg, & Berenson, 1987).
The present analysis demonstrates that smoking initiation is more common among adolescents who have lower levels of family bonding compared to those who have higher levels of family bonding and supports our primary hypothesis that higher levels of family bonding will result in decreased adolescent smoking initiation. Although we were able to delineate specific measures of family bonding that were protective against smoking initiation in different race/ethnicity and age groups, we were not able to identify a cross-cutting set of protective factors that was uniformly protective in all subgroups nor a set of protective factors that was uniformly protective within individual subgroups. Nevertheless, we found that for both younger African American and Hispanic youth, maternal satisfaction with their relationship with their adolescent was significantly protective. To our knowledge, this has not been previously described in the literature as it relates to smoking; however,
adolescent satisfaction with their relationship with their mothers has been shown to be important in predicting adolescent sexual risk behavior in the AddHealth dataset (
Sussman, Dent, Flay, Hansen, & Johnson, 1987). For older Hispanics, high parental presence and high parent-family connectedness were protective against smoking initiation, which supports the literature that states that parental influence remains important even in older adolescents (
Sargent & Dalton, 2001;
Simons-Morton, 2004;
Simons-Morton, Chen, et al., 2004;
Steinberg, Fletcher, et al., 1994;
Chassin, Presson, Sherman, et al., 1986) and the literature that emphasizes the important role that family plays in preventing smoking in Hispanic adolescents (
Headen, Bauman, et al., 1991;
Hunter, Croft, et al., 1987;
Cowdery, Fitzhugh, & Wang, 1997). Lack of parental awareness about the adolescent’s whereabouts was a risk factor for smoking initiation in younger Caucasians, and in older Hispanics and Caucasians. Low parental monitoring and lack of awareness of their adolescent’s activities has been associated with increased adolescent risk behavior including smoking initiation and progression, alcohol use, substance/drug use, sexual risk behaviors, and violent behaviors (
Simons-Morton, 2002;
Simons-Morton, Chen, et al., 2004;
Unger, Shakib, Gallaher, Ritt-Olson, Mouttapa, Palmer, et al., 2006;
Freeberg & Stein, 1996). These factors identified as uniquely or more strongly associated with initiating smoking in different racial/ethnic and age groups require additional study, as they may have implications for the development of appropriate smoking prevention strategies for African American, Hispanic, and Caucasian youth.
It is important to note that the study population intentionally was limited to adolescents who were living with their mothers or female legal guardians as most studies that have examined smoking in the context of parental–child relationships have examined only responses by female caregivers (
Griesler & Kandel, 1998;
Griesler, Kandel, & Davies, 2002). The adolescents in this study, however, gave responses on pertaining to both female and male caregivers. In addition, we examined predictors of ever smoking which was defined as experimenting with cigarettes or being a current or former smoker. We selected this outcome variable based on the importance of identifying onset of experimentation, and because even sporadic experimentation with cigarettes has been shown to increase the likelihood of becoming a regular smoker as an adult by a factor of 16, compared with adolescents who have never tried even a puff of cigarette smoke (
Borawski, Ievers-Landis, Lovegreen, & Trapl, 2003).
There are several limitations to this study which should be considered when interpreting these data. First, the lack of a longer interval between the Wave 1 and Wave 2 interviews and the small ethnic and age subsample sizes reduced statistical power to detect factors associated with smoking initiation in our study. Small subsample sizes among African American and Hispanic youth may account for the greater number of significant risk and protective factors found for Caucasian youth than for African American and Hispanic youth. Second, we were not able to test whether these same factors predict timing of smoking initiation among adolescents who experimented with or became regular smokers prior to the time of Wave 1 interviews. The mean age of our study sample was 14.4 years; thus these data were collected at an age when a large proportion of the sample had already begun smoking at baseline. This raises questions regarding the generalizability of the results given that, in large part, they reflect data from a subset of adolescents who remained never smokers until relatively late in adolescence. Nevertheless, these data were drawn from a nationally representative sample, so that these concerns may be overstated. Third, these data are correlational in nature, thus limiting the extent to which conclusions regarding causation may be drawn. Although we interpret these data as partially consistent with a bidirectional causal model, we acknowledge that in the absence of experimental manipulation we cannot exclude the possibility of unobserved confounding. Relatedly, although the AddHealth dataset permits the examination of smoking and family bonding relationships in a large, longitudinal sample with a broad set of potential covariates, important aspects of family bonding that have been shown to affect onset of smoking initiation were not measured. For example, there are no measures of parental supportiveness, parental monitoring of specific adolescent activities and friendships, parental acceptance, or behavioral control, all of which are protective parenting practices (
Chassin, Presson, Sherman, Montello, & McGrew, 1986;
Chassin, Presson, Rose, & Sherman, 2001;
Stanton, et al, 2000). In addition, the dataset does not contain specific measures of parental antismoking socialization (e.g., frequency, type, and quality of explicit antismoking messages, negative parental attitudes toward smoking, and punishment for smoking) all of which have been associated with decreased initiation (
Andersen et al., 2004;
Chassin et al., 1998;
Harakeh et al, 2004; Henricksen & Jackson, 1998;
Jackson 1997;
Jackson & Henricksen, 1997;
Sargent & Dalton, 2001). Therefore, variables such as these remain key targets for the future study of smoking initiation among adolescent youths. Nevertheless, given the paucity of published research on ethnic-specific protective factors against tobacco initiation by younger and older adolescent age groups, we believe that our study carries substantial value and provides important information for researchers and clinicians involved in developing smoking prevention interventions among racial/ethnically diverse populations. Finally, these data are based entirely on self-report, although the original Add Health study design strived as far as possible to minimize bias by ensuring appropriate confidentiality. It would have been desirable to have had biochemical validation of smoking status. Nevertheless, similar measures have been employed in studies of this kind, and there is evidence that self-report data collected appropriately are broadly reliable and valid.
Despite these limitations, there are a number of clinical practice and public health implications of the findings of this study for the prevention of adolescent smoking initiation. First, health care providers can educate parents early on about the importance of changing modifiable risk factors for smoking initiation such as encouraging parents to spend time with their children at home and to help adolescents in daily activities, to try to communicate more effectively with their adolescent so that they feel understood and cared for, and to be aware of their outside activities. Health care professionals have a responsibility to inquire about family interactions and connectedness and they should educate parents and other caretakers about the importance of such factors in potentially preventing not only tobacco use but other substance use and sexual risk behaviors.