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Author: Haibach, Jeffrey P.
Resulting in 3 citations.
1. Haibach, Jeffrey P.
The Association between Fruit and Vegetable Consumption and Cigarette Smoking: Initiation, Cessation, and Possible Explanatory Mechanisms
Ph.D. Dissertation, Department of Community Health and Health Behavior, State University of New York at Buffalo, 2014
Cohort(s): NLSY79 Young Adult
Publisher: ProQuest Dissertations & Theses (PQDT)
Keyword(s): Adolescent Health; Cigarette Use (see Smoking); Depression (see also CESD); Nutritional Status/Nutrition/Consumption Behaviors; Smoking (see Cigarette Use)

Permission to reprint the abstract has not been received from the publisher.

Cigarette smoking is the leading preventable cause of death in the United States and smoking prevalence has declined more slowly in the last decade than previously. This dissertation explored two interrelated factors that might reduce smoking initiation and promote cessation to re-accelerate declines in smoking prevalence: fruit and vegetable consumption (FVC) and depressive symptomatology. Three observational cohort studies were conducted with the first two assessing direct FVC-smoking associations using generalized linear modeling to estimate risk ratios. The third study tested for FVC moderation of depressive symptomatology and smoking associations using the Johnson-Neyman technique. All three studies included covariates of demographics and general health behavior orientation variables for statistical adjustment. Study 1 found that adult smokers (age range = 25-105 years; Mage = 45.6 years) in the highest quartile of FVC at baseline, compared to the lowest, were 3.05 times more likely to quit smoking and remain abstinent from all tobacco products for ≥ 30 days at 1-year follow-up (p < .01; n = 751). Study 2 found longitudinally, through secondary data analysis of National Longitudinal Survey of Youth 1979: Child and Young Adult (NLSY79-CYA) data, that baseline older adolescents (aged 14-18 years in the year 2004) who consumed fruit at least weekly had a lower level of smoking progression at 4-year follow-up than those who typically did not consume fruit ( p < .05; n = 388). Study 3 found FVC moderation of the association between depressive symptomatology and smoking cross-sectionally among both older adolescents (aged 14-18 years; n = 534; NLSY79-CYA data) and younger adults (aged 19-33 years; n = 2164; NLSY79-CYA data). Longitudinally among baseline adolescents, FVC moderated the association between baseline smoking frequency and 4-year follow-up depressive symptomatology. Among baseline young adult smokers, FVC moderated the inverse association between baseline depressive symptomatology and quitting smoking by 4-year follow-up. The results of the three studies suggest that FVC may be protective against cigarette smoking and promote smoking cessation. However, current results remain limited in their generalizability due to survey and analysis methodology paired with the complexity of both dietary and smoking behaviors. Further research is warranted to inform the consistency of the associations, to examine possible explanatory mechanisms, and to assess the efficacy of increasing FVC for smoking prevention and cessation.
Bibliography Citation
Haibach, Jeffrey P. The Association between Fruit and Vegetable Consumption and Cigarette Smoking: Initiation, Cessation, and Possible Explanatory Mechanisms. Ph.D. Dissertation, Department of Community Health and Health Behavior, State University of New York at Buffalo, 2014.
2. Haibach, Jeffrey P.
Homish, Gregory G.
Collins, R. Lorraine
Ambrosone, Christine B.
Giovino, Gary A.
An Evaluation of Fruit and Vegetable Consumption and Cigarette Smoking Among Youth
Nicotine and Tobacco Research 17,6 (June 2015): 719-726.
Also: http://ntr.oxfordjournals.org/content/17/6/719.abstract
Cohort(s): NLSY79 Young Adult
Publisher: Oxford University Press
Keyword(s): Adolescent Health; Cigarette Use (see Smoking); Nutritional Status/Nutrition/Consumption Behaviors; Smoking (see Cigarette Use)

Permission to reprint the abstract has not been received from the publisher.

Introduction: Research across the past 4 decades has supported a cross-sectional association between adult cigarette smoking and lower fruit and vegetable consumption (FVC), and emerging research suggests higher FVC may predict cessation. Among youth, findings are limited to a few cross-sectional studies with somewhat mixed results. Here we evaluated the FVC-smoking association among youth both cross-sectionally and longitudinally.

Methods: We analyzed data from a subsample of the National Longitudinal Survey of Youth 1979: Child and Young Adult. The subsample included adolescents aged 14-18 years at baseline in the year 2004. Multivariable cross-sectional analyses assessed whether baseline FVC was associated with smoking frequency among ever-smokers (n = 578). Longitudinally, the study assessed whether baseline FVC predicted smoking progression among baseline never-smokers who tried a cigarette by 4-year follow-up (n = 388). Multivariable regression models adjusted for age, gender, race/ethnicity, parental education, and health behavior orientation.

Bibliography Citation
Haibach, Jeffrey P., Gregory G. Homish, R. Lorraine Collins, Christine B. Ambrosone and Gary A. Giovino. "An Evaluation of Fruit and Vegetable Consumption and Cigarette Smoking Among Youth." Nicotine and Tobacco Research 17,6 (June 2015): 719-726.
3. Haibach, Jeffrey P.
Homish, Gregory G.
Collins, R. Lorraine
Ambrosone, Christine B.
Giovino, Gary A.
Fruit and Vegetable Intake as a Moderator of the Association Between Depressive Symptoms and Cigarette Smoking
Substance Abuse 37,4 (2016): 571-578.
Also: http://tandfonline.com/doi/abs/10.1080/08897077.2016.1179703
Cohort(s): NLSY79 Young Adult
Publisher: Taylor & Francis Group
Keyword(s): Cigarette Use (see Smoking); Depression (see also CESD); Nutritional Status/Nutrition/Consumption Behaviors

Permission to reprint the abstract has not been received from the publisher.

Background: Studies have consistently reported associations among depression, cigarette smoking, and fruit and vegetable intake (FVI). This study evaluated FVI as a moderator of the association between depressive symptoms and smoking.

Methods: We analyzed data from the National Longitudinal Survey of Youth 1979: Child and Young Adult. The study sample was adults aged 19–33 years at baseline in the year 2004 from the Young Adult Survey portion. Moderation analyses were performed using the Johnson-Neyman technique to assess whether baseline FVI moderated the association between depressive symptoms and smoking status cross-sectionally and as a predictor of smoking cessation longitudinally at 4-year follow-up.

Results: Cross-sectionally, at lower levels of FVI (< 4.9 times/day) there was a significant association between smoking and depressive symptoms (p < .05), but not at higher levels of FVI (≥ 4.9 times/day; p > .05). Longitudinally, there was an inverse association between depressive symptoms and quitting smoking at FVI < 1.2 times/day (p < .05), but there was not a significant association at FVI ≥ 1.2 times/day (p ≥ .05).

Conclusions: FVI moderated the association between depressive symptoms and cigarette smoking cross-sectionally and longitudinally. The cross-sectional findings might be partially explained by the longitudinal findings paired with prior research; there might be fewer smokers with high FVI because depressive symptoms are removed as an impediment to cessation. Further experimental research is warranted to test the efficacy of increased FVI as an adjunct to smoking cessation with a possible mechanism of action being reduced depressive symptoms during quit attempts.

Bibliography Citation
Haibach, Jeffrey P., Gregory G. Homish, R. Lorraine Collins, Christine B. Ambrosone and Gary A. Giovino. "Fruit and Vegetable Intake as a Moderator of the Association Between Depressive Symptoms and Cigarette Smoking." Substance Abuse 37,4 (2016): 571-578.