Stress, Depression and Quit Attempt Outcomes among Unmotivated Smokers.

INTRODUCTION: Stress and depressive symptoms have been linked to a reduced likelihood of sustaining smoking cessation. Because stress and depressive symptoms may negatively affect motivation to quit, stress and depression may also be important for whether or not smokers make a quit attempt. OBJECTIVE: To examine the relationship between perceived stress and depressive symptoms and initiating a quit attempt in a smoking cessation induction trial. METHODS: We conducted a secondary analysis of existing data from a randomized clinical trial (N = 255) comparing motivational interviewing to health education and brief advice for smoking cessation induction in smokers with low motivation to quit. RESULTS: We observed positive associations between baseline predictors and quit attempts at week 12 (r = 0.192, p < 0.01 for depressive symptoms and r = 0.136, p < 0.05 for perceived stress). Logistic regression models revealed similar significant positive associations between baseline perceived stress and baseline depressive symptoms and making a quit attempt by week 12 (OR = 1.5, CI:1.03, 2.19 and OR = 1.03, 95% CI: 1.01, 1.06; respectively). CONCLUSION: Unexpectedly, this study found generally small but consistently positive associations between baseline depressive symptoms and baseline perceived stress and making a quit attempt by week 12. The results can be viewed as encouraging in that interventions to encourage quit attempts do not appear counter-productive for individuals higher in stress and depressive symptoms, but these patients very likely will need additional supports to sustain abstinence.

Implicit Attitudes and Smoking Behavior in a Smoking Cessation Induction Trial.

INTRODUCTION: Although studies have suggested that implicit attitudes may predict smoking-related decisions, evidence that changes in implicit attitudes toward smoking are related to changes in smoking behavior is lacking. Using data from a trial comparing interventions to induce quit attempts among unmotivated smokers, this study examined whether changes in implicit attitudes were associated with quit attempts and cessation after controlling for explicit motivation. METHODS: Daily smokers recruited from the community completed measures of implicit attitudes (Implicit Association Test) and explicit measure of motivation to smoke at baseline, mid-intervention (week 12 [W12]) and follow-up (week 26 [W26]). Quit attempts and cessation were assessed at follow-up, and cessation was biochemically verified. RESULTS: As hypothesized, Implicit Association Test scores became more negative from baseline to W12, a change that was sustained at follow-up. Logistic regression analyses in which implicit attitudes were used to predict smoking outcomes revealed that negative changes in implicit attitudes from baseline to W12 and from baseline to W26 were significantly related to quit attempts (OR = 0.71, 95% CI [0.52, 0.97], p < .05 for both) independent of explicit motivation. Negative changes in implicit attitudes from baseline to W26 were significantly related to cessation (OR = 0.50, 95% CI [0.25, 1.00], p < .05). CONCLUSIONS: Negative changes in implicit attitudes were associated with positive changes in smoking behavior independent of explicit motivation. This result indicates that smoking cessation interventions may be enhanced by incorporating strategies to change implicit attitudes, and that changes in implicit attitudes are also potentially important intervention outcomes. IMPLICATIONS: Smoking cessation interventions may be improved by going beyond the current focus on explicit psychological constructs and targeting automatic cognitive processes such as implicit attitudes. The results are encouragement to examine how best to manipulate smokers' implicit attitudes as well as to determine the effect on their smoking behavior.

Differential mechanisms of change in motivational interviewing versus health education for smoking cessation induction.

Objective: To determine if Motivational Interviewing (MI) versus health education (HE) elicited different types of client language and whether these differences were associated with outcomes in a randomized clinical trial (RCT) for cessation induction among people who smoke with low motivation to quit. Methods: A secondary data analysis was conducted using data from the MI and HE arms of a trial in which people who smoke (N = 202) with low desire to quit were randomly assigned to four sessions of MI, HE or brief advice. Mediation analyses examined two types of client language: change talk (CT) and a novel form of client speech called "learning talk" (LT). Outcomes were assessed at baseline, 3 and 6 months. Results: With HE as the reference group, MI resulted in greater CT (OR = 3.0, 95% CI: 1.7-5.5) which was associated with better outcomes (average d = .34, SD = .13) and HE resulted in greater LT (OR = .05, 95% CI: .02-.10) which was also associated with better outcomes (average d = .42, SD = .08). Indirect parallel mediation effects on quit attempts were significant for both MI-CT (OR = 1.4, 95% CI: 1.1-1.7) and HE-LT (OR = .4, 95% CI: .2-.7). Conclusions: MI and HE were both efficacious via different pathways to change, confirming the utility of MI in this RCT as well as highlighting the potential of HE based on the "5R's" for smoking cessation. These findings emphasize the value of exploring theorized mechanisms of action of interventions evaluated in RCTs. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Clinical Efficacy of Jump Training Augmented With Body Weight Support After ACL Reconstruction: A Randomized Controlled Trial.

BACKGROUND: Limited knee flexion and increased muscle co-contraction during jump landing are believed to diminish outcomes after anterior cruciate ligament (ACL) reconstruction. The efficacy of jump training to improve patients' mechanical and neuromuscular deficits is understudied. HYPOTHESIS: Jump training will improve functional, mechanical, and neuromuscular outcomes and higher repetition training augmented by body weight support will result in better retention of gains. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: Thirty athletes (18 months after surgery) were screened, and 19 with mechanical deficits and limited clinical outcomes were enrolled in the trial. Testing included the International Knee Documentation Committee (IKDC) questionnaire, leg landing mechanics via motion analysis, knee joint effusion using a stroke test, and a surface electromyography-generated co-contraction index during a single-legged landing. Participants were randomly assigned to 1 of 2 groups: jump training with normal body weight (JTBW) and high-repetition jump training with body weight support (JTBWS). Knee effusion grading throughout training was used to assess joint tolerance. Changes in outcomes over time were analyzed with mixed-effects modeling. Immediate outcomes were compared with retention testing at 8 weeks after training by use of 2-way analyses of variance with effects of time and group. RESULTS: Significant effects of time were found during the training phase for all outcome measures, but no effects of group or sex were found. IKDC score (pooled; mean ± SD) increased from 76 ± 12 to 87 ± 8 ( P < .001). Knee flexion during single-legged landing increased from 57° ± 11° to 73° ± 9° ( P < .001). Average co-contraction index decreased from 37 ± 15 to 19 ± 6 ( P < .001). All measures were retained over the retention period in both groups. The relative risk of knee effusion of the JTBW group versus the JTBWS group was 4.2 (95% CI, 2.25-7.71; P < .001). CONCLUSION: Jump training mitigated some risk factors for second injury and osteoarthritis in patients after ACL reconstruction. Training made lasting improvements in physical function measures as well as mechanical and neuromuscular coordination deficits. Higher repetitions used with body weight support did not improve retention but substantially reduced risk for effusion. CLINICAL RELEVANCE: Jump training is an efficacious intervention for athletes with poor outcomes after ACL reconstruction, and training with body weight support lessens the risk for excessive joint stress during practice. Registration: NCT02148172 ( ClinicalTrials.gov identifier).

Progression to established smoking: the influence of tobacco marketing.

BACKGROUND: Recent studies have shown that tobacco advertising leads to the onset of smoking among adolescents. However, much more still remains to be learned about the impact of tobacco advertising in the later transitions, mainly from experimentation to established smoking. In this study, we focused on the influence of tobacco advertising and promotions on the transition from experimentation to established smoking. METHODS: Data were derived from a longitudinal survey of adolescents in California. Adolescents who were classified as experimenters at baseline were included in the analyses (N=965). Receptivity to tobacco advertising and promotions refers to the development of a positive affective response to the communication (e.g., having a favorite tobacco advertisement or being willing to use a promotional item). RESULTS: Approximately 32% of adolescents who were experimenters at baseline in 1993, progressed to established smoking by follow-up in 1996. Progression was higher among Caucasian (37.3%) than Hispanic (21.9%) or African-American (17.6%) adolescents. Adolescents who perceived that most of their peers smoked, had poor relationships with family members, and were exposed to smoking friends and family members were more likely to progress to established smoking at follow-up in 1996. In addition, adolescents who were receptive to advertising and believed that they could quit anytime were more likely to progress to established smoking than those who did not think they could quit anytime. Adolescents who were willing to use a promotional item and who believed that they could quit anytime had the highest rate of progression to established smoking (52%). CONCLUSIONS: This study provides evidence that receptivity to tobacco advertising and promotions is an important factor in progressing from experimentation to established smoking among adolescents. Because perceived ability to quit made adolescents more likely to progress, counter-tobacco marketing campaigns should incorporate messages about addiction and difficulties associated with quitting.

Smoking cessation services in U.S. methadone maintenance facilities.

OBJECTIVES: Most patients in drug treatment smoke cigarettes. This study established the prevalence and types of nicotine dependence services offered in methadone and other opioid treatment clinics in the United States. METHODS: A cross-sectional survey was conducted of all outpatient methadone maintenance clinics in the United States. One person in a leadership position from each clinic was surveyed. The 20-minute survey was collected by phone, fax, or mail, according to responder preference. RESULTS: Fifty-nine percent of the clinics (408 of 697 clinics) responded. The sample was very similar to all outpatient methadone maintenance clinics in the United States in size, region, and ownership. In the 30 days before the survey, respondents reported that their clinics provided the following services to at least one patient: 73 percent provided brief advice to quit, 18 percent offered individual or group smoking cessation counseling, and 12 percent prescribed nicotine replacement therapy. However, the services were provided to very few patients. Clinics with written guidelines that required them to address smoking were much more likely to provide services than those without guidelines. Private for-profit clinics were significantly less likely than public or private nonprofit clinics to treat nicotine dependence. Most respondents (77 percent) reported that their staff were interested in receiving training in nicotine dependence treatment, and more than half (56 percent) had at least one staff member ("champion") with a strong interest in treating nicotine dependence. CONCLUSIONS: A vast majority of methadone patients smoke; yet in the 30 days before the survey only one out of three facilities provided counseling to any patients and only one out of ten prescribed nicotine replacement therapy to any patients. A dual strategy of requiring clinics to provide comprehensive nicotine dependence services and training staff to provide these services may provide the incentive and support necessary for the widespread adoption of treatment for nicotine dependence in methadone facilities.

Prevalence and correlates of smoking status among veterans affairs primary care patients with probable major depressive disorder.

In an attempt to guide planning and optimize outcomes for population-specific smoking cessation efforts, the present study examined smoking prevalence and the demographic, clinical and psychosocial characteristics associated with smoking among a sample of Veterans Affairs primary care patients with probable major depression. Survey data were collected between 2003 and 2004 from 761 patients with probable major depression who attended one of 10 geographically dispersed VA primary care clinics. Current smoking prevalence was 39.8%. Relative to nonsmokers with probable major depression, bivariate comparisons revealed that current smokers had higher depression severity, drank more heavily, and were more likely to have comorbid PTSD. Smokers with probable major depression were also more likely than nonsmokers with probable major depression to have missed a health care appointment and to have missed medication doses in the previous 5months. Smokers were more amenable than non-smokers to depression treatment and diagnosis, and they reported more frequent visits to a mental health specialist and less social support. Alcohol abuse and low levels of social support were significant concurrent predictors of smoking status in controlled multivariable logistic regression. In conclusion, smoking prevalence was high among primary care patients with probable major depression, and these smokers reported a range of psychiatric and psychosocial characteristics with potential to complicate systems-level smoking cessation interventions.

Smoking, weight loss intention and obesity-promoting behaviors in college students.

OBJECTIVE: To examine whether college smoking was associated with trying to lose weight and other weight-related behaviors. METHODS: We surveyed 300 students at the University of Kansas about smoking (ever, current, and amount), weight loss intention (y/n), weight-related attitudes, and eating and exercise behavior. Weight, height, and body fat were measured. RESULTS: About half the students (49%) self-identified as having ever smoked while 53 (17.6%) self-identified as current smokers. After controlling for sex, age, and ethnicity, ever smoking was not related to weight loss intention but was associated with greater pressure to maintain a healthy weight (p = 0.05), and having engaged in mild exercise on more days in the previous year (p = 0.05). Compared to nonsmokers, current smokers ate more at restaurants serving high calorie foods (p < 0.05) and ate more frequently in front of the TV (p < 0.01). Amount smoked was related to diminished use of exercise facilities (p = 0.03) and more frequent eating at restaurants serving high calorie foods (p < 0.05) and in front of the TV (p = 0.01). CONCLUSIONS: Current smoking among college students was related to weight loss intention. Despite wanting to lose weight, current smoking was concomitant with obesity-promoting behaviors such as eating higher calorie foods and eating in front of the TV. College-based interventions to prevent smoking initiation or promote smoking cessation should include a focus on healthy eating, exercise and healthful ways to lose or maintain weight.