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Background: Anti-industry sentiments are protective against smoking, but the relationship between industry beliefs and e-cigarette use remains unknown., Methods: A nationally representative survey of U.S. youth and young adults in Fall 2019 (n = 9554) assessed knowledge that e-cigarette and cigarette companies are the same, belief that e-cigarette companies lie about harm, and belief that tobacco companies want young people to vape. Weighted multivariate logistic regression models estimated odds of current use and susceptibility to use (among ever and never users) by industry knowledge and beliefs. Additional models assess association between industry knowledge and industry beliefs. All models controlled for harm perceptions, friend use, sensation seeking, combustible use, and demographic characteristics., Results: Disagreement that companies lie about harm (adjusted odds ratio (aOR)= 1.94, 95% CI: 1.43-2.63) and companies want young people to vape (aOR=1.72, 95% CI: 1.36-2.17) was associated with increased odds of current use. Belief that e-cigarette and cigarette companies were different entities was associated with increased odds of current use (aOR=1.45, 95% CI: 1.12-1.88). Disagreement or not knowing that companies are the same was associated with lower odds of believing companies lie about harm (disagreement aOR=0.37, 95% CI: 0.27-0.52; don't know aOR=0.47, 95% CI: 0.35-0.65) and belief that companies want young people to vape (disagreement aOR=0.36, 95% CI: 0.28-0.46; don't know aOR=0.54, 95% CI: 0.42-0.68)., Conclusion: Similar to cigarettes, e-cigarette industry beliefs were associated with current use among young people. Highlighting e-cigarettes' connection to Big Tobacco may be an important strategy to prevent youth and young adult e-cigarette use., (Copyright © 2022. Published by Elsevier B.V.)

Purpose: Social media use is pervasive among young adults, and different sites have different purposes, features, and audiences. This study identified classes of young adults based on what combination of sites they use and how frequently, and compared their health risk factors and behaviors., Methods: Latent profile models were developed based on frequency of using 10 sites from a national sample of young adults aged 18-24 years (n = 1,062). Bivariate analyses and multivariable regressions examined the relationship between class membership and alcohol, tobacco, and other drug (ATOD) use, and symptoms of depression and anxiety., Results: The optimal model identified five classes: Low Users (7.9%), High Users (63.1%), Professional Users - high use of LinkedIn (10.1%), Creative Users - high use of Vine and Tumblr (11.5%), and Mainstream Users - high use of Facebook and YouTube (7.4%). Classes differed significantly on ATOD use and depressive symptoms. Compared to High Users, Creative Users had higher odds of using most substances and lower odds of depressive symptoms, Mainstream Users had higher odds of substances used socially (alcohol and hookah), Professional Users had higher odds of using alcohol, cigarettes, and cigars, and Low Users had higher odds of using other drugs (e.g., cocaine and heroin)., Conclusions: A young adult's social media site use profile is associated with ATOD use and depressive symptoms. Use and co-use of certain sites may influence the volume and nature of ATOD-related content and norms young adults experience in social media. Targeting interventions to sites selected based on use patterns associated with each health risk may be effective., (Copyright © 2018 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.)

Objective: We conducted an online randomized experiment to evaluate the efficacy of messages from the Parents Speak Up National Campaign (PSUNC) to promote parent-child communication about sex., Methods: We randomly assigned a national sample of 1,969 mothers and fathers to treatment (PSUNC exposure) and control (no exposure) conditions. Mothers were further randomized into treatment and booster (additional messages) conditions to evaluate dose-response effects. Participants were surveyed at baseline, 4 weeks postexposure, and 6 months postexposure. We used multivariable logistic regression procedures in our analysis., Results: Treatment fathers were more likely than control fathers to initiate conversations about sex at 4 weeks, and treatment fathers and mothers were more likely than controls at 6 months to recommend that their children wait to have sex. Treatment fathers and mothers were far more likely than controls to use the campaign Web site. There was a dose-response effect for mothers' Web site use., Conclusions: Using new media methods, this study shows that PSUNC messages are efficacious in promoting parent-child communication about sex and abstinence. Future research should evaluate mechanisms and effectiveness in natural settings.

Background: Osteoporosis is common in patients with COPD. Previously we have reported that loss of fat-free mass (FFM), measured by dual X-ray absorptiometry (DXA) is associated with loss of bone mineral density (BMD). In addition, in patients with a low body mass index (BMI) and a low FFM, all had evidence of bone thinning, 50% having osteopenia and 50% osteoporosis. We explored the utility of different anthropometric measures in detecting osteoporosis in a community-based COPD population., Methods: Patients with confirmed COPD and not on long-term oral corticosteroids (n=58) performed spirometry. They underwent nutritional assessment by skinfold anthropometry, midarm circumference, calculation of both % ideal body weight (IBW) and BMI. All had DXA assessment of BMD., Results: A total of 58 COPD patients had anthropometric measurements taken, with a mean age of 66.8 (SD 8.7) years, 31 (58%) were male, with a forced expiratory volume in 1s (FEV(1)) of 54.17 (20.18)% predicted. Osteoporosis was present at either the hip or lumbar region in 14 patients (24%). The useful anthropometric measurements identifying those with osteoporosis were both % IBW and BMI. The adjusted odds ratio for %IBW was 0.93 (95% confidence interval (CI) 0.87, 0.99), p=0.016 and for BMI: 0.79 (0.64-0.98), p=0.03. The receiver operating characteristics (ROC) score for both was 0.88, indicating a good fit., Conclusion: Osteoporosis is common, even in patients with mild airways obstruction. Nutritional assessment, incorporating a calculation of their BMI or %IBW may confer an additional benefit in detecting those at risk of osteoporosis and guide referral for BMD measurement.

Achieving and maintaining wide-scale positive dietary change is a complex and formidable endeavor, given the current food environment. Moreover, for positive change to occur, nutrition messages should be communicated in a scientifically precise, yet practical and motivating manner. This challenge was the impetus for the organization of a 2-day workshop hosted by the National Cancer Institute (NCI) and the Division of Nutrition Research Coordination (DNRC), both of the National Institutes of Health (NIH). The conference included communication, nutrition, and behavioral scientists, market researchers, media advocates, journalists, and public policy experts. Discussions regarding communication efforts and the best methods to craft, deliver, and evaluate the impact of nutrition messages illustrated both the challenges and the opportunities we face. During the discussions, important recommendations for nutrition communicators and interventionists emerged, based on existing knowledge from the communications field, lessons learned thus far, and noted gaps in our knowledge.

Objective: To identify sociodemographic variables and beliefs about the causes of obesity associated with reported use of Nutrition Facts panel (NFP) information., Design/setting: Nationally representative, cross-sectional survey of 1139 adults. Data collection employed a single-stage, equal-probability sampling design with random-digit dialing across 50 states and the District of Columbia. Analysis sample consisted of 390 adults living with one or more children who reported making food purchasing decisions., Main Outcome Measure: Respondents provided self-reported information on their use of NFP information when making food purchasing decisions for their household., Analysis: Chi-square and analysis of variance (ANOVA) tests compared the analysis sample to the broader population. Logistic regression analyses identified the sociodemographic and beliefs about obesity variables related to NFP use., Results: Fifty-three percent of the sample reported using NFP information on a consistent basis. Females, those with more education, and those currently married were more likely to use NFP labels. The importance of knowledge in order to maintain healthy body weight was the only belief variable associated with use of NFP information., Implications for Research and Practice: Nutrition educators interested in changing dietary behaviors should begin by identifying levels of nutritional literacy and beliefs about the importance of nutrition to motivate use of NFP labels.

Background: Weight loss is associated with reduced survival in patients with cystic fibrosis (CF)., Objective: We hypothesized that some adult patients with a normal body mass index (BMI) have evidence of hidden fat-free mass (FFM) and bone mineral density (BMD) depletion that is linked to more severe disease., Design: Fat mass (FM), FFM, and BMD were determined by dual-energy x-ray absorptiometry (DXA) and by bioelectric impedance in 56 adults in clinically stable condition and 20 age-matched healthy subjects. FM index and FFM index (FFMI) [kilograms per meter squared] of the right arm, leg, and trunk (ratio to height squared) were calculated. Lung function, including the maximum inspiratory pressure (MIP) and sustained MIP (SMIP), physical activity, serum C-reactive protein (CRP) and the number of exacerbations in the previous year were recorded., Results: Patients had a lower total FFM than healthy subjects (p < 0.01), while FM was similar. Of the 56 patients, 30 patients had a normal BMI, of which 12 patients had a low FFM (hidden loss) by DXA. The right arm, leg, and trunk FFMI and BMD at hip sites were less in these patients than in those with a normal BMI and normal FFM (all p < 0.01). This group had a lower FEV(1), SMIP, more frequent exacerbations, and greater circulating CRP (all p < 0.05)., Conclusions: In adults with CF, apparent or hidden loss of FFM, rather than weight loss, was related to overall disease severity. Hidden depletion of FFM was associated with increased loss of BMD and systemic inflammatory activity.

A 14-y follow-up of 581 children who took part in a randomized controlled trial of the effect of a milk supplement on growth of children was conducted to investigate the supplement's effect on adult bone mineral content (BMC) and density (BMD). BMC and BMD of the nondominant forearm were measured by single-photon absorptiometry in 371 subjects (64%) aged 20-23 y, at a proximal site (shaft of radius and ulna) and at a distal site near the wrist. BMCs and BMDs tended to be higher in the intervention group (NS). Cross-sectionally, BMD was positively associated with body weight (P less than 0.01) in both sexes; inversely associated with alcohol consumption (P less than 0.05), and positively with manual occupation (NS) in men; positively associated with current intakes of calcium (P less than 0.05), vitamin D (P less than 0.01), and sports activity during adolescence (P less than 0.01), and inversely with parity (NS) in women. In multiple linear-regression analysis body weight and sports activity during adolescence were stronger determinants of female BMD than was diet.

Ten male volunteers were studied in a randomized, double-blind crossover trial. Each received ketorolac tromethamine 30 mg and morphine sulphate 10 mg i.m. at an interval of 2 weeks. After a standard radiolabelled meal, gastric emptying half-time (GE) and small intestinal transit time (SIT) were measured using a gamma camera. Small intestinal transit time was measured also from end-tidal breath hydrogen (ETH), and overall gastrointestinal motility by time to first flatus (TFF). Mean GE, SIT and TFF were significantly prolonged by morphine compared with ketorolac (P less than 0.03); ETH was prolonged also, but the difference was not significant. There were no significant correlations between SIT, ETH and TFF. Most subjects reported adverse effects after morphine, but only one after ketorolac.