Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Karma McKelvey is active.

Publication


Featured researches published by Karma McKelvey.


European Journal of Public Health | 2013

Time trends of cigarette and waterpipe smoking among a cohort of school children in Irbid, Jordan, 2008-11.

Karma McKelvey; Meredith Wilcox; Purnima Madhivanan; Fawaz Mzayek; Yousef Khader; Wasim Maziak

BACKGROUND Coordinated high-impact interventions and community-level changes in smoking behaviour norms effectively reduced prevalence of smoking among youth in many developed countries. Smoking trends among Jordanian adolescents are likely different than their Western counterparts and must be understood in the context of their daily lives to tailor interventions specifically for adolescents in this setting. METHODS Between 2008 and 2011, a school-based longitudinal study was conducted in Irbid, Jordan. All seventh-grade students in 19 randomly selected schools (of 60) were surveyed annually for 4 years. Outcomes of interest were time trends in smoking behaviour, age at initiation and change in frequency of smoking. RESULTS Among 1781 participants, baseline prevalence of current smoking (cigarettes or waterpipe) for boys was 22.9% and 8.7% for girls. Prevalence of ever-smoking and current any smoking, cigarette smoking, waterpipe smoking and dual cigarette/waterpipe smoking was significantly higher in boys than girls each year (P < 0.001). Smoking prevalence increased every year after year 2 for current smoking (P < 0.05) across all methods (any, cigarette, waterpipe and dual). At all time points for both boys and girls, prevalence of waterpipe smoking was higher than that of cigarette smoking (P < 0.001). CONCLUSION This study shows intensive smoking patterns at early ages among Jordanian youth in Irbid, characterized by a predominance of waterpipe smoking and steeper age-related increase in cigarette smoking. It also points to the possibility of waterpipe being the favourite method for introducing youth to tobacco, as well as being a vehicle for tobacco dependence and cigarette smoking.


Drug and Alcohol Dependence | 2014

Determinants of waterpipe smoking initiation among school children in Irbid, Jordan: A 4-year longitudinal analysis

Karma McKelvey; Jennifer Attonito; Purnima Madhivanan; Rana Jaber; Qilong Yi; Fawaz Mzayek; Wasim Maziak

OBJECTIVE Guided by the Attitude-Social influence-self Efficacy (ASE) theory, this study identified predictors of waterpipe (WP) smoking initiation in a WP naïve cohort of Jordanian school children. METHODS A school-based cohort of all 7th grade students (N=1781) in 19 of 60 schools in Irbid, Jordan, was followed from 2008 to 2011. Generalized linear mixed modeling was used to examine predictors of WP initiation among WP-naïve students (N=1243). RESULTS During the 3-year study, WP initiation was documented in 39% of boys and 28% of girls. Prior cigarette smoking (boys: odds ratio 7.41; 95% confidence interval 4.05-12.92 and girls: 8.48; 4.34-16.56) and low WP refusal self-efficacy (boys: 26.67; 13.80-51.53 and girls: 11.49; 6.42-20.55) were strongly predictive of initiating WP. Boys were also more likely to initiate WP smoking if they had siblings (2.30; 1.14-4.64) or teachers (2.07; 1.12-3.84) who smoked and girls if they had friends (2.96; 1.59-5.54) who smoked. CONCLUSION There is a sizeable incidence of WP initiation among students of both sexes. These findings will help in designing culturally responsive prevention interventions against WP smoking. Gender-specific factors, refusal skills, and cigarette smoking need to be important components of such initiatives.


Public Health Reports | 2015

Sex and racial/ethnic differences in premature mortality due to HIV: Florida, 2000–2009

Mary Jo Trepka; Théophile Niyonsenga; Kristopher P. Fennie; Karma McKelvey; Spencer Lieb; Lorene M. Maddox

Objective. This study aimed to characterize premature mortality among people diagnosed with HIV infection from 2000 to 2009 in Florida, by sex and race/ethnicity, to estimate differences in premature mortality that could be prevented by linkage to HIV care and treatment. Methods. Florida surveillance data for HIV diagnoses (excluding concurrent AIDS diagnoses) were linked with vital records data to ascertain deaths through 2011. Years of potential life lost (YPLL) were obtained from the expected number of remaining years of life at a given age from the U.S. sex-specific period life tables. Results. Among 41,565 people diagnosed with HIV infection during the study period, 5,249 died, and 2,563 (48.8%) deaths were due to HIV/AIDS. Age-standardized YPLL (aYPLL) due to HIV/AIDS per 1,000 person-years was significantly higher for females than males (372.6, 95% confidence interval [CI] 349.8, 396.2 vs. 295.2, 95% CI 278.4, 312.5); for non-Hispanic black (NHB) females than non-Hispanic white (NHW) and Hispanic females (388.2, 95% CI 360.7, 416.9; 294.3, 95% CI 239.8, 354.9; and 295.0, 95% CI 242.9, 352.5, respectively); and for NHB males compared with NHW and Hispanic males (378.7, 95% CI 353.7, 404.7; 210.6, 95% CI 174.3, 250.8; and 240.9, 95% CI 204.8, 280.2, respectively). In multilevel modeling controlling for individual factors, NHB race was associated with YPLL due to HIV/AIDS for women (p=0.04) and men (p<0.001). Conclusion. Among people diagnosed with HIV infection, females and NHB people had a disproportionately high premature mortality from HIV/AIDS, suggesting the need for enhanced efforts to improve linkage to and retention in care and medication adherence for these groups.


Tobacco Control | 2018

Implications and challenges for implementation of the FDA’s final deeming rule for waterpipe tobacco

Erin L. Sutfin; Eric K. Soule; Karma McKelvey; Desmond Jenson

For the first time, the Food and Drug Administration’s (FDAs) Center for Tobacco Products now has regulatory authority over all tobacco products, including waterpipe tobacco. In the rule expanding its authority to cover all tobacco products, the FDA uses largely a one-size-fits-all approach. However, several aspects of waterpipe tobacco smoking make it unique from other tobacco products, which may require more specific, tailored rules. This paper describes the distinct features of waterpipe tobacco products and accessories, and identifies unique challenges to the current regulation posed by this form of tobacco use. Additionally, we highlight the need for further research-generated evidence to support additional rulemaking.


Tobacco Control | 2018

Heated tobacco products likely appeal to adolescents and young adults

Karma McKelvey; Lucy Popova; Minji Kim; Benjamin W. Chaffee; Maya Vijayaraghavan; Pamela M. Ling; Bonnie L. Halpern-Felsher

Background Beginning in the 1960s in the USA and globally since 1998, tobacco companies have beenaggressively promoting heated tobacco products (HTP). In 2016, Philip Morris International (PMI) applied to the US Food and Drug Administration (FDA) seeking authorisation to market their IQOS HTP system and flavoured ‘HeatSticks’ in the USA as a modified-risk tobacco product (MRTP). Methods We systematically evaluated the publicly available data PMI submitted to FDA in its MRTP application to determine whether PMI’s IQOS product meets the US Tobacco Control Act’s standard for MRTP claims. We examined whether PMI provided sufficient data showing tobacco users will not initiate with IQOS, that youth will not misperceive the MRTP-related claims being made concerning IQOS, and how youth perceive health risks associated with IQOS. Results PMI’s own studies failed to provide evidence that youth, including non-users and former users, will not find IQOS appealing, will not initiate use of IQOS and will not perceive these products as risk-free. Further, PMI did not refer to independent studies conducted among adolescents which could influence their conclusions. Finally, their studies suffered from design and implementation flaws and cannot be relied on to support the proffered claims. Conclusion PMI’s own data and available evidence from scientific studies conducted independent of the tobacco industry regarding how novel tobacco products are currently being marketed suggest that introduction of IQOS will result in adolescent and young adult non-users initiating tobacco use with IQOS and could also increase poly-use of IQOS along with other tobacco products.


JMIR Formative Research | 2018

Conversation Within a Facebook Smoking Cessation Intervention Trial For Young Adults (Tobacco Status Project): Qualitative Analysis

Karma McKelvey; Danielle E. Ramo

Background Smoking cessation interventions delivered through social media have the potential to engage young people in behavior change. Objective The aim of this study was to describe participant-posted messages in a Facebook smoking cessation intervention for young adults to discern support for behavior change. Methods We qualitatively analyzed data from the treatment arm of a randomized trial testing the efficacy of the Tobacco Status Project Facebook intervention. Young adults (N=138) aged 18-25 years (female: 81/138, 58.7%; white: 101/138, 73.2%; mean age 21 years) were recruited using Facebook and placed into one of the 15 secret Facebook groups based on readiness-to-quit smoking. Messages posted to groups for 90 consecutive days were tailored to readiness-to-quit: Not Ready (46/138, 33.3%), Thinking (66/138, 47.8%), and Getting Ready (26/138, 18.8%). Groups were randomized to receive up to US


American Journal of Health Promotion | 2018

Older African American Homeless-Experienced Smokers' Attitudes Toward Tobacco Control Policies-Results from the HOPE HOME Study

Maya Vijayaraghavan; Pamela Olsen; John Weeks; Karma McKelvey; Claudia Ponath; Margot B. Kushel

90 for posting or no incentive. Two independent coders conducted open coding of user posts. We considered content by readiness-to-quit group and incentive condition. Results There were 4 dominant themes across all groups: coping skills, friends and family, motivation to quit, and benefits of quitting. The dominant themes in Not Ready groups were friends and family (incentive) and motivation to quit (no incentive), whereas coping skills was the dominant theme in Thinking and Getting Ready groups. The expression of themes varied by readiness-to-quit group but not by incentive condition. Conclusions Intervention messages tailored to readiness-to-quit appear useful in eliciting the desired responses from young adult smokers, with limited influence by monetary incentive. Trial Registration ClinicalTrials.gov NCT02207036; https://clinicaltrials.gov/ct2/show/NCT02207036 (Archived by WebCite at http://www.webcitation.org/722XAEAAz)


System Dynamics Review | 2014

Public and health professionals' misconceptions about the dynamics of body weight gain/loss

Tarek K. Abdel-Hamid; Felix Ankel; Michele Battle-Fisher; Bryan Gibson; Gilberto González-Parra; Mohammad S. Jalali; Kirsikka Kaipainen; Nishan S. Kalupahana; Ozge Karanfil; Achla Marathe; Brian C. Martinson; Karma McKelvey; Suptendra Nath Sarbadhikari; Stephen Pintauro; Patrick Poucheret; Nicolaas P. Pronk; Ying Qian; Edward Sazonov; Kim van Oorschot; Akshay Venkitasubramanian; Philip Murphy

Purpose: To examine attitudes toward tobacco control policies among older African American homeless-experienced smokers. Approach: A qualitative study. Setting: Oakland, California. Participants: Twenty-two African American older homeless-experienced smokers who were part of a longitudinal study on health and health-related outcomes (Health Outcomes of People Experiencing Homelessness in Older Middle Age Study). Method: We conducted in-depth, semistructured interviews with each participant to explore beliefs and attitudes toward tobacco use and cessation, barriers to smoking cessation, and attitudes toward current tobacco control strategies including raising cigarette prices, smoke-free policies, and graphic warning labels. We used a grounded theory approach to analyze the transcripts. Results: Community social norms supportive of cigarette smoking and co-use of tobacco with other illicit substances were strong motivators of initiation and maintenance of tobacco use. Self-reported barriers to cessation included nicotine dependence, the experience of being homeless, fatalistic attitudes toward smoking cessation, substance use, and exposure to tobacco industry marketing. While participants were cognizant of current tobacco control policies and interventions for cessation, they felt that they were not specific enough for African Americans experiencing homelessness. Participants expressed strong support for strategies that de-normalized tobacco use and advertised the harmful effects of tobacco. Conclusion: Older African American homeless-experienced smokers face significant barriers to smoking cessation. Interventions that advertise the harmful effects of tobacco may be effective in stimulating smoking cessation among this population.


Nicotine & Tobacco Research | 2015

Determinants of cigarette smoking initiation in Jordanian schoolchildren: Longitudinal analysis

Karma McKelvey; Jennifer Attonito; Purnima Madhivanan; Qilong Yi; Fawaz Mzayek; Wasim Maziak


Addictive Behaviors | 2017

Impact of quitting smoking and smoking cessation treatment on substance use outcomes: An updated and narrative review.

Karma McKelvey; Johannes Thrul; Danielle E. Ramo

Collaboration


Dive into the Karma McKelvey's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Purnima Madhivanan

Florida International University

View shared research outputs
Top Co-Authors

Avatar

Wasim Maziak

Florida International University

View shared research outputs
Top Co-Authors

Avatar

Jennifer Attonito

Florida International University

View shared research outputs
Top Co-Authors

Avatar

Kevin Delucchi

University of California

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge