scholarly journals An Application of the Complier Average Causal Effect Analysis to Examine the Effects of a Family Intervention in Reducing Illicit Drug Use among High-Risk Hispanic Adolescents

2014 ◽  
Vol 53 (2) ◽  
pp. 336-347 ◽  
Author(s):  
Shi Huang ◽  
David Cordova ◽  
Yannine Estrada ◽  
Ahnalee M. Brincks ◽  
Lila S. Asfour ◽  
...  
2020 ◽  
Vol 24 (02) ◽  
pp. 54-55
Author(s):  
Arne Vielitz

Schreijenberg M, Lin CC, McLachlan AJ et al. Paracetamol is Ineffective for Acute Low Back Pain even for Patients Who Comply with Treatment: Complier Average Causal Effect Analysis of a Randomized Controlled Trial. Pain 2019; 160: 2848–2854. doi: 10.1097/j.pain.0000000000001685


Author(s):  
Kieran S O’Brien ◽  
Ahmed M Arzika ◽  
Ramatou Maliki ◽  
Abdou Amza ◽  
Farouk Manzo ◽  
...  

Abstract Background Biannual azithromycin distribution to children 1–59 months old reduced all-cause mortality by 18% [incidence rate ratio (IRR) 0.82, 95% confidence interval (CI): 0.74, 0.90] in an intention-to-treat analysis of a randomized controlled trial in Niger. Estimation of the effect in compliance-related subgroups can support decision making around implementation of this intervention in programmatic settings. Methods The cluster-randomized, placebo-controlled design of the original trial enabled unbiased estimation of the effect of azithromycin on mortality rates in two subgroups: (i) treated children (complier average causal effect analysis); and (ii) untreated children (spillover effect analysis), using negative binomial regression. Results In Niger, 594 eligible communities were randomized to biannual azithromycin or placebo distribution and were followed from December 2014 to August 2017, with a mean treatment coverage of 90% [standard deviation (SD) 10%] in both arms. Subgroup analyses included 2581 deaths among treated children and 245 deaths among untreated children. Among treated children, the incidence rate ratio comparing mortality in azithromycin communities to placebo communities was 0.80 (95% CI: 0.72, 0.88), with mortality rates (deaths per 1000 person-years at risk) of 16.6 in azithromycin communities and 20.9 in placebo communities. Among untreated children, the incidence rate ratio was 0.91 (95% CI: 0.69, 1.21), with rates of 33.6 in azithromycin communities and 34.4 in placebo communities. Conclusions As expected, this analysis suggested similar efficacy among treated children compared with the intention-to-treat analysis. Though the results were consistent with a small spillover benefit to untreated children, this trial was underpowered to detect spillovers.


2020 ◽  
Vol 209 ◽  
pp. 107908 ◽  
Author(s):  
Thiago S. Torres ◽  
Leonardo S. Bastos ◽  
Luciana Kamel ◽  
Daniel R.B. Bezerra ◽  
Nilo M. Fernandes ◽  
...  

2013 ◽  
Vol 132 (1-2) ◽  
pp. 165-171 ◽  
Author(s):  
Carolyn F. Wong ◽  
Karol Silva ◽  
Aleksandar Kecojevic ◽  
Sheree M. Schrager ◽  
Jennifer Jackson Bloom ◽  
...  

1996 ◽  
Vol 24 (1) ◽  
pp. 21-40 ◽  
Author(s):  
Elizabeth L. Khoury ◽  
George J. Warheit ◽  
Rick S. Zimmerman ◽  
William A. Vega ◽  
Andres G. Gil

2019 ◽  
pp. 1-4
Author(s):  
Adriana Modesto ◽  
Kristen Pelczar ◽  
Deborah Studen-Pavlovich ◽  
Aaron M. Valasek ◽  
Zachary Mills ◽  
...  

Aim: The objective of the study was to investigate if there was a relationship between high risk behaviors among adolescents and orofacial trauma. Material and Methods: The study used a cross-sectional retrospective design with data collected from electronic health records of over 4,000 patients treated in the Department of Pediatric Dentistry at the University of Pittsburgh School of Dental Medicine from May 2009 through September 2013. This study was approved by the University of Pittsburgh Institutional Review Board. Risk factors for trauma were obtained from each patient’s medical and social history and included tobacco, alcohol and illicit drug use, tattoos, piercings, and mouthguard use during sports. Outcome measures used were history of broken bones or orofacial trauma. The odds ratios (OR) and 95% confidence intervals (CI) of each risk factor in increasing risk for trauma outcomes were calculated. Chi-square tests were also performed with an alpha of 0.05. Results and Conclusions: A total of 2,609 patients were included in this study. Males (N=1,340) had statistically more often orofacial trauma than females, and were statistically more often exposed to all risk factors (tobacco, alcohol and illicit drug use, tattoos, and physical altercations) than females with the exception of using piercings in body parts other than the ears and not wearing mouthguard for sports. Wearing mouthguard for sports decreased in 50% the risk of orofacial trauma (OR=0.53; 95% CI 0.42-0.68; p=0.00000001). Tobacco use and physical altercations increased the chance of broken bone, fractured tooth, and orofacial trauma in 2-fold (smoking, OR=1.85-2.28, 95% CI 1.3-2.96; physical altercations, OR=1.9-2.34; p=0.0005). Drinking and using illicit drugs increased the risk of broken bone (OR=1.9, 95% CI 1.37- 2.64; p=0.0001). Use of mouthguards for sports dramatically reduced the risk of orofacial trauma. Tobacco, alcohol and illicit drug use, and getting into physical altercations increased the risk of orofacial trauma.


1989 ◽  
Vol 4 (2) ◽  
pp. 121-138 ◽  
Author(s):  
Richard Dembo ◽  
Linda Williams ◽  
Lawrence La Voie ◽  
Estrellita Berry ◽  
Alan Getreu ◽  
...  

Mounting evidence of serious adverse consequences of childhood physical and sexual abuse has important implications for public health officials and care providers. Given the potential impact on social policy of this area of inquiry, programmatic research is needed for the validation of theoretical models across populations and over time. This study, based on a sample of high-risk youths, replicates a structural model that specified the influence of child physical and sexual abuse on self-derogation and drug use. Results suggest that for male and female youths, physical abuse and sexual victimization had a direct effect on self-derogation and illicit drug use, and an indirect effect on drug use that was mediated by self-derogation. Moreover, structural coefficients for the model were found to be identical across gender. Subsequent analyses demonstrated the equivalence of the structural model of child physical and sexual abuse on drug use across two study cohorts. Implications for the identification and treatment of youths in high-risk groups are discussed.


2018 ◽  
Vol 10 ◽  
pp. 1-8 ◽  
Author(s):  
Thomas Carmody ◽  
Tracy L. Greer ◽  
Robrina Walker ◽  
Chad D. Rethorst ◽  
Madhukar H. Trivedi

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