scholarly journals Correction: The impact of reducing dietary aflatoxin exposure on child linear growth: a cluster randomized controlled trial in Kenya

2019 ◽  
Vol 4 (1) ◽  
pp. e000983corr1 ◽  
Keyword(s):  
Randomized Controlled Trial ◽  
Linear Growth ◽  
Controlled Trial ◽  
Cluster Randomized Controlled Trial ◽  
Randomized Controlled ◽  
Cluster Randomized ◽  
The Impact

scholarly journals Frequency of repositioning for preventing pressure ulcers in patients hospitalized in ICU: protocol of a cluster randomized controlled trial

BMC Nursing ◽  
2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Olga L. Cortés ◽  
Mauricio Herrera-Galindo ◽  
Juan Carlos Villar ◽  
Yudi A. Rojas ◽  
María del Pilar Paipa ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Critical Care ◽  
Pressure Ulcers ◽  
Controlled Trial ◽  
Cluster Randomized Controlled Trial ◽  
Control Group ◽  
Randomized Controlled ◽  
Link Type ◽  
Cluster Randomized ◽  
The Impact

Abstract Background Despite being considered preventable, ulcers due to pressure affect between 30 and 50% of patients at high and very high risk and susceptibility, especially those hospitalized under critical care. Despite a lack of evidence over the efficacy in prevention against ulcers due to pressure, hourly repositioning in critical care as an intervention is used with more or less frequency to alleviate pressure on patients’ tissues. This brings up the objective of our study, which is to evaluate the efficacy in prevention of ulcers due to pressure acquired during hospitalization, specifically regarding two frequency levels of repositioning or manual posture switching in adults hospitalized in different intensive care units in different Colombian hospitals. Methods A nurse-applied cluster randomized controlled trial of parallel groups (two branches), in which 22 eligible ICUs (each consisting of 150 patients), will be randomized to a high-frequency level repositioning intervention or to a conventional care (control group). Patients will be followed until their exit from each cluster. The primary result of this study is originated by regarding pressure ulcers using clusters (number of first ulcers per patient, at the early stage of progression, first one acquired after admission for 1000 days). The secondary results include evaluating the risk index on the patients’ level (Hazard ratio, 95% IC) and a description of repositioning complications. Two interim analyses will be performed through the course of this study. A statistical difference between the groups < 0.05 in the main outcome, the progression of ulcers due to pressure (best or worst outcome in the experimental group), will determine whether the study should be put to a halt/determine the termination of the study. Conclusion This study is innovative in its use of clusters to advance knowledge of the impact of repositioning as a prevention strategy against the appearance of ulcers caused by pressure in critical care patients. The resulting recommendations of this study can be used for future clinical practice guidelines in prevention and safety for patients at risk. Trial registration PENFUP phase-2 was Registered in Clinicaltrials.gov (NCT04604665) in October 2020.

scholarly journals Seeing is believing: the impact of body-worn cameras on court outcomes, a cluster-randomized controlled trial in Miami Beach

2021 ◽  
Author(s):  
Kevin Petersen ◽  
Alejandro Mouro ◽  
Donald Papy ◽  
Noel Castillo ◽  
Barak Ariel
Keyword(s):  
Domestic Violence ◽  
Randomized Controlled Trial ◽  
Police Officers ◽  
Negative Binomial ◽  
Controlled Trial ◽  
Cluster Randomized Controlled Trial ◽  
Randomized Controlled ◽  
Early Results ◽  
Cluster Randomized ◽  
The Impact

Abstract Objectives To assess the effects of BWCs on prosecutorial and court-related charge outcomes across multiple crime types, including domestic violence charges, crimes committed against police officers, and drug/alcohol charges. Methods A cluster-randomized controlled trial with 22 spatiotemporal police units assigned to BWCs and 17 assigned to control conditions. Data from the State Attorney’s Office were used to track convictions, adjudication withheld dispositions, and declined prosecutions for both experimental and control charges. A series of multilevel logistic and negative binomial regression models were used to estimate the effect of BWC footage on charge outcomes. Outcomes BWCs led to a significantly higher proportion of crimes against police officers resulting in convictions or adjudication withheld outcomes, and a significantly higher proportion of domestic violence charges resulting in convictions alone, compared to control charges. However, after the clustering effect was taken into account, only the effect of BWCs on crimes against police officers remained statistically significant. Conclusion These early results suggest that BWCs have significant evidentiary value that varies by crime type. BWCs may be best suited to capture evidence of crimes committed against police officers and potentially in domestic violence offenses as well.

scholarly journals Conditional cash transfer and/or lipid-based nutrient supplement targeting the first 1000 d of life increased attendance at preventive care services but did not improve linear growth in young children in rural Mali: results of a cluster-randomized controlled trial

2019 ◽  
Vol 110 (6) ◽  
pp. 1476-1490 ◽  
Author(s):  
Laura Adubra ◽  
Agnes Le Port ◽  
Yves Kameli ◽  
Sonia Fortin ◽  
Tanimoune Mahamadou ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Linear Growth ◽  
Controlled Trial ◽  
Conditional Cash Transfer ◽  
Cluster Randomized Controlled Trial ◽  
Growth Monitoring ◽  
Randomized Controlled ◽  
Nutrient Supplement ◽  
Intermediate Outcomes ◽  
Cluster Randomized

ABSTRACT Background In 2014, the World Food Programme added to an ongoing health and nutrition program named “Santé Nutritionnelle à Assise Communautaire dans la région de Kayes” (SNACK), the distribution of cash to mothers and/or lipid-based nutrient supplement (LNS) to children aged 6–23 mo, conditional upon attendance at community health centers (CHCs) during the first 1000 d of life. Objective We evaluated the additional impact of the distribution of cash and/or LNS on mean height-for-age z scores (HAZ; primary outcome), stunting (HAZ < −2), and on intermediate outcomes along the program impact pathways. Methods In a cluster-randomized controlled trial using a 2 × 2 factorial design, 76 CHCs were randomly assigned to deliver either SNACK, SNACK + Cash, SNACK + LNS, or SNACK + Cash + LNS. Cross-sectional surveys among 12- to 42-mo-old children and their mothers were conducted at baseline (2013, n = 5046) and at endline (2016, n = 5098). Results Factorial analysis showed no interaction between cash and LNS treatments for HAZ, but found an antagonistic interaction for stunting (OR: 1.55; 95% CI: 1.05, 2.31; P = 0.03). There were no impacts of the cash, LNS, or cash + LNS treatments, compared with the SNACK alone, on either HAZ or stunting (treatment × time interaction). There were significant impacts of the LNS and cash + LNS treatments on attendance at ≥1 growth monitoring (GM) session (OR: 3.95; 95% CI: 1.69, 9.24; OR: 3.90; 95% CI: 1.73, 8.81, respectively) and half the expected sessions (OR: 4.72; 95% CI: 1.47, 15.17; OR: 5.25; 95% CI: 1.82, 15.11, respectively), mothers’ knowledge on importance of GM (OR: 1.98; 95% CI: 1.16, 3.39; OR: 3.12; 95% CI: 1.60, 6.09, respectively), and, only for the LNS group, appropriate timing for complementary feeding (OR: 1.62; 95% CI: 1.09, 2.41). Conclusions Implementation constraints and suboptimal participation in program activities may explain the lack of impact on child linear growth in this rural region of Mali. This trial was registered at www.isrctn.com as ISRCTN08435964.

scholarly journals Implementation of a School Physical Activity Policy Improves Student Physical Activity Levels: Outcomes of a Cluster-Randomized Controlled Trial

2020 ◽  
Vol 17 (10) ◽  
pp. 1009-1018
Author(s):  
Nicole K. Nathan ◽  
Rachel L. Sutherland ◽  
Kirsty Hope ◽  
Nicole J. McCarthy ◽  
Matthew Pettett ◽  
...  
Keyword(s):  
Physical Activity ◽  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Vigorous Physical Activity ◽  
Cluster Randomized Controlled Trial ◽  
Randomized Controlled ◽  
School Day ◽  
Cluster Randomized ◽  
The Impact

Aim: To assess the impact of a multistrategy intervention designed to improve teachers’ implementation of a school physical activity (PA) policy on student PA levels. Methods: A cluster-randomized controlled trial was conducted in 12 elementary schools. Policy implementation required schools to deliver 150 minutes of organized PA for students each week via physical education, sport, or class-based activities such as energizers. Schools received implementation support designed using the theoretical domains framework to help them implement the current policy. Results: A total of 1,502 children in kindergarten to grade 6 participated. At follow-up compared with control, students attending intervention schools had, measured via accelerometer, significantly greater increases in school day counts per minute (97.5; 95% confidence interval [CI], 64.5 to 130.4; P < .001) and moderate to vigorous physical activity (MVPA) (3.0; 95% CI, 2.2–3.8, P < .001) and a greater decrease in sedentary time (−2.1; 95% CI, −3.9 to −0.4, P = .02) per school day. Teachers in intervention schools delivered significantly more minutes (36.6 min) of PA to their students at follow-up (95% CI, 2.7–70.5, P = .04). Conclusions: Supporting teachers to implement a PA policy improves student PA. Additional strategies may be needed to support teachers to implement activities that result in larger gains in student MVPA.

scholarly journals Supplementation with Fortified Lipid-Based and Blended Complementary Foods has Variable Impact on Body Composition Among Rural Bangladeshi Children: A Cluster-Randomized Controlled Trial

2020 ◽  
Vol 150 (7) ◽  
pp. 1924-1932 ◽  
Author(s):  
Saijuddin Shaikh ◽  
Rebecca K Campbell ◽  
Sucheta Mehra ◽  
Alamgir Kabir ◽  
Kerry J Schulze ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Body Composition ◽  
Linear Growth ◽  
Controlled Trial ◽  
Food Supplements ◽  
Cluster Randomized Controlled Trial ◽  
Complementary Food ◽  
Food Supplementation ◽  
Randomized Controlled ◽  
Cluster Randomized

ABSTRACT Background Complementary food supplementation enhances linear growth and may affect body composition in children. Objective We aimed to determine the effect of complementary food supplements provided from the age of 6 to 18 mo on fat-free mass (FFM) and fat mass (FM) gain among children in rural Bangladesh. Methods In an unblinded, cluster-randomized, controlled trial we tested the effects of 4 complementary food supplements for 1 y [chickpea, rice lentil, Plumpy'doz, and wheat-soy-blend++ (WSB++)] compared with no supplements on linear growth. Body composition was estimated using weight-length-based, age- and sex-specific equations at 6, 9, 12, 15, and 18 mo and postintervention aged 24 mo. Generalized estimating equations (GEEs) were applied to estimate the effect of each complementary food on mean FFM and FM from 9 to 18 and 24 mo compared with the control, adjusting for baseline measures. Sex interactions were also explored. Results In total, 3592 (65.9% of enrolled) children completed all anthropometric assessments. Estimated FFM and FM (mean ± SD) were 5.3 ± 0.6 kg and 1.4 ± 0.4 kg, respectively, at the age of 6 mo. Mean ± SE FFM and FM from 9 to 18 mo were 75.4 ± 14.0 g and 32.9 ± 7.1 g, and 61.0 ± 16.6 g and 30.0 ± 8.4 g, higher with Plumpy'doz and chickpea foods, respectively, than the control (P &lt; 0.001). Estimated FFM was 41.5 ± 16.6 g higher in rice-lentil-fed versus control (P &lt; 0.05) children. WSB++ had no impact on FFM or FM. A group-sex interaction (P &lt; 0.1) was apparent with Plumpy'doz and rice-lentil foods, with girls involved in the intervention having higher estimated FFM and FM than control girls compared with no significant effect in boys. At 24 mo, FFM and FM remained higher only in girls eating Plumpy'doz compared with the controls (P &lt; 0.01). Conclusions In this randomized trial, supplementation effected small shifts in apparent body composition in rural Bangladeshi children. Where seen, FFM increments were twice that of FM, in proportion to these compartments, and more pronounced in girls. FFM increased in line with reported improvements in length. This trial was registered at clinicaltrials.gov as NCT01562379.

scholarly journals Effect of Water, Sanitation, Handwashing, and Nutrition Interventions on Enteropathogens in Children 14 Months Old: A Cluster-Randomized Controlled Trial in Rural Bangladesh

2020 ◽  
Author(s):  
Jessica A Grembi ◽  
Audrie Lin ◽  
Md Abdul Karim ◽  
Md Ohedul Islam ◽  
Rana Miah ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Quantitative Polymerase Chain Reaction ◽  
Enteric Bacteria ◽  
Cluster Randomized Controlled Trial ◽  
Nutrition Interventions ◽  
Rural Bangladesh ◽  
Randomized Controlled ◽  
Cluster Randomized ◽  
The Impact

Abstract Background We evaluated the impact of low-cost water, sanitation, and handwashing (WSH) and child nutrition interventions on enteropathogen carriage in the WASH Benefits cluster-randomized controlled trial in rural Bangladesh. Methods We analyzed 1411 routine fecal samples from children 14 ± 2 months old in the WSH (n = 369), nutrition counseling plus lipid-based nutrient supplement (n = 353), nutrition plus WSH (n = 360), and control (n = 329) arms for 34 enteropathogens using quantitative polymerase chain reaction. Outcomes included the number of co-occurring pathogens; cumulative quantity of 4 stunting-associated pathogens; and prevalence and quantity of individual pathogens. Masked analysis was by intention-to-treat. Results Three hundred twenty-six (99.1%) control children had 1 or more enteropathogens detected (mean, 3.8 ± 1.8). Children receiving WSH interventions had lower prevalence and quantity of individual viruses than controls (prevalence difference for norovirus: –11% [95% confidence interval {CI}, –5% to –17%]; sapovirus: –9% [95% CI, –3% to –15%]; and adenovirus 40/41: –9% [95% CI, –2% to –15%]). There was no difference in bacteria, parasites, or cumulative quantity of stunting-associated pathogens between controls and any intervention arm. Conclusions WSH interventions were associated with fewer enteric viruses in children aged 14 months. Different strategies are needed to reduce enteric bacteria and parasites at this critical young age.

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