Minimizing risk of bias in clinical implant research study design

2019 ◽  
Vol 81 (1) ◽  
pp. 18-28
Author(s):  
Georgios A. Kotsakis
Keyword(s):  
Study Design ◽  
Research Study ◽  
Risk Of Bias ◽  
Research Study Design

Longitudinal study of Salmonella shedding in naturally infected finishing pigs

2012 ◽  
Vol 141 (9) ◽  
pp. 1928-1936 ◽  
Author(s):  
A. F. A. PIRES ◽  
J. A. FUNK ◽  
C. A. BOLIN
Keyword(s):  
Risk Factors ◽  
Longitudinal Study ◽  
Study Design ◽  
Production System ◽  
Research Study ◽  
Finishing Pigs ◽  
Faecal Samples ◽  
Research Study Design ◽  
Over Time

SUMMARYA 3-year longitudinal study was conducted on a multi-site farrow-to-finish production system. For each of 18 cohorts at three finishing sites, 50 pigs were randomly selected. Faecal samples were collected every 2 weeks for 16 weeks. Salmonella was cultured from 453 (6·6%) of 6836 faecal samples. The pig-level incidence of Salmonella was 20·8% (187/899 pigs). Salmonella prevalence varied between cohorts and within pigs. The adjusted Salmonella prevalence decreased over the finishing period from 6·4% to 0·8%. Intermittent detection of Salmonella was found in more than 50% of pigs that were positive at more than one collection. The finding that the majority of pigs shed intermittently has implications for surveillance and research study design when determining Salmonella status. The variability in shedding over time, as well as between and within cohorts and pigs suggests that there may be time-variant risk factors for Salmonella shedding in swine.

scholarly journals A guide to human microbiome research: study design, sample collection, and bioinformatics analysis

2020 ◽  
Vol 133 (15) ◽  
pp. 1844-1855
Author(s):  
Xu-Bo Qian ◽  
Tong Chen ◽  
Yi-Ping Xu ◽  
Lei Chen ◽  
Fu-Xiang Sun ◽  
...  
Keyword(s):  
Study Design ◽  
Research Study ◽  
Bioinformatics Analysis ◽  
Human Microbiome ◽  
Sample Collection ◽  
Microbiome Research ◽  
Research Study Design

scholarly journals Basics of research (part 3): Research study design

1995 ◽  
Vol 14 (3) ◽  
pp. 139-146 ◽  
Author(s):  
Edward A. Panacek ◽  
Cheryl B. Thomoson
Keyword(s):  
Study Design ◽  
Research Study ◽  
Research Study Design

Assessing Pharmacy Residents' Knowledge of Biostatistics and Research Study Design

2012 ◽  
Vol 46 (7-8) ◽  
pp. 991-999 ◽  
Author(s):  
P Brandon Bookstaver ◽  
April D Miller ◽  
Tisha M Felder ◽  
Danielle L Tice ◽  
LeAnn B Norris ◽  
...  
Keyword(s):  
Study Design ◽  
Research Study ◽  
Research Study Design

scholarly journals Engaging end-users in intervention research study design

2017 ◽  
Vol 55 (5) ◽  
pp. 483-491 ◽  
Author(s):  
Molly A. Martin ◽  
Valerie G. Press ◽  
Kim Erwin ◽  
Helen Margellos-Anast ◽  
Stacy Ignoffo ◽  
...  
Keyword(s):  
Study Design ◽  
Research Study ◽  
End Users ◽  
Intervention Research ◽  
Research Study Design

scholarly journals Involving Latina/o parents in patient-centered outcomes research: Contributions to research study design, implementation and outcomes

2017 ◽  
Vol 20 (5) ◽  
pp. 992-1000 ◽  
Author(s):  
Mónica Pérez Jolles ◽  
Maria Martinez ◽  
San Juanita Garcia ◽  
Gabriela L. Stein ◽  
Kathleen C. Thomas ◽  
...  
Keyword(s):  
Study Design ◽  
Outcomes Research ◽  
Research Study ◽  
Patient Centered ◽  
Research Study Design

scholarly journals Strategy for Standardization of Preeclampsia Research Study Design

Hypertension ◽  
2014 ◽  
Vol 63 (6) ◽  
pp. 1293-1301 ◽  
Author(s):  
Leslie Myatt ◽  
Christopher W. Redman ◽  
Anne Cathrine Staff ◽  
Stefan Hansson ◽  
Melissa L. Wilson ◽  
...  
Keyword(s):  
Study Design ◽  
Research Study ◽  
Research Study Design
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