W C Blackwelder
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Explore the profile of W C Blackwelder including associated specialties, affiliations and a list of published articles.
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49
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1043
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Recent Articles
1.
Blackwelder W
J Dent Res
. 2004 Aug;
83 Spec No C:C113-5.
PMID: 15286135
A clinical trial designed to show that an experimental treatment E is similar to a control treatment S in a specified direction is a one-sided equivalence or similarity trial--in the...
2.
Hoover D, Blackwelder W
Stat Med
. 2001 Oct;
20(20):3071-82.
PMID: 11590633
Allocating a proportion k'=1/(1+ radicalr(0)) of subjects to an intervention is a practical approach to approximately maximize power for testing whether an intervention reduces relative risk of disease below a...
3.
Pichichero M, Edwards K, Anderson E, Rennels M, Englund J, Yerg D, et al.
Pediatrics
. 2000 Jan;
105(1):e11.
PMID: 10617748
Objective: To evaluate the safety and immunogenicity of 6 different acellular pertussis vaccines combined with diphtheria and tetanus toxoids (DTaP) and with 1 licensed whole-cell pertussis vaccine (DTwP) as a...
4.
Friedman H, Saah A, Sherman M, Busseniers A, Blackwelder W, Kaslow R, et al.
J Infect Dis
. 1998 Jul;
178(1):45-52.
PMID: 9652422
Cross-sectional associations between human papillomavirus (HPV), anal squamous intraepithelial lesions (SIL), and human immunodeficiency virus (HIV) were studied in a cohort of gay men. HPV DNA was detected by generic...
5.
Blackwelder W, VanRaden M, Deloria M
Dev Biol Stand
. 1997 Jan;
89:161-6.
PMID: 9272346
We estimated efficacy of pertussis vaccines in three randomized controlled trials with adjustment for several baseline covariates: presence of one or more other children in the household, sex of the...
6.
Regan J, Klebanoff M, Nugent R, Eschenbach D, Blackwelder W, Lou Y, et al.
Am J Obstet Gynecol
. 1996 Apr;
174(4):1354-60.
PMID: 8623869
Objective: Our purpose was to study the association of cervicovaginal colonization with group B streptococci with pregnancy and neonatal outcome. Study Design: A prospective study was conducted at seven medical...
7.
Greco D, Salmaso S, Mastrantonio P, Giuliano M, Tozzi A, Anemona A, et al.
N Engl J Med
. 1996 Feb;
334(6):341-8.
PMID: 8538704
Background: Concern about both safety and efficacy has made the use of whole-cell pertussis vaccines controversial. In some European countries, including Italy, the rate of vaccination against pertussis is low....
8.
Deloria M, Blackwelder W, Decker M, Englund J, Steinhoff M, Pichichero M, et al.
Pediatrics
. 1995 Sep;
96(3 Pt 2):592-4.
PMID: 7659483
Objective: To evaluate the relative frequency of adverse reactions after initial and subsequent immunizations among infants receiving primary immunization with acellular (DTaP) or whole-cell (DTP) pertussis vaccine with diphtheria and...
9.
Reizenstein E, Hallander H, Blackwelder W, Kuhn I, Ljungman M, Mollby R
J Immunol Methods
. 1995 Jun;
183(2):279-90.
PMID: 7602150
During a phase III pertussis vaccine trial, serum antibody responses were measured by two enzyme-linked immunosorbent assays (ELISA) for pertussis toxin and filamentous haemagglutinin. These were used both for studies...
10.
Blackwelder W
Ann N Y Acad Sci
. 1995 May;
754:321-8.
PMID: 7625668
In a similarity or "equivalence" trial of a combination vaccine, we wish to show that the combination is sufficiently similar to the separately administered components in some measure of safety,...