Track topics on Twitter Track topics that are important to you
The overall aim of the study is to assess the effect of school-based Human Papillomavirus (HPV) vaccination by comparing type-specific HPV prevalence between vaccinated and non-vaccinated women born in 1997. Women born in 1997, residence to Norway in 2009 (the year of vaccine initiation of the 1997-cohort) are invited to participate in the study.
This cohort is amongst the first that was offered HPV vaccine in an organized vaccination programme globally. The women will be recruited through Facebook ads. The study will enable us to measure differences in the prevalence of HPV types in vagina and the mouth between vaccinated and non-vaccinated young women in Norway.
The womens vaccination status will be validated by linkage to the Norwegian Immunisation Registry (SYSVAK) and their residence status will be validated through linkage to the Norwegian Population Registry.
Observational Model: Cohort, Time Perspective: Cross-Sectional
Cervical Intraepithelial Neoplasia
Self sample from vagina, Self sample from the oral cavity, Questionnaire
Oslo University Hospital, Cancer Registry of Norway
Not yet recruiting
Oslo University Hospital
Published on BioPortfolio: 2016-10-18T02:08:21-0400
Natural Killer (NK) cells play a unique role during innate immune responses as they are able to recognize and eliminate, without specific sensitization, tumors, microbe-infected cells as w...
The investigators intend to screen children who are suspected of having GAS tonsillitis. From each child we will take a throat culture and saliva sample to screen for molecular evidence of...
This study will evaluate whether babies are more at risk of developing breathing problems if their mothers carry group B streptococci (GBS) in vagina/rectum, and whether the breathing pr...
Sample size definition provides important information, allowing the groundwork for transparent reporting. The sample predefinition allows the trial to be large enough to be able to addres...
The aim of the following pilot study is to examine boredom in a community sample of adolescents and a clinical sample of adolescents. This is important in order to examine differences amon...
We explain how to design classic digital assays, comprising identical partitions, in order to obtain the required precision of the estimate within a defined range of concentrations. The design, includ...
Flexible sample size designs, including group sequential and sample size re-estimation designs, have been used as alternatives to fixed sample size designs to achieve more robust statistical power and...
When measuring the charged particles using a Frisch-grid ionization chamber, the sample is usually placed at the bottom of a sample position well on the common cathode. Thus, there will be the wall ef...
The Luria-Delbrück fluctuation experiment protocol is increasingly employed to determine microbial mutation rates in the laboratory. An important question raised at the planning stage is "How many cu...
Biological and pharmaceutical samples represent formidable challenges in sample preparation that hold important consequences for bioanalysis and genotoxic impurity quantification. This Feature will em...
The analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve that propels the sample downstream where mixing occurs in a coiled tube, then passes into a flow-through detector and a recorder or other data handling device.
A type of scanning probe microscopy in which a very sharp conducting needle is swept just a few angstroms above the surface of a sample. The tiny tunneling current that flows between the sample and the needle tip is measured, and from this are produced three-dimensional topographs. Due to the poor electron conductivity of most biological samples, thin metal coatings are deposited on the sample.
A solventless sample preparation method, invented in 1989, that uses a fused silica fiber which is coated with a stationary phase. It is used for sample cleanup before using other analytical methods.
The number of units (persons, animals, patients, specified circumstances, etc.) in a population to be studied. The sample size should be big enough to have a high likelihood of detecting a true difference between two groups. (From Wassertheil-Smoller, Biostatistics and Epidemiology, 1990, p95)
A method of simultaneously imaging and measuring elements at the submicron level. Nuclear microscopy uses a focused high-energy ion beam of PROTONS and ALPHA PARTICLES (a nuclear microprobe) to interact with the sample. The resulting emitted radiations are analyzed by a group of techniques simultaneously: PARTICLE INDUCED X RAY EMISSION SPECTROMETRY for minor and trace element identification; Rutherford Backscattering Spectroscopy to assess sample thickness and bulk elements such as carbon, hydrogen, oxygen, and nitrogen; and Scanning Transmission Ion Microscopy to assess sample structure and density.
Human Papillomavirus (HPV)
Human papilloma viruses (HPV) affect the skin and the moist membranes lining your body, for example, in your cervix, anus, mouth and throat. HPV is a common and highly contagious infection, with over three quarters of sexually active women acquiring it ...
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...
A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism, and is often made from weakened or killed forms of the microbe, its toxins or one ...