ELIZA cgi-bash version rev. 1.90
- Medical English LInking keywords finder for the PubMed Zipped Archive (ELIZA) -

return kwic search for levels out of >500 occurrences
501283 occurrences (No.27 in the rank) during 5 years in the PubMed. [no cache] 500 found
440) A question of interest in many vaccine clinical development programmes is whether vaccine-induced serum antibody level can be used as a correlate of vaccine efficacy; that is, whether serum antibody levels induced by a candidate vaccine can reliably predict the risk of breakthrough disease.
--- ABSTRACT ---
PMID:21865269 DOI:10.1177/0962280211416299
2015 Statistical methods in medical research
* Using proportion of similar response to evaluate correlates of protection for vaccine efficacy.
- A question of interest in many vaccine clinical development programmes is whether vaccine-induced serum antibody level can be used as a correlate of vaccine efficacy; that is, whether serum antibody levels induced by a candidate vaccine can reliably predict the risk of breakthrough disease. Traditionally, analyses to answer this question have been based on modelling the incidence of breakthrough disease as a function of antibody level, among vaccinated subjects in clinical trials. The Proportion of Similar Response (PSR) method will be described and explored, and compared to the Receive Operator Characteristics (ROC) curve as a graphical tool and the area under the ROC (AUROC) as a summary measure in the context of evaluating correlates of protection. A way to use PSR analysis as complementary to Youden's index as a simple and elegant method to determine the discriminatory ability of a test and to set an optimal threshold value will be presented. In addition, the relationships among PSR and other measures of overlap and discrimination will be described. An example based on a clinical trial from a development programme for a vaccine against human papillomavirus (HPV) will be presented.
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(5)34 and (12)4 on (19)2 compared
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--- WordNet output for levels --- Overview of noun level The noun level has 8 senses (first 6 from tagged texts) 1. (69) degree, grade, level -- (a position on a scale of intensity or amount or quality; "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree") 2. (22) grade, level, tier -- (a relative position or degree of value in a graded group; "lumber of the highest grade") 3. (15) degree, level, stage, point -- (a specific identifiable position in a continuum or series or especially in a process; "a remarkable degree of frankness"; "at what stage are the social sciences?") 4. (5) level -- (height above ground; "the water reached ankle level"; "the pictures were at the same level") 5. (1) level, spirit level -- (indicator that establishes the horizontal when a bubble is centered in a tube of liquid) 6. (1) horizontal surface, level -- (a flat surface at right angles to a plumb line; "park the car on the level") 7. level, layer, stratum -- (an abstract place usually conceived as having depth; "a good actor communicates on several levels"; "a simile has at least two layers of meaning"; "the mind functions on many strata simultaneously") 8. floor, level, storey, story -- (a structure consisting of a room or set of rooms at a single position along a vertical scale; "what level is the office on?") Overview of verb level The verb level has 6 senses (first 3 from tagged texts) 1. (4) level -- (aim at; "level criticism or charges at somebody") 2. (1) level, raze, rase, dismantle, tear down, take down, pull down -- (tear down so as to make flat with the ground; "The building was levelled") 3. (1) flush, level, even out, even -- (make level or straight; "level the ground") 4. charge, level, point -- (direct into a position for use; "point a gun"; "He charged his weapon at me") 5. level -- (talk frankly with; lay it on the line; "I have to level with you") 6. level, level off -- (become level or even; "The ground levelled off") --- WordNet end ---