baseline


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Related to baseline: baseline data

baseline

 [bās´līn]
an observation or value that represents the normal or beginning level of a measurable quality, used for comparison with values representing response to experimental intervention or an environmental stimulus, usually implying that the baseline and reponse values refer to the same individual or system.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

baseline

Clinical trials
The health state—disease severity, confounding conditions, etc.—present in a person or group of individuals at the beginning of a prospective study.
 
The baseline is time “zero”, before the participants in the study receive an experimental agent or intervention, or negative control; drug safety and efficacy may be determined by monitoring changes in baseline values; variations in distributions of baseline values between groups may introduce bias in the results.
 
Informatics
A measure of cumulative citation frequency across all Derwent Section classes, which shows upward and downward trends in a particular patent family.

Sleep disorders
The normative (i.e., typical) state of a person or of an investigative parameter before an experimental manipulation.
 
Vox populi
A generic term for any basal, null or unstimulated state, often represented as a horizontal line.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

base·line

(bās'līn)
1. A line approximating the base of the skull, passing from the infraorbital ridge to the midline of the occiput, intersecting the superior margin of the external auditory meatus; the skull is in the anatomic position when the baseline lies in the horizontal plane.
Synonym(s): orbitomeatal line.
2. Level of performance or aggregate findings before initiation of therapy.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Baseline

A return to an original state.
Mentioned in: Sedation
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

base·line

(bās'līn)
1. A line approximating the base of the skull, passing from the infraorbital ridge to the midline of the occiput, intersecting the superior margin of the external auditory meatus.
2. Level of performance or aggregate findings before therapy.
Synonym(s): orbitomeatal line.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Xu separates along-track baseline and cross-track baseline through image registration, and estimates the two kinds of baseline errors by image registration and subspace decomposition respectively [20].
Although there was a significant main effect for context schedule duration to affect choice proportions, baseline choice proportions were variable both within and across pigeons (Fig.
The results of the 9-week multicenter, randomized, controlled trial show that all the LCI, HCI, and MC groups significantly increased the proportion of patients who fulfilled the primary outcome of three or more SBMs per week, with an increase from baseline of at least one SBM per week for 3 or more weeks of the 4-week treatment period.
* baseline LVESV greater than 100 ml identified a rapidly deteriorating sub-group of CHF patients with LV systolic dysfunction who experience a high rate of adverse outcomes
As this illustrates, when it comes to temporary tax changes, the baseline used to judge our current course and changes from it is broken.
At baseline, in order to help improve the health of the community and reduce their risks from arsenic exposure, an arsenic mitigation program was implemented to promote switching to wells with relatively lower water arsenic concentration (< 50 [micro]g/L) (Chen Y et al.
After the acquisition Baseline will retain in headquarters in Los Angeles, Gracenote further said.
INTERGROUP COMPARISON OF SYSTOLIC BLOOD PRESSURE: The baseline SBP was comparable between two groups with no statistically significant difference.
Some weather services already have adopted new baselines, causing confusion.
Baseline Vertical Fenestration Area now has a table that defines the amount of glazing to be modeled in the baseline building.