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.

baseline

/base·line/ (bās´līn) a value representing a normal background level or an initial level of a measurable quantity and used for comparison with values representing response to an environmental stimulus or intervention.

baseline

[bās′līn]
Etymology: Gk, basis + L, linea
1 a known value or quantity with which an unknown is compared when measured or assessed (e.g., baseline vital signs).
2 the patient�¢ï¿½ï¿½s initial information at diagnosis or assessment against which later tests will be compared.
3 (in radiology) any of several basic anatomical planes or locations used for positioning purposes. They include the orbitomeatal, infraorbitomeatal, acanthomeatal, and glabellomeatal lines.

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.

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.

Baseline

A return to an original state.
Mentioned in: Sedation

baseline,

n the horizontal axis on a graph drawn by the pen recorder.

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.

baseline,

n a reference point used to indicate the initial condition against which future measurements are compared.

baseline

a known value or quantity used to measure or assess an unknown, as a baseline urine sample.

baseline data
a set of data collected at the beginning of a study or before intervention has occurred.
References in periodicals archive ?
Recommendation: To strengthen its baselines, facilitate external and independent reviews of those baselines, ensure effective oversight of the BMDS, and further improve transparency and accountability of its efforts, and to improve clarity, consistency, and completeness of the baselines reported to Congress, the Secretary of Defense should ensure that MDA, for resource baselines, provide more detailed explanations and definitions of information included in resource baselines; particularly operations and support costs and unit cost calculations.
1 states that the baseline model must have the same ventilation airflow rate as the proposed building.
The challenge in doing most sales analysis is estimating how much volume generated in a given week is baseline and how much is incremental.
More important, because the PMs were accustomed to using tools like Microsoft Project on a routine basis in their regular assignments, they were able to work with the functional area specialists to capture their understanding of sequenced activities, duration, and interrelationship to assemble the collection of schedules into a cohesive program baseline.
The 3Com Baseline Switch 2226-PWR Plus is designed to drive down the cost of deploying IP telephony applications and small business wireless applications, accelerating the adoption of IP telephony and mobile technologies.
is](t), can then be absorbed into the baseline hazard function to form a community-specific baseline hazard of the form [[lambda].
On-task behavior was measured to determine the levels of participation during baseline and intervention conditions.
By establishing a baseline assessment prior to outsourcing, a company can establish a picture of the current environment and reach a clear understanding of current service level expectations, work volumes and baseline costs.
Teachers reported statistically significantly lower levels of confidence in response to vignettes describing students exhibiting poor strategy use and poor motivation, in contrast to vignettes describing students exhibiting baseline learning styles.
In a study of 56 patients who had been treated with at least 2 other PIs, a Kaletra-containing regimen suppressed viral load below the limits of quantification (400 copies/mL) in 24 of 25 patients whose baseline virus contained 5 point mutations associated with resistance to PI therapy.
A baseline audit, which should be performed at the outset, is an audit of the provider's billing and clinical practices to determine the facility's current compliance with federal requirements.
The approach was to developed a powerful tool which provides integrated logistics support managers with the capability to use, adjust and assess an already established baseline database (developed specifically for each individual FMS case) to assess cost implications of alternative operational and maintenance repair concepts.