(1) Such a decrease significantly biased survival (p = 0.001).
(2) Even though attempts to generalize the data from childbearing women to women of childbearing age have an inherent conservative bias, the results of our study suggest that 988 women (95% CI 713 to 1336) aged 15 to 44 years in Quebec had HIV infection in 1989.
(3) These deficiencies in the data compromise HIV surveillance based on diagnostic testing, and supplementary bias-free data are needed.
(4) In addition, despite the fact that the differences constitutes an information bias, the bias occurs in the same direction and magnitude in all the various subgroups and thus is nondifferential.
(5) However, each of the studies had numerous methodological flaws which biased their results against finding a relationship: either their outcome measures had questionable validity, their research designs were inappropriate, or the statistical analyses were poorly conceived.
(6) Methods to minimize bias in the design and implementation of consultation-liaison research are suggested.
(7) Results were inconsistent with both the feature detector fatigue and response bias hypothesis.
(8) Special conditions apply for the scoring of a first and a last bone stage in a sequence, which will introduce less bias in the estimation of individual skeletal maturity with the MAT-method than with the TW-method.
(9) The greater use of health services for female children probably accounts for the female-biased sex ratio among the Mukogodo.
(10) The possibility that selective bias or unmeasured environmental differences might explain the difference in BP between the two groups is discussed.
(11) In Study 4, attributional biases and deficits were found to be positively correlated with the rate of reactive aggression (but not proactive aggression) displayed in free play with peers (N = 127).
(12) Significant biases in the distribution of cases of babesiosis were found with regard to season (P < 0,05), sex (P < 0,001) and coat colour (P < 0.01).
(13) This suggests that monitoring heart rate during limited portions of the day will provide a biased estimate of overall heart rate.
(14) Analogous biases and solutions apply to other sampling problems in health services research.
(15) Only eye position proved statistically significant; straight-ahead eye position induced more bias than did fixation of the visual stimulus.
(16) A model was investigated which simulated choices one may have between disease classification tests, to determine how the required sample size and bias in the estimates of the risk ratio and risk difference varied between tests.
(17) Paradigm relies heavily on social science research and analysis to help companies identify and address the specific barriers and unconscious biases that might be affecting their diversity efforts: things like anonymizing resumes so that employers can’t tell a candidate’s gender or ethnicity, or modifying a salary negotiation process that places women and minorities at a disadvantage.
(18) We confirm that sera from patients on intravenous therapy with lidocaine exhibit a positive bias in results for creatinine but that lidocaine itself does not interfere.
(19) We discuss advantages and disadvantages of total randomization, of Zelen-type randomization procedures, of Efron-type procedures vs more classical blocking procedures to control the balance between groups, and of Simon-Pocock-type procedures vs more classical stratification for controlling possible biases in prognostic factors.
(20) (4) R(XY)(t,tau) is a biased estimator of the shape of h(t), generally over-estimating both its time to peak and its rise time.
Unbiased
Definition:
(a.) Free from bias or prejudice; unprejudiced; impartial.
Example Sentences:
(1) This may have significant consequences for people’s health.” However, Prof Peter Weissberg, medical director of the British Heart Foundation, which funded the work, said medical journals could no longer be relied on to be unbiased.
(2) We show that it does apply under conditions of high ionic strength (0.3 M KCl), and under these conditions time courses may be analyzed to yield unbiased estimates of the initiation (Vi) and chain elongation (Vp) rates.
(3) Thus obtained body shape variables were used in discriminant analysis in order to obtain unbiased classification probabilities of individuals having the MBS or being normal.
(4) The novel sampling scheme used in this study is unbiased and was designed so that only a small amount of neocortical grey matter had to be removed.
(5) This difference, however, did not influence the detection of rhythmical ictal activity in cheek and sphenoidal montages in our study, nor the assignment of side, site or time of seizure onset by unbiased readers.
(6) In contrast, when C is also estimated from the subject's data the model fits the data and the estimate of A is unbiased but the precision may be diminished when the actual value of C is low.
(7) It is concluded that the survey program, which continues, provides an external facility for unbiased control of commercially available as well as non-commercial assay techniques and that it has been instrumental in the improvement of gentamicin assay standard.
(8) Countrywide clinical prevalence surveys are the only unbiased means of determining the magnitude, severity, and geographic distribution of vitamin A-related corneal destruction, prerequisites for the design of public health prevention programs.
(9) Methods that replace the rare-disease assumption with the stable-population assumption (such as case-exposure designs applied to open populations) will not yield unbiased results when the source population is a fixed cohort.
(10) To draw genetical conclusions it is of fundamental importance that the material should be an unselected, unbiased material derived from a twin population.
(11) We therefore analysed these patients' survivals by the unbiased Mantel-Byar method, using a comparison of multiple survival factors (Cox's technique).
(12) All variations yield unbiased estimates of the treatment effect but estimates differ in efficiency, with the RCT being most efficient and the single-cutoff design being least efficient.
(13) We assume that gene conversion is unbiased, and that all mutations are initially deleterious.
(14) The data reported here are from a large population-based study of multiple sclerosis in twins, in which ascertainment has been relatively unbiased and the cooperation of patients nearly complete.
(15) When the geometry of the needles was unbiased, the tilt of the needles was correctly and rapidly appreciated.
(16) Images of transverse sections of the myosin filaments were determined to have threefold symmetry by cross-correlation analysis, which gives an unbiased determination of the rotational symmetry of the images.
(17) Predictions derived from growth models are conditional upon the child's size and are, therefore, unbiased.
(18) The importance of rank changes coupled with the increased accuracy of these more complex evaluation methods strongly suggest that best linear unbiased predictors of genetic value be utilized in comparing boars in central test stations.
(19) Both the ratio technique and the fractionator approaches provided efficient and unbiased estimates of fibre numbers.
(20) It is therefore increasingly important to monitor the course of the epidemic through large-scale unbiased surveys of the heterosexual population in order to plan future preventive and health-care strategies.