Odds ratios and test for trend
Test for Homogeneity of Odds Ratios Using U Statistics
... exact test in our simulation ...the test rejected the null hypothesis of a common odds ratio at a pre-specified α level among 10,000 tests that were simulated with same odds ratios ...
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An accurate test for homogeneity of odds ratios based on Cochran’s Q-statistic
... homogeneity test based on Q (to be denoted Q γ ) that is substantially more accurate than the use of the chi-square ...this test with those of other homogeneity tests, such as that of Breslow and Day ...our ...
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A simple, robust and powerful test of the trend hypothesis
... a trend and the order of integration jointly (see, for example, Karlsson and Salabasis, ...the trend function hypothesis tests proposed in this paper appeal to asymptotic theory for their justi…cation, but ...
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Pulmonary Function Test Trend in Adult Bronchiolitis Obliterans
... When analyzing the PFT data, we selected two PFTs of each patient with the longest time interval between them. In this regard, we had patients who had two PFTs with different interval times. According to these intervals, ...
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Applying the Breslow-Day Test of Trend in Odds Ratio Heterogeneity to the Analysis of Nonuniform DIF
... Identification of nonuniform differential item functioning: A comparison of Mantel-Haenszel and item response theory analysis procedures.. Educational and Psychological Measurement, 57[r] ...
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Powerful Modifications of Williams Test on Trend
... Emphasis is given on Williams’ t - test , the LRT of Bartholomew, Marcus’ 1976 modified t - test and single and multiple contrast tests.. Other methods are briefly mentioned and their li[r] ...
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Beta-binomial model for meta-analysis of odds ratios
... of odds ratios (ORs), heterogeneity between the studies is usually modelled via the additive ran- dom effects model ...Breslow-Day test, and the other on the improved gamma approximation by ...
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Identifying the Time of a Linear Trend Disturbance in Odds Ratio of Clinical Outcomes
... linear trend in terms of odds ratios benefits the change point model since no constraint on each p 1i , i = τ, ...linear trend models in a Bernoulli process rate without ...
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Odds ratios from logistic, geometric, Poisson, and negative binomial regression models
... The test statistics, such as the one in the commonly used Wald’s test, contain the standardized MLE with standard error of the MLE in the ...Wald’s test is ...
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A method to compute multiplicity corrected confidence intervals for odds ratios and other relative effect estimates.
... * Correspondence to Dr. Jimmy Thomas Efird. E-mail: [email protected] Received: 22 September 2008 / Accepted: 24 November 2008 / Published: 31 December 2008 Abstract: Epidemiological studies commonly ...
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Changing trend? Sex ratios of children born to Indian immigrants in Norway revisited
... sex ratios for families where all the previously born children are female, to see if the trend had changed for them as ...significance test (Table 2) show a similar trend as for all third and ...
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Assessing the Relation between Plasma PCB concentrations and Elevated Autistic Behaviours Using Bayesian Predictive Odds Ratios
... diagnostic test for ASD; it also measures other aspects of social behaviours that tend to co-occur with other behavioural disorders such as attention deficit hyperactivity disorder or language disorders ...
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Risk Factors for Early-onset Group B Streptococcal Sepsis: Estimation of Odds Ratios by Critical Literature Review
... Among the greatest barriers to general acceptance of antenatal screening strategies is inability to ensure that screening cultures are performed consistently and that results are available at the site and time of ...
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Comparison of three tests of homogeneity of odds ratios in multicenter trials with unequal sample sizes within and among centers
... BD test is that it has low power when the sample size within each center is small, even if the number of centers is large ...LR test from the Model 1 enables inferences to extend to the population of cen- ...
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Overestimation of the effectiveness of the bicycle helmet by the use of odds ratios.
... rates, odds ratios of helmeted versus unhelmeted cyclists for head injury and other injuries on hospitalized victims are broadly used in case-control ...which odds rati- os indeed equal risk ...
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Odds ratio, Odds ratio test for independence, chi-squared statistic.
... the odds ratio involves taking the logarithm of the odds ...other test involving cross tabs, is that every cell* should be large for the confidence interval to be ...
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GEE for Multinomial Responses Using a Local Odds Ratios Parameterization
... The results suggest that the proposed GEE method tends to be strikingly more efficient than the independence “working” model in designs with time-varying covariates, regardless of whether data are missing. Under a latent ...
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Odds ratios and logistic regression: further examples of their use and interpretation
... New York Medical College Valhalla, NY Abstract. Logistic regression is perhaps the most widely used method for ad- justment of confounding in epidemiologic studies. Its popularity is understand- able. The method can ...
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Bias in odds ratios by logistic regression modelling and sample size
... yields odds-ratio estimations and allow adjustment for ...that odds ratio reflects the incidence ratio between the exposed and unexposed and we assume logis- tic regression models odd ratio without ...
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Club Ratios: A Four-Year Trend Analysis
... the ratios, management may want to take the next step of analyzing and taking any needed anticipatory or corrective ...these ratios can just be that ticket! ...
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