DEMOGRAPHIC characteristicsPERIODICAL publishingBackground: In randomised controlled trials (RCTs), the application of a test of significance to compare the baseline differences between the intervention groups is a common practice, though it has been condemned by many researchers. Objective: This study ...
Tests for trend are an informative and useful tool to examine whether means, medians or proportions of continuous or categorical variables increase or decrease across ordered groups. In clinical and epidemiological research, comparisons of baseline patient characteristics (e.g., demographic, clinical and...
Prevalence of serotype-specific and all VT carriage will be compared at baseline, 6, 9, 18, and 24 months of age, including a term for strata and cluster identity in the models. Pneumococcal immunogenicity For the primary endpoint, we will use a PP cohort comparing VT GMCs at age 18 ...
Your choice of statistical test depends on your research questions, research design, sampling method, and data characteristics. Parametric tests Parametric tests make powerful inferences about the population based on sample data. But to use them,some assumptionsmust be met, and only some types of va...
This dataset consisted of longitudinally measured cytokines (48 in total) and 46 baseline characteristics collected from 812 women, among whom 96 acquired HIV infections. The cytokines measurements were obtained from stored plasma samples and cervicovaginal lavage specimens from cases and control groups....
For a thorough and balanced comparative introduction to these (now th ree) schools of statistical inference, see [1], Show moreView chapterExplore book Statistical analysis of univariate data Milan Meloun, Jiří Militký, in Statistical Data Analysis, 2011 3.1.2 Sample Characteristics The ...
The gut microbiome is closely associated with health status, and any microbiota dysbiosis could considerably impact the host’s health. In addition, many active consortium projects have generated many reference datasets available for large-scale retrospe
Baseline characteristics We will present baseline age, sex, admission category (medical, postoperative (non-trauma) and trauma (postoperative and non-operative)), Acute Physiology and Chronic Health Evaluation (APACHE) II score, and chronic health points (defined as per the APACHE II system) [17]...
A certain share \(\alpha _{l}\) of the newly positively tested people needs intensive care l days later with lag \(l, l=1,\ldots ,L\), and some maximum lag L denoting the maximal duration between a positive test and ICU admission. Moreover, patients remain in intensive care for a...
(c) The estimate will probably be greater than 0.5 because, given the finite sample size, the adjustment for x is noisy and is likely to undercorrect for imbalance in the design. (d) The estimate is unbiased because the model correctly adjusts for differences in pre-test between treatment ...