Sentence examples for between sample subgroups were from inspiring English sources
Comparisons between sample subgroups were made with Pearson χ tests and Fisher's exact tests.
Subgroup analyses, in which the strength or effect size of the association is compared between sample subgroups, have substantially less power to detect an association than the original intact sample, increasing the risk of false negative results.
The differences between all the AUCs across overall sample and subgroups were nonsignificant in nature, indicating relative stability over 1-, 3-, and 5-year follow-ups.
Differences in mean scores for each statement between subgroups were assessed using independent-samples t-tests [ 20].
Methylation differences between tumor and normal samples and tumor subgroups were analyzed using a linear model in limma v3.2.1 [ 32].
One-sample Student t tests were used for testing whether differences between subgroups were significantly different from zero.
The differences in distributions of findings between subgroups were analysed with Fischer's exact test for categorical data due to the small sample sizes of subgroups.
No differences between subgroups were identified.
No large differences between subgroups were observed.
Furthermore, variations between subgroups were observed.
