Comparison of baseline and study period all-cause costs were made for the CTS, IMS, and BIO samples excluding patients with rheumatoid arthritis, Crohn's disease, psoriasis, or ankylosing spondylitis based on their ICD-9-CM diagnosis codes in the baseline or study period.
Statistical comparisons were conducted using chi-square tests for categorical outcomes and Wilcoxon rank-sum tests for continuous outcomes within baseline and study periods.
Fig. 5 Self-diffusion coefficient for a 2.9-nm particle and the baseline (a) and a size parametric study comparison of the difference in the self-diffusion coefficients between nanoparticles and the baseline (b).
Given that routine distribution of LLINs began almost 2 years prior to the introduction of iCCM in any district in Rwanda, it is unlikely to have affected the changes in mortality and health facility use between the baseline and comparison periods in our study.
MR evaluation of residual lymphomatous masses requires a pre-treatment baseline MR study for comparison, and can be done not only with T2-weighted images but also with gadolinium-enhanced sequences[ 9].
Baseline characteristics and study outcomes were compared using unadjusted statistical comparisons for both study cohorts.
Due to different enhancement of lymphomatous masses at diagnosis, MR evaluation of residual masses requires a pre-treatment baseline MR study for comparison.
PCV was introduced in April 2009 as part of the national routine childhood vaccination schedule; in relation to our study, this occurred between the baseline and comparison period for 13 districts and prior to the baseline period for 17 districts, including all 15 districts that were in our mortality analysis.
It was determined a priori to perform post-hoc pairwise comparisons at baseline and at the end of the study; comparisons beyond this were adjusted for multiple compassions (Sidak).
In the matched cohort study, comparisons of paired baseline characteristics were performed using the paired Student's t-test and the McNemar test for continuous and categorical variables, respectively.
