The mean differences significantly varied by age class, with patients aged 65 74 years old having the largest mean differences, whereas those aged ≥85 years old had a mean difference very close to zero.
The power was based on mean differences whereas we finally used Poisson regression analysis to study differences in numbers of days with wheeze, which detects smaller differences as statistically significant.
The solid lines in b and d indicate the mean difference (bias), whereas the dashed lines show the limits of agreement.
The solid lines in b, d and f indicate the mean difference (bias), whereas the dashed lines show the limits of agreement.
For example, the added computational expense to generate z-statistics from correlation coefficients is motivated by parametric tests of the mean difference statistic, whereas, for rank sum tests, the PC loadings are sufficient.
Importantly, however was the observation that calcium level or the logarithm of the coronary calcium scores were not related to the mean difference between scans, whereas they were significantly related to the absolute and relative differences (Table 4, Figs. 1 and 2).
Odds ratio (OR) and 95%% confidence interval (95 % CI) were used as summary statistics for binary data, whereas mean difference (MD) was used for continuous data.
Leg DTH was greater than forearm DTH among controls (mean difference 5.6 mm, P=0.0004), whereas this was not observed in cKS cases (−2.2 mm, P=0.32) or KSHV-positives (0.5 mm, P=0.56).
For example analysis of GAPDH using a target amplicon of 67 bp displayed a mean difference of 4.28 cycles, whereas an assay designed for the same gene (GAPDH) using a target amplicon size of 122 bp displayed a mean difference of 6.51 Cts between FFPE and snap frozen material.
