For each sample, the hazard ratio (HR) for the EAARN score was calculated.
Lenvatinib PFS benefit was shown in Japanese patients (median PFS: lenvatinib, 16.5 months; placebo, 3.7 months), although significance was not reached, presumably due to sample size (hazard ratio, 0.39; 95% confidence interval, 0.10 1.57; P = 0.067).
Cox's multivariate regression model was used when calculating sample size; hazard ratios (HR) of at least 2 were thus considered, whenever they had a 5% significance level, 80% power, 0.55 standard deviation of tested covariates and 0.1 correlations between tested covariates.
On the contrary, for Aurunci spring samples magnesium hazard values range from 3.2 to 60.2 (Table 2).
The EADIs were also below WHO/FAO allowable daily intake recommended in all fruit and vegetable samples; however hazard indices for cabbage and oranges were close to the value one.
Allowing for differences in sample size, hazards in subgroups restricted to patients with specific diseases were generally consistent with the overall findings.
Life tables present the number of failed, censored, effective sample size and hazard ratios (probability per time unit that a case that has survived to the beginning of the respective interval will fail in that interval) for older adults hospitalized with a fall injury (Lang and Secic 2006).
We evaluated the statistical power for survival analysis, considering numbers of events and sample size and Hazard ratio (HR).
In power calculation the sample size and hazard ration (HR) were calculated with a power of 80% and a two-sided level of significance at 0.05.
Despite the small sample size, the hazard ratio for survival in the group with low expression of pan-cytokeratin/CXCR4-positive cells was 0.23 (95% confidence interval (CI), 0.02 0.79).
