NP, number of polymorphic loci; NA, average number of alleles per locus; AR, allelic richness; HO, observed heterozygosity; HE, expected heterozygosity; FIS, inbreeding coefficient; yod, year of death; yob, year of birth.
Multiple regression analysis, adjusting for several confounding trial characteristics, also showed no significant association between the two parameters (regression coefficient for year of trial initiation = 0.011, 95% confidence interval = −0.36 0.38, P = 0.950; Table 3).
Pearson correlation coefficient with year of arrival = −0.37.
The p value corresponds to the test of the null hypothesis that the coefficient for year is zero.
Average annual percentage change (AAPC) and 95% CIs were derived using the coefficient for year in the Poisson model.
For the regression models, a Wald test p value of the linear coefficient for year less than 0.05 was considered statistically significant.
Codons that have a strong positive (r > 0.5) or negative (r < -0.5) correlation coefficient with year of virus isolation are summarized in Additional file 10.
This was less marked for the MDRD formula (regression coefficients per year increase –07.012 (95% CI –0.021 to –0.003) (formal heterogeneity test between coefficients p<0.001).
Fig. 8 Phillips curve in Italy: coefficients of year dummies interacted with province-level unemployment rates.
From the coefficients of year dummies, we also observe that males accumulate body mass faster than females.
In contrast, the coefficient of years of schooling does not change when we control for measures of non-cognitive skills but not for cognitive skills.
