Exact(3)
We had planned to estimate an average inflation factor, based on a comparison of the effect for the composite outcome and that for the most clinically important outcome, but realised that this was problematic (see Discussion).
We had planned to estimate an average "inflation" factor, comparing the effect for the composite with that for the most clinically important outcome, but it is not straightforward how one should analyse the data.
The average inflation factor of P-values was 1.11 ± 0.12, with a minimum of 1 (for five of the 19 traits) and a maximum of 1.39 (for BACKFAT), indicating relatively good concordance between the observed and assumed distributions of the test statistics.
Similar(57)
In WarpPLS, the output model fit is assessed by three indices: Average path coefficient (APC), Average R-squared (ARS) and Average variance inflation factor (AVIF).
The average variable inflation factor of all the variables included in the multiple logistic regression analysis was 1.19 and no variable inflation factor of any variable exceeded 1.4.
The average variance inflation factor was not substantially greater than 1.0 (between 1.1 and 1.6), suggesting that the regression was not biased by multicollinearity [ 36, 37].
The average GC inflation factor across studies was 1.005 for directly genotyped SNPs, 0.97 for imputed SNPs and 1.007 overall, suggesting little population stratification.
The average variance inflation factor was not substantially higher than 1 (PCS-36 and MCS-36 between 1.1 and 1.7), suggesting that the regression was not biased by multicollinearity [ 36, 37].
Tests have been adapted for gene set enrichment that deal theoretically with the inflation of variance by estimating an average variance inflation factor (Wu and Smyth, 2012), but for SNPs, we do not believe a single variance inflation factor can capture the strength and highly variable correlation observed.
Average variance inflation factors (VIF) for the independent variables were 1.5, and average tolerance levels were 0.7 The demand for sports and exercise was negatively associated with time (travel or access time) and 'variable' price, but positively correlated with 'fixed' price.
The average variance inflation factors (VIF) show no indication of multicollinearity (mean VIF < 1.2), single VIF values < 1.37).
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