However, the variance of the IDDD baseline data in the German sample was higher than in the Dutch sample (German sample: experimental group, mean 15.4 (SD 9.9); control group, 14.1 (10.1); Dutch sample: experimental group 23.5 (7.9); control group, 24.5 (8.7)).
The variance of the latent baseline level component (43.10, P<0.001) and the variance of the latent slope component (18.52, P<0.001) were both statistically significant indicating that there were significant inter-individual differences in these two factors.
Whether these numbers significantly exceeded the expected numbers was determined looking at the upper 95% confidence level for the expected number assuming a Poisson distribution for the variance of the expected baseline number, a continuity correction, and the exact value for the Poisson distribution function in Excel 2000 [ 6].
The equivalence of the three alternate forms of the SCIP was supported by the absence of significant differences between forms in a multivariate analysis of variance comparing the baseline scores of the bipolar sample, (F(10,140) = 0.813, p = 0.616) (see Table 2).
Continuous outcome measures taken at 6, 12 and 52 weeks will be analysed using univariate analysis of variance, where the baseline value of the outcome measure will be used as a covariate and group allocation as a fixed factor.
In a linear regression model of the level of psychological distress at follow-up, with baseline level of psychological distress, work factors, and background factors as independent variables, work factors explained 2%% of the variance, whereas the baseline level of psychological distress explained 34%%.
In the training data, changes in SUVmax follow an approximately zero-mean Gaussian distribution with constant variance across levels of the baseline measurements.
Results: Strength deficits in shoulder abduction-lateral rotation, pain during muscle strength testing, painful arc in abduction, scapular anterior tilting asymmetry, gender, and age explained 91% of the variance of the SPADI at baseline.
The M statistic was calculated as follows: M = (obs - exp) T S- (obs - exp) where obs is a vector of normalized observed proportions, exp is a vector of normalized expected proportions, S is a 10 × 10 variance-covariance matrix of the baseline proportions (calculated with data for 156 weeks).
The regional clustering of physical health is comparatively small with around 2.4% of the total variance in the baseline model, which adjusts for age and gender.
