Figure 3 shows considerable clustering of lactate concentrations around 2.2 mM for this group.
The PCA scores plot of PC1 versus PC2 (Figure 5B) showed considerable clustering of the four groups of mice, albeit with some overlap between them.
The PCA scores plot of the first two principal components (Figure 4A) showed considerable clustering of the three groups, albeit with some overlap between the groups.
There was considerable clustering of substance use at the patient level as indicated with an ICC of 0.25.
Variance component analyses showed that service areas account for 39.4% of the total variance of GP-consultations and imply considerable clustering of consultation rates within areas (Table 5).
In addition, a record linkage study in Utah (Seger et al. 2011) indicated that there was considerable clustering of EC in families, even accounting for obesity.
Finally, state-level random effects are significant; the residual intraclass correlation is still appreciably large, indicating that even after controlling for individual, household and community factors, there is still considerable clustering of antenatal service utilization at the state level.
If our hypothesis was correct, we would expect to find considerable clustering of the safety attitude scores at the department and ward level, i.e. non-trivial-to-high intraclass correlation coefficients.
Lastly, the interclass correlation, which tells us what portion of the total variance occurs between medical institutions, was estimated to be 0.21 among NHI-enrolled inpatients and 0.27 among AID-enrolled inpatients, which is suggestive of considerable clustering of inpatient MEs within a medical institution [ 43].
However, community level random effects are significant; the residual intra-class correlation is still appreciably large, indicating that even after controlling for individual, communal (kebele) level factors, there is still a considerable clustering of antenatal service utilization at the community (kebele) level.
