Exact(1)
Odds ratios (ORs) with 95% confidence intervals were compiled using logistic regression (SAS version 9.3), and the cluster of respondents showing the most favourable (protective) health-related behaviours was used as reference group.
Similar(59)
Generalized estimating equations were used to account for the clustering of respondents in census tracts.
Figure 10 Factor scores and outcome satisfaction ratings for three clusters of respondents.
In this study, the intention was to find clusters of respondents who differed in terms of their attitudes to collaborative research (using their factor scores) and then explore whether these clusters also varied according to their goals, satisfaction and achievement ratings, personal characteristics and project characteristics.
The exit survey model was corrected to account for clustering of respondents by physician.
A random effect term was included at the region level to account for clustering of respondents within regional cancer programs.
The latent class model identified three clusters of respondents with specific attitudes concerning specialist care (figure 1).
These effects, however, were only significant for men, not for women.> > -wrap-foot> Robustandardard errors are corrected for the clustering of respondents in country period combinations.
These analyses used the XTMIXED module in STATA 9.2 to take account for clustering of respondents within physicians using random effects.
Multilevel regression models that used random effects to account for the clustering of respondents within physicians were used to predict mean scores.
We linked individual-level data on self-reported symptoms and diseases (and confounding variables) to residential exposure estimates from a validated land-use regression model and accounted for spatial clustering of respondents.
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