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Exact(5)
For large numbers both models give identical results, otherwise Chapman's values are slightly lower.
Both models give identical results if the speeds of the scatterers are set to zero.
Comparison of Figs. 5 and 6 reveals that beam accelerations computed from the Svinos and Gibbs models give identical results; the complexity and calculation demand, however, of the two approaches are widely different.
While WC1 and WC2 models give identical estimated exposure effects, they yield different standard errors and thus CI.
The crude rate ratios indicate a similar intervention effect on falls 2 and 3. * fall rate measured per 1000 person-days † RR = rate ratio As expected, the rate ratios for the first fall from the conditional models give identical estimates, 0.68 (95% CI 0.57 0.83), since the total follow-up time and gap time to first falls refer to the same period (Table 8).
Similar(55)
Note, however, that using a random effects model gave identical results.
Allowing for overdispersion or autocorrelation was possible with the conditional Poisson model but when not required this model gave identical estimates to those from conditional logistic regression.
The relationships between sunlight exposure, depression, and cognitive impairment were unchanged when season was added to the model, giving identical predicted probabilities as in Figure 1.
Where both can be fit, the conditional Poisson model gives identical estimates and inferences to the unconditional Poisson model and hence to the conditional logistic model (illustrated in the Results section).
There is no reason to believe that the estimates from these two models should give identical or directly comparable results, because the sibling-fixed effects model exploits within-family variation, whereas the baseline OLS captures the total within- and between-family variation.
Models 1 and 2 give identical estimates, because the Andersen-Gill model estimates the total effect without bias, even without incorporating a frailty term, as discussed above.
Related(20)
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