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As we have demonstrated, risk adjustment had a marked impact on hospital ranking, since a larger share of hospitals shifted to a different quartile of hospital mortality rate after adjustment.
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In a recent study by Boyer et al. [ 21], efficacy of ranibizumab did not appear to differ across the different quartiles of duration of NV-AMD, which is the opposite of what we found in this study with pegaptanib administration.
There were no significant differences in total energy intake in the different quartiles of total physical activity.
No significant differences in cognitive or functional changes were found among the patients in the different quartiles of the plasma concentration.
The last four rows of Table 8 illustrate the distributional effects by showing the graduation gains from matching for different quartiles of the academic index.
In the first specification, we consider the different quartiles of the same personality trait (effort and external locus of control) as separate treatments, and therefore we compare youths who are, for example, in the bottom quartile of the effort scale with similar youths who are in higher quartiles of the distribution of the same index.
An evaluation of the frequency of cancer mortality in the different quartiles of serum Se has also been performed.
The incidence of breast cancer per 100,000 person-years was calculated in different quartiles of T3 and TSH.
Baseline characteristics in different quartiles of weight loss were mostly evenly distributed with respect to age and known diabetes duration.
The prevalence of different quartiles of days of drinking wine/month is given as the number (percentage) of smokers corresponding to the given heading.
To investigate the exposure-response association, the relative prevalence of hypertension is shown for different quartiles of road traffic noise at different frequency bands of the noise spectrum.
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CEO of Professional Science Editing for Scientists @ prosciediting.com