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For the inverse problem dealing with the discontinuous constraints defined by proportion rates, the global stability of solutions of the hybrid system can be proved theoretically using the tool of the Lyapunov theorem.
The data were described by uni- and bivariate frequency distributions and the prevalence proportion rates of dental caries and gingival bleeding were calculated.
Values are shown as means± SD. *Comparison of means using 2 sample independent t-test procedure (Bosner 1995); †comparison of proportion rates using two sample binomial test for differences in proportions (Bosner 1995).
The two-tailed chi-square test was used to analyze differences in proportion rates and the Mann-Whitney U test was used to analyze differences in medians among groups.
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But Mr. Obama enjoyed a double-digit edge in the proportion rating him highly for "sharing your positions on the issues".
Some 42% of the SCRs were found to be of a good standard, with the same proportion rated as adequate.
More of the public expresses a view either way on the prime minister than the leader of the opposition, so it is also important to look at each leader's net score – the proportion rating them well, less the proportion who rate them badly.
Thus RII > 1 indicates a higher proportion rating poor health among populations of lower socioeconomic status.
Table 2 shows the association between respondent characteristics and the proportion rating haemodialysis care as excellent.
It has been reported that the admixture proportion rate is different across the African-American population (26, 27).
This was reflected in the significantly lower proportion rating labour and birth care as good or better (80% vs. 94%).
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