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However, the drop in performance varied depending on the sample and risk adjustment method.
Regression coefficients were estimated for the multivariable model including all variables using the training sample, and risk scores were predicted for the remaining tenth subsample (the test sample).
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Moreover, using mortality as an outcome measure requires larger samples and risk adjustment for fair comparison among providers and organizations [38].
In conclusion, we observed no associations between telomere length in these samples and risk of low- or high-grade dysplasia, so our study provides little support for this approach.
A recent study [ 26], carried out in Finland, examined 110 cases of soft tissue sarcoma and 227 hospital controls; exposure to dioxin was measured using the concentrations found in sub-cutaneous fat samples and risk did not increase with exposure; rather, the lowest level showed the highest risk in all types of analysis.
Finally, exploratory epistatic analyses demonstrated potential interactive effects, especially regarding variations in CACNA1C and CHRNA7.Limited sample size and risk of false-positive findings.Our data suggest a possible role of these 3 genes in BPD.
This was mainly due to small sample sizes and risk of bias within studies.
We responded to an outbreak among Peruvian Army personnel returning from short-term training in the Amazon, conducting active case detection, lesion sample collection, and risk factor assessment.
In both 10fCV and independent validation, a testing sample score was considered as high risk, if it was higher than the median score of the training sample and low risk otherwise.
The relationship between HPV prevalence based on a single sample and lifelong risk of infection is not known.
Limitations of the current study include the selectivity of the sample and the risk of socially desirable answers that is inherent in interviews.
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