Exact(19)
While comparing prevalence of hypertension, increase in age and women appeared as common positive predictors.
We tested two approaches: SDRM transmission ratios and robust linear regression comparing prevalence of SDRMs in drug-naive and treatment-failing patients.
Finally, differences in proportions, comparing prevalence of GI symptoms for those with or without a history of painful menses, were assessed for statistical significance using Fisher's exact test.
Differences in proportions, comparing prevalence of GI and emotional symptoms between the two menstrual phases, were assessed for statistical significance with Fisher's exact test.
Well-designed and carefully implemented cross-sectional studies comparing prevalence of asthma or respiratory biomarkers among children with different types of activities, swimming pools, and measured exposure levels may be sufficient for hypothesis screening.
*All of the differences comparing prevalence of comorbid conditions between commercial and Medicare populations were significant (p < 0.01), using two-tailed, chi-squared analysis, except for those indicated by italic text.
Similar(41)
Few studies comparing prevalences of different genotypes between age groups exist, and contradicting results regarding the impact of certain genotypes on longevity were reported [ 16- 19].
The few studies comparing prevalences of lameness in free-range and conventional pigs have reported inconsistent results [ 9– 12] and have not clarified the etiology of the lameness.
Looking only at the medians without at least comparing whole distributions is not a good way to compare prevalence of intrinsic disorder in two classes/sets of genes.
To compare prevalence of carotid artery disease and its various types of lesions in different types of ocular arterial occlusive disorders.
However, to date, prevalence estimates have been based on non-representative samples and internationally no studies have compared prevalence of overweight and obesity among nurses to other healthcare professionals using representative data.
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