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Despite the comparatively small difference in values of the microhardness of the tested coatings, their service life under a pin-on-disk test varied by a factor of about 40.
Performance of the rapid test varied by day of presentation, with a sensitivity of 41.7% (95% CI 22.1, 63.4) for samples from children presenting on the day of symptom onset and a sensitivity of 72.1% (95% CI 59.9, 82.3) for samples from children presenting one or more days post-symptom onset.
The proportion of women contacted who agreed to test varied by age-group, parity, residency location and clinic catchment (all p < 0.001).
The sensitivity, specificity, positive predictive value, positive and negative likelihood ratios, number needed to screen and number needed to test varied by threshold and curve source (Tables 2 and 3).
Within an individual, the allele frequency values can be 0, 0.55, 0.75 0.75, or 1 for A and B. The allele frequency test used one degree of freedom, and degrees of freedom used in genotype frequency test varied by how many marker classes were present, with a maximum of four degrees of freedom.
Allele and genotype frequencies were calculated using the diploid model and individual allele frequency values could be 0, 0.5, or 1 for A and B. The allele frequency test used one degree of freedom, and degrees of freedom used in the genotype frequency test varied by how many marker classes were present, with a maximum of two degrees of freedom.
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Predictors of testing varied by gender and therefore are presented separately.
Timely uACR testing varied by year, with a sharp rise in proportion in 2009 (when uACR policy changed).
Some provinces also tested for seasonal influenza A (subtypes H1N1 and H3N2) and, after 2009, pandemic H1N1 2009 and B viruses, but this testing varied by province.
Additional testing varied by study year to reduce respondent burden; these included fasting serum glucose, oral glucose tolerance testing (when indicated), and 24 hour urine collection.
Notably, among the 99 strains characterized, ABR across the frequencies tested varied by two-fold to five-fold, strongly suggesting a complex underlying genetic architecture.
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