A specific test of the difference of differences in infection between pruned and unpruned trees at the start and end of the study provided some limited evidence of an increase in infection in pruned relative to unpruned trees χ 1 2 = 3.26, p = 0.071.
For Cryptosporidiosis, univariate analysis did not show any significant differences in infection between males and females, p = 0.977, however, HIV seropositive children were three times more likely to be infected with Cryptosporidium spp. than the HIV seronegative ones (OR 3.07, 95% CI 2.19-4.32) p < 0.001.
A difference in infection rate between both groups emerged between day 2 and 4 and was maintained until day 11 after stroke onset (data not shown).
Twenty-three (14.5%) of the 165 ground foragers and 8 (16%) of the 50 birds from the other group carried infected larvae, resulting in no difference in infection ratio between the groups [OR = 1.2; CI 0.5 2.8].
In contrast, should an ITT analysis conclude no difference in infection rates between the active and placebo arms, several substantially different explanations may exist.
We found a low effective reproductive number (R e = 1.06), an age-class distribution of infected individuals (skewed towards ages 18-25), at-risk social groups (soldiers and ultra Orthodox Jews), and significant differences in infections between sexes (skewed towards males).
"In Botswana, a small country with very good infrastructure and a lot of people living near the roads," Mr. Schwartlander said, "there's no difference in infection rates between urban and rural areas.
However, this difference in infection rates between the two groups was not statistically significant (p = 0.495).
However, there was no difference in infection rate between the titanium control and tantalum groups (p = 0.230).
According to the results of the present study, there was no significant difference in infection rate between patients with bone grafts and those without bone grafts.
