However, in our opinion, the study has some important limitations: According to the protocol (NCT00322530), the authors aimed to enroll 100 patients per group, a sample size that may be justified only for an anticipated (but unlikely) mortality difference of roughly 20%.
9 Pneumococcal pneumonia carries a mortality of about 10 15% with slightly higher mortality in patients with bacteraemic pneumococcal pneumonia, 10 14 which has been roughly unchanged since the advent of antibiotic therapy.
For illustration purposes, a total sample of 2264 patients would provide 80% power to detect a constant Hazard ratio (HR) of 0.76 for one-year mortality between two groups of roughly equal size, based on the log-rank test.
Results: Different combinations of methodological choices produced a range of estimates of national O3-related mortality from roughly 600 deaths avoided as a result of climate change to 2,500 deaths attributable to climate change (although the large majority produced increases in mortality).
A cohort study based in the United States found that the risk of mortality after a median follow-up of roughly two years was 2.5 times higher in those with a lower omega-3 index compared to those with a higher omega-3 index (HR 2.48, 95%% CI 0.88 6.95) [ 12].
However, they provide a useful first indication how each approach deals with (ir)regular mortality developments in a medium forecast horizon of roughly 20 years.
In other words, infant mortality rates would cycle on a period of roughly one year.
In the context of H1N1pdm09 influenza, children with existing illness appear to have had the highest mortality risk: roughly two thirds of children who died after having H1N1pdm09 infections had co-morbidities [ 17, 29, 105].
In 2002, a scholarly review of research on clergy mortality found that Catholic nuns have an advantage of roughly 20%to25%5% over the general population.
That's a significant increase in mortality risk, roughly equivalent to the risk of drinking several units of alcohol per day, though less than the mortality risk that comes from smoking.
