Researchers estimated the prevalence of pertussis infection in school age children after implementation of the preschool pertussis booster vaccination in the UK in October 2001. A prospective cohort study design was used. Children aged 5-15 years who presented with persistent cough in primary care were...
Cohort StudiesSample SizeNumbers Needed To TreatResearchers estimated the prevalence of pertussis infection in school age children after implementation of the preschool pertussis booster vaccination in the UK in October 2001. A prospective cohort study design was used. Children aged 5-15 years who ...
respectively. However, these observations are inconclusive as there was only one RCT and one cohort study reported lifetime and past month prevalence, respectively. Pooled estimates of lifetime and 1 month AI practice was higher when the word...
0-5: how small children make a big difference 来自 twfold.theworkfoundation.com 喜欢 0 阅读量: 66 作者: A Sinclair 摘要: Alan Sinclair would like to thank for following for all their help in the preparation of this report; Andy Bevan, Stephen Bevan, Stephen Boyle, John Carnochan, ...
MN Lassere,J Rappo,IJ Portek,A Sturgess,JP Edmonds 摘要: BackgroundThere is an excess of mortality in patients with rheumatoid arthritis (RA) but no long-term Australian cohort data.AimsTo determine median life years lost, all-cause standardised mortality ratio (SMR) and cause-specific SMR, ...
For many thousands of years, there were fewer people roaming the Earth than would live in a mid-sized city today. But this does raise an interesting question, though: over the long arc of human history, how many people have ever lived? The unique and powerful visualization above, from the...
Using a basis of eight key dates in the history of Homo sapiens, and assuming exponential growth between them, the author calculates that 50 billion people have been born between human origin 300,000 years ago and the present (1980). He provides equations for obtaining a rough population estim...
As stroke has become the leading cause of death and disability in China, it has induced a heavy disease burden on society, families, and patients. Despite much attention within the literature, the effect of multiple risk factors on length of stay (LOS) a
A high retention rate means your current customers value your product and are providing a sustainable source of revenue. A low retention rate means customers are leaving, which can undermine your growth efforts, no matter how many new customers you acquire. Some customer turnover is inevitable—...
Traveling and focusing on personal development are common ways students spend their gap year. While many students head directly to college after graduating from high school, a smaller cohort chooses an alternative: a gap year. What may have previously been seen as an unconventional path...