… b Overall P value for the model for the test of the hypothesis that none of the covariates are
… e The P value is for the test of the null hypothesis that there is no association between the …

… professor of epidemiology3, S Sridhar research associate4, S Habermann junior doctor2,
L Snell junior doctor2, P Mangtani senior lecturer3, I Adetifa paediatrician and medical …

BACKGROUND Recent evidence suggests that the duration of protection by bacillus
Calmette-Guérin (BCG) may exceed previous estimates with potential implications for estimating …

Objective To examine the determinants of vulnerability to winter mortality in elderly British
people. Design Population based cohort study (119 389 person years of follow up). Setting …

In several countries, pregnant women are recommended seasonal influenza vaccination
and identified as a priority group for vaccination in the event of a pandemic. We review the …

Vaccine-preventable infectious diseases are responsible for significant maternal, neonatal,
and young infant morbidity and mortality. While there is emerging scientific evidence, as well …

Background Data are limited regarding cancer incidence among Indians residing in different
geographic regions around the world. Examining such rates may provide us with insights …

… We obtained p values using Wald or likelihood ratio tests as appropriate. We assessed the
proportional hazard assumption graphically using Nelson-Aalen cumulative hazard plots. We …

Self-report of polysaccharide pneumococcal vaccination is not thought reliable because of
the increased risk of adverse events from inadvertent re-vaccination in elderly people. Some …

Objective To review the effects of school closures on pandemic and seasonal influenza
outbreaks. Design Systematic review. Data sources MEDLINE and EMBASE, reference lists of …