a. Each cell represents the RR and 9% CI for a separate meta- computed using the metan random effects model in Stata. The historical comparisons included some studies with prevalence-based breast canc
Background The combination of asthma and chronic obstructive pulmonary disease (COPD), or ACOS is a recently defined syndrome. The epidemiology of the condition is poorly described and previous resear
Outcomes include prevalence of Campylobacter ssp. in the sample, association measures (Odds Ratio based on sampling and Odds Ratio based on questionnaires to establish the presence or absence of risk