Abstract In 1998, the Florida Department of Health undertook a self-administered school-
based survey of tobacco use, attitudes, and behaviors among nearly 23, 000 public school …

This article presents mean and prevalence rates for demographic and smoking history
characteristics for US current smokers based on the 2000 National Health Interview Survey …

Introduction: One major determinant of external validity is the representativeness of the
sample. This article provides data to help authors and readers assess the generalizability of …

PURPOSE: A common problem in diagnostic research is that the reference standard has not
been carried out in all patients. This partial verification may lead to biased accuracy …

It is recognized that very large sample sizes capable of providing adequate statistical power
are required to properly investigate and understand the role and interaction of genetic …

This commentary argues for clinical, public health, and health science journals routinely to
invite authors to make data and statistical analysis command files underlying the findings …

Self report measures of smoking may contain substantial measurement error. If these errors
are nonrandom, then they may be correlated with substantive variables in epidemiologic or …

BACKGROUND:: Response rates have been declining in statewide tobacco surveys. This
study investigated whether there was associated evidence of increasing bias in smoking …

Quantitative bias analysis comprises the tools used to estimate the direction, magnitude, and
uncertainty from systematic errors affecting epidemiologic research. Despite the availability …

Objectives: This study was conducted to estimate the unbiased smoking prevalence and its
standard errors among adolescents in a large city in Korea, by designbased analysis …