BackgroundWe describe the increased risk of premature death from natural and from
unnatural causes for the common mental disorders. MethodWith a Medline search (1966 …

In previous articles we have focused on the potentials, principles, and pitfalls of meta-
analysis of randomised controlled trials. 1 2 3 4 5 Meta-analysis of observational data is …

Method We searchedthe medical literature to find reports on the mortality ofmental disorders.
Englishlanguage reports were locatedon MEDLINE (1966— 993) withthe searchterms' …

Context Colorectal cancer is the third most common form of cancer and the fourth most
frequent cause of cancer deaths worldwide. The association between cigarette smoking and …

Objective: To compare risk of myocardial infarction associated with smoking in men and
women, taking into consideration differences in smoking behaviour and a number of …

The association between cigarette smoking and colorectal cancer (CRC) has been
controversial. To synthesize the available data, we conducted a comprehensive meta …

Abstract Background/Aim Smoking is a recognized risk factor for pancreatic cancer. The aim
of this study was to perform a meta-analysis to provide a robust estimate of the strength of …

Background The relationship between active cigarette smoking and breast cancer risk
remains controversial because of unresolved issues of confounding and dose response …

Objective We conducted a systematic review of studies addressing the relation between
cigarette smoking and gastric cancer to estimate the magnitude of the association for …

Objectives: To determine the risk in men and women smoking 1–4 cigarettes per day of
dying from specified smoking related diseases and from any cause. Design: Prospective …