Triggering of ventricular ectopic beats by emotional, physical, and meteorologic stress: role of age, sex, medications, and chronic risk factors.

Aim: To investigate the association of a single ventricular ectopic beat with physical, emotional, or meteorologic stress and the role of age, sex, antiarrhythmic and other medicament therapy and participant characteristics.

Methods: The study included 457 participants who were consecutively assigned to undergo continuous 24-hour Holter monitoring and who completed a structured questionnaire about their physical activity and mental stress. Multiple regression analysis of data on 11 meteorologic parameters, participants' baseline characteristics, and medications they used was performed for subgroups according to sex and age, with 65 years as age limit.

Symptom presentation of acute myocardial infarction: influence of sex, age, and risk factors.

Objectives: The purpose of this study was to examine the symptomatology of onset of acute myocardial infarction (AMI) in patients according to sex, age, and existence of conventional risk factors.

Background: Some studies have suggested that sex and other patient characteristics may influence symptoms in AMI, but data were limited and conflicting.

Methods: This was a prospective, observational study of a large number of symptoms in 1996 patients admitted to Clinical Hospital Split between January 1990 and July 1995 as the result of a first AMI.