Association of physical activity with body mass index, waist circumference and incidence of obesity in older adults.

Background: There is limited, and inconsistent, data on the prospective association between physical activity and surrogate markers of adiposity in older adults. We aim to determine the prospective association of leisure time physical activity (LTPA) with body mass index (BMI), waist circumference (WC) and the incidence of obesity.

Methods: This prospective analysis included 7144 individuals with a mean age of 67 ± 6.

[Epistemology as health research propedeutics].

The present article advocates the need for epistemological training prior to the study of biostatistics and epidemiology. Taking Plato as the starting point, we reached this conclusion after analysis of the paradigm problems affecting biostatistics and the connotations of causality and research time in major epidemiological designs. External validity is intimately linked to the philosophical problem of induction.

Multivariate explanatory model for sporadic carcinoma of the colon in Dukes' stages I and IIa.

Objective: We obtained before an explanatory model with six dependant variables: age of the patient, total cholesterol (TC), HDL cholesterol (HDL-C), VLDL cholesterol (VLDL-C), alkaline phosphatase (AP) and the CA 19.9 tumour marker. Our objective in this study was to validate the model by means of the acquisition of new records for an additional analysis.

[1991-2004 follow-up of a Spanish general population cohort. Mortality and raising risk factors in the DRECE III Study (Diet and Risk of Cardiovascular Diseases in Spain)].

Background: The DRECE III study is based on the follow up of a cohort representative of the Spanish general population. The mortality, its main causes and relevant risk factors have been analyzed.

Methods: The DRECE cohort is composed of 4783 subjects followed since 1991 to 2004 (70930 person-years).

[Ambulatory blood pressure monitoring to study white coat syndrome in patients with hypertension seen in primary care].

Introduction And Objectives: The white coat phenomenon is said to occur when the difference between systolic/diastolic blood pressure measured during visits to the doctor's office and in ambulatory recordings is greater than 20/10. These absolute differences, known as the white coat effect, may lead to normotensive patients being classified as having white coat hypertension (WCH). We used ambulatory blood pressure monitoring (ABPM) to monitor the prevalence and response (white coat effect, white coat hypertension or white coat phenomenon) in patients during pharmacological treatment for grade 1 or 2 hypertension, and 4 weeks after treatment was suspended under medical supervision.

[Influence on white coat effect and heart rate of antihypertensive agents used at a urban health center].

Background: We name white coat effect (WCE) to the difference between the systolic arterial pressure (SAP)/diastolic AP (DAP) of consulting room and the ambulatory obtained one with ambulatory blood pressure monitoring (ABPM). In our work we analyzed by means of ABPM, the influence of the antihypertensive medicaments on the WCE and the cardiac frequency of use of the antihypertensive ones.

Design: Almost experimental study (with a period before and a period later) and descriptive.