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OBJECTIVES This study examined the effect of perceived need on exercise and healthy eating using the theory of planned behaviour (TPB). In addition, it investigated the determinants of perceived need. METHOD Participants completed a questionnaire measuring components of TPB and perceived need. A follow-up questionnaire 1 week later measured behaviour. The(More)
BACKGROUND Pulmonary rehabilitation seems to be an effective intervention in patients with chronic obstructive pulmonary disease. We undertook a randomised controlled trial to assess the effect of outpatient pulmonary rehabilitation on use of health care and patients' wellbeing over 1 year. METHODS 200 patients with disabling chronic lung disease (the(More)
BACKGROUND Homocysteine is a risk factor for coronary artery disease (CAD), although a causal relation remains to be proven. The importance of determining direct causality rests in the fact that plasma homocysteine can be safely and inexpensively reduced by 25% with folic acid. This reduction is maximally achieved by doses of 0.4 mg/d. High-dose folic acid(More)
Using the theoretical context of the Theory of Planned Behaviour, this study examined whether work has a disruptive influence on people's ability to carry out their daily intentions to exercise, and whether daily planning helps overcome this. A daily questionnaire was completed by 42 employees for 14 days. A brief daily planning intervention was(More)
Research examining the impact of work on health behaviours has rarely provided a complete picture of the impact across health behaviours. Twenty-four employees were interviewed about their smoking, drinking, exercise and eating. Themes included the impact of the work environment, including policy, convenience and workplace cultural norms; business events(More)
The theory of planned behavior (TPB) and R. A. Karasek's (1979) job strain model were used to investigate the predictors of exercise in a group of employees. A total of 241 employees completed an initial questionnaire; 1 week later 213 employees responded to a questionnaire measuring behavior. Employees in high-strain jobs did significantly less exercise(More)
AIMS Off-line post-processing of colour tissue Doppler from digital loops may allow objective quantification of dobutamine stress echocardiography. We assessed the reproducibility of off-line measurements of regional myocardial velocities. METHODS AND RESULTS Nine observers analysed 10 studies, each making 2400 observations. Coefficients of variation in(More)
The prevention of coronary heart disease would represent a major saving to the NHS. Systematic review of evidence relating to screening for CHD and its prevention suggests that blood cholesterol measurement on its own is a poor predictor of risk. The evidence suggests that lifestyle changes and drug treatments other than cholesterol-lowering drugs are the(More)
OBJECTIVE To determine the most important inflammatory and hematologic predictors of thromboembolism (TE) in patients undergoing valve replacement (VR) to be used in conjunction with clinical risk factors for preoperative risk profiling. METHODS AND RESULTS Preoperative and immediately postoperative clinical, echocardiographic, hematologic, biochemical(More)
OBJECTIVES To estimate the cost effectiveness of statin treatment in preventing coronary heart disease (CHD) and to examine the effect of the CHD risk level targeted and the cost of statins on the cost effectiveness of treatment. DESIGN Cohort life table method using data from outcome trials. MAIN OUTCOME MEASURES The cost per life year gained for(More)