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PubMed2004

Communicating cardiovascular disease risk due to elevated homocysteine levels: using the EPPM to develop print materials.

Improving the effectiveness of written information to promote compliance with therapeutic regimens is essential, particularly among older adults. Guiding their development and evaluating their effectiveness with an accepted communication theory or model may help. A preliminary test of written materials developed within the context of the Extended Parallel Process Model (EPPM) to motivate compliant behaviors among older adults at risk for cardiovascular disease is described. Participants who were not previously following the recommendations felt more confident in their ability to do so after reading a high-threat/high-efficacy message. Advanced age, lower education level, an existing chronic illness, and a higher initial homocysteine level were factors associated with lower levels of perceived threat and/or fear and may have attenuated the effectiveness of the message. This study's results contribute to our understanding of the usefulness of theory-guided written materials in motivating compliant health behaviors. Recommendations for using this model are provided.

Cardiovascular Diseases↗
PubMed1991

Risk information for public consumption: print media coverage of two risky situations.

This study examines (1) the extent to which newspaper and magazine coverage of two risky situations included the kinds of cognitive information about risks that would help readers make risk judgments and (2) the extent to which the scientific sophistication of the audience would influence such inclusion. The two situations were a nuclear power plant accident that released a small amount of radioactive steam into the atmosphere and a report in the New England Journal of Medicine about a potential relationship between coffee consumption and pancreatic cancer. Stories about each topic in trade magazines, popular science magazines, general magazines, and both prestige and more typical daily newspapers were examined to determine the nature and extent of risk information included. The analysis found more detailed risk information in these stories than has been found in past studies, but it also suggested that sophistication of audience was not a good predictor of the presence/absence of such information. The most pronounced differences in communication strategies were found instead between topics, not across types of media. Closer examination of individual stories suggests that the variance may be attributable to differences in the way stories about the two incidents were framed by journalists.

Accidents↗
PubMed1998

Organizing pneumonia in textile printing workers: a clinical description.

In April 1992 an outbreak of severe respiratory illness occurred among aerographic textile workers in the area of Alcoi, Autonomous Community of Valencia, Spain. An epidemiological study linked this outbreak to the use of a reformulated aerosolized product, Acramin-FWN. We analyzed clinical, laboratory, and pathological data of the first 14 patients with confirmed organizing pneumonia (OP) secondary to this newly recognized occupational toxicant. The mean age of the patients was 30 yrs. The most common clinical findings were cough (86%), epistaxis (71%), dyspnoea (64%), oppressive chest pain (57%), and crackles (50%). A restrictive functional pattern was evident in 64%. Radiographic findings consisted predominantly of patchy infiltrates in 65% and a micronodular pattern in 35%. Treatment with corticosteroids did not prevent initial progression in 11 of the 14 patients and development of irreversible respiratory failure in five patients. At necropsy, besides features of OP, interstitial fibrosis and diffuse alveolar damage were evident. A low total lung capacity, the presence of crackles at admission, and increases in the alveolar-arterial oxygen difference were predictive of death. The organizing pneumonia caused by the inhalation of Acramin-FWN is characterized by a tendency to evolve into progressive interstitial fibrosis despite the use of corticosteroids. The illness is restricted to the respiratory system and once respiratory failure has developed the prognosis is poor.

Adipates↗
PubMedDate not supplied

Research briefs reading grade level and readability of printed cancer education materials.

PURPOSE/OBJECTIVES: To analyze cancer brochures to estimate their reading level and assess their readability. DESIGN: Quantitative. SAMPLE: 10 cancer brochures published by various cancer organizations. METHODS: SMOG was used to estimate reading grade level of the brochures; the Readability Assessment Instrument (RAIN) was used to analyze the brochures in terms of 14 variables that affect comprehension. Interrater reliability was computed for reading grade level and readability level. MAIN RESEARCH VARIABLES: Reading grade level and readability. FINDINGS: Reading grade level of the brochures ranged from 9-15. The RAIN analysis showed that the number of variables incorporated across the 10 brochures ranged from 12-14, and the number of variables reaching readability criteria ranged from 6-8. CONCLUSIONS: Cancer education materials are written at levels that may be too high for the average reader. These materials also may be difficult to understand because of the way they are written. Materials need to be written so that they match the reading levels of patients with cancer and the general public and incorporate more of the variables that affect comprehension so that readers can understand them easily. IMPLICATIONS FOR NURSING: Nurses use written education materials to inform patients about their cancer diagnoses. They can conduct a comprehensive analysis of cancer brochures using SMOG and RAIN and then, if needed, use this information to revise the brochures so that they can be understood easily. If possible, patients who are going to be using the materials should be involved in the revision process.

Comprehension↗
PubMed1988

Atrioventricular nodal function in the immature canine heart [corrected and republished article orginally printed in Pediatr Res 1987 Nov;22(5):616-20].

Previous studies have suggested that the atrioventricular nodal functional refractory period in the neonate is equal to or shorter than that of the ventricle, providing little or no protection to the ventricle against rapid atrial rates and allowing closely coupled atrial beats to fall within the ventricular vulnerable period. We evaluated atrioventricular node function in 21 mongrel neonatal puppies, 3-15 days old, and 15 adult dogs utilizing intracardiac His bundle recording and stimulation techniques. The mean atrioventricular nodal functional refractory period (173.1 +/- 20.0 ms) exceeded both the ventricular effective refractory period (139.5 +/- 14.3) and ventricular functional refractory period (163.3 +/- 14.5) in the neonates. Furthermore, the atrioventricular node was the site of limiting antegrade conduction in all neonates. No ventricular arrhythmias were induced by atrial extrastimulation in any of the neonates. The site of conduction delay during atrial extrastimulation was confined to the atrioventricular node in 15/16 neonates (94%) while 1/16 (6%) had combined nodal and infranodal delay. The neonates developed Wenckebach, at significantly faster heart rates than the adults, but both groups developed Wenckebach at approximately twice the resting heart rate. Retrograde conduction was a consistent finding in the neonates. However, antegrade Wenckebach occurred at a significantly faster heart rate than retrograde Wenckebach suggesting different functional properties. Our data suggest that in the neonatal canine, the atrioventricular node functional refractory period is longer than both the ventricular effective refractory period and ventricular functional refractory period. Furthermore, the degree of protection offered by the neonatal atrioventricular node to the ventricle appears to be comparable to that of the adult.

Animals↗
PubMed2006

The portrayal of heart disease in mass print magazines, 1991-2001.

In this article we discuss the portrayal of heart disease based on a content analysis of the highest circulating English-language magazines available in Canada and published in Canada or the United States in 1991, 1996, and 2001. It includes both manifest and latent content analysis. In terms of the manifest analysis, the findings indicate the dominance of the medical frame followed by lifestyle and social structural frames. The latent analysis reveals the following frames: (a) optimism about medicine; (b) medicine as "good" and, by contrast, the body as "bad"; (c) heart disease as an "attack"; (d) heart disease as an individual responsibility; (e) contradictory information; (f) male celebrity patients and doctors; and (g) prestigious medical doctors, journals, and institutions. The medicalized portrayal of heart disease as fear generating is considered. In addition, the lack of attention to social structural causation in contrast to current epidemiological findings is discussed.

Canada↗
PubMed1997

Fish foot prints: morphology and energetics of the wake behind a continuously swimming mullet (Chelon labrosus Risso).

The structure of the wake behind a continuously swimming mullet was analysed qualitatively and quantitatively by applying two-dimensional particle image velocimetry. A detailed analysis of the flow pattern and of the swimming movements of the fish allowed us to derive a kinematic explanation of the flow pattern as well as an estimate of the relative contributions of the body and the tail to thrust production. During active propulsion, the undulatory swimming fish shed a wake consisting in the medio-frontal plane of a rearward, zigzagging jet flow between alternating vortices. The fish shed one vortex per half tailbeat when the tail reached its most lateral position. Part of the circulation shed in the vortices had been generated previously on the body by the transverse body wave travelling down the body. This undulatory pump mechanism accounted for less than half of the energy shed in the wake. The remainder was generated by the tail. The vortex spacing matched the tailbeat amplitude and the stride length.

Journal Article↗