How well do the theory of reasoned action and theory of planned behaviour predict intentions and attendance at screening programmes? A meta-analysis

Meta-analysis was used to quantify how well the Theories of Reasoned Action and Planned Behaviour have predicted intentions to attend screening programmes and actual attendance behaviour. Systematic literature searches identified 33 studies that were included in the review. Across the studies as a whole, attitudes had a large-sized relationship with intention, while subjective norms and perceived behavioural control (PBC) possessed medium-sized relationships with intention. Intention had a medium-sized relationship with attendance, whereas the PBC-attendance relationship was small sized. Due to heterogeneity in results between studies, moderator analyses were conducted. The moderator variables were (a) type of screening test, (b) location of recruitment, (c) screening cost and (d) invitation to screen. All moderators affected theory of planned behaviour relationships. Suggestions for future research emerging from these results include targeting attitudes to promote intention to screen, a greater use of implementation intentions in screening information and examining the credibility of different screening providers

Lung cancer in African Americans. A call for action.

Abstract available at publisher's website

Sociodemographic predictors of adherence to annual cervical cancer screening in minority women.

The Papanicolaou (Pap) test is an effective screening mechanism for reducing morbidity and mortality from cervical cancer. Nevertheless, Pennsylvania ranks fifth in national cervical cancer incidence and fourth in national cervical cancer mortality, with a significant number of cases contributed by Philadelphia. Substantial subgroups of American women, specifically ethnic minorities, the elderly, the uninsured, and the poor, have not been screened or are not screened at regular intervals. A secondary data analysis was conducted to test whether age, income, insurance coverage, marital status, level of education, and number of persons living at home could predict whether a woman among convenience sample of 204 black and Hispanic women adhered to annual Pap testing. A woman was considered adherent to annual Pap testing if she reported undergoing a Pap smear in the 14 months preceding her enrollment in the study. African American woman who were high school graduates and had insurance coverage were more likely to be adherent to annual Pap testing. Hispanic women older than 50 years and born outside the mainland United States were less likely to be adherent to annual Pap testing. Findings suggest that cancer nurses working to promote cervical cancer screening in Philadelphia should continue to target at-risk populations, specifically uninsured and less-educated black and Hispanic women older than 50 years who were born outside the mainland United States

Nourishment of perched sand dunes and the issue of erosion control in the Great Lakes

Although limited in coverage, perched sand dunes situated on high coastal bluffs are considered the most prized of Great Lakes dunes. Grand Sable Dunes on Lake Superior and Sleeping Bear Dunes on Lake Michigan are featured attractions of national lakeshores under National Park Service management. The source of sand for perched dunes is the high bluff along their lakeward edge. As onshore wind crosses the bluff, flow is accelerated upslope, resulting in greatly elevated levels of wind stress over the slope brow. On barren, sandy bluffs, wind erosion is concentrated in the brow zone, and for the Grand Sable Bluff, it averaged 1 m 3 /yr per linear meter along the highest sections for the period 1973–1983. This mechanism accounts for about 6,500 m 3 of sand nourishment to the dunefield annually and clearly has been the predominant mechanism for the long-term development of the dunefield. However, wind erosion and dune nourishment are possible only where the bluff is denuded of plant cover by mass movements and related processes induced by wave erosion. In the Great Lakes, wave erosion and bluff retreat vary with lake levels; the nourishment of perched dunes is favored by high levels. Lake levels have been relatively high for the past 50 years, and shore erosion has become a major environmental issue leading property owners and politicians to support lake-level regulation. Trimming high water levels could reduce geomorphic activity on high bluffs and affect dune nourishment rates. Locally, nourishment also may be influenced by sediment accumulation associated with harbor protection facilities and by planting programs aimed at stabilizing dunes.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46766/1/254_2005_Article_BF01890382.pd