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Skin Cancer: Multicomponent Community-Wide Interventions

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What the Task Force Found

About The Systematic Review

The Task Force finding is based on evidence from a Community Guide systematic review published in 2004 (Saraiya et al., 4 studies; search period January 1966 – June 2000) combined with more recent evidence (3 studies, search period June 2000 – May 2011). The systematic review was conducted on behalf of the Task Force by a team of specialists in systematic review methods, and in research, practice, and policy related to preventing skin cancer. This finding updates and replaces the 2003 Task Force finding on Community-Wide Multicomponent Interventions [PDF - 296 kB].

Context

There is no information for this section.

Summary of Results

Seven studies were included in the evidence review, and results showed generally favorable effects for the following outcomes.

  • Sunscreen use (7 studies)
    • Sunscreen use increased by a median of 10.8 percentage points (interquartile interval [IQI]: 7.3 to 23.2; 6 studies)
    • One additional study showed a substantial and sustained increase in sunscreen use over a period of two decades after the implementation of the SunSmart campaign in Australia.
  • Sunburns (2 studies)
    • One study found significant decreases in painful sunburns among children.
      • 15.4 percentage points among those under 6 years of age (95% confidence interval [CI]: ‑21.2, ‑9.6)
      • 6.8 percentage points among children 6 to 13 years (95%CI: ‑14.8, ‑1.2).
    • Another study showed substantial reductions in sunburns among children and adults over the course of several years.
  • Risk behaviors in children and adults (3 studies)
    • Small decreases were seen in intentional sunbathing, use of tanning beds, and time spent in the sun during peak hours (3 studies).

Results from included studies were mixed for other sun protective behaviors, such as use of shade, hats, and other protective clothing (6 studies).

Summary of Economic Evidence

An economic review of this intervention was not conducted.

Applicability

Based on the location, settings, and populations from included studies, results are applicable to the following:

  • Multiple settings including entire communities, schools, recreation centers, child care centers, and healthcare and workplace settings
  • All age groups including children, youth, and adults

Although most evidence for this review comes from outside of the United States, the finding is likely to be applicable to the U.S. context because results were similar across countries, and the strongest evidence of intervention effectiveness comes from a U.S. study.

Evidence Gaps

Each Community Preventive Services Task Force (Task Force) review identifies critical evidence gaps—areas where information is lacking. Evidence gaps can exist whether or not a recommendation is made. In cases when the Task Force finds insufficient evidence to determine whether an intervention strategy works, evidence gaps encourage researchers and program evaluators to conduct more effectiveness studies. When the Task Force recommends an intervention, evidence gaps highlight missing information that would help users determine if the intervention could meet their particular needs. For example, evidence may be needed to determine where the intervention will work, with which populations, how much it will cost to implement, whether it will provide adequate return on investment, or how users should structure or deliver the intervention to ensure effectiveness. Finally, evidence may be missing for outcomes different from those on which the Task Force recommendation is based.

Identified Evidence Gaps

  • High-quality studies are needed to better understand the long-term effectiveness of multicomponent community-wide interventions (e.g., interrupted time series studies)
  • More evidence is needed to determine variability in the effectiveness of interventions by type of setting and population characteristics (e.g., general population, children and their caregivers, race/ethnicity, type of skin)
    • More information is needed about how intervention effectiveness varies depending on the key characteristics such as scope of intervention (national vs. local), intensity, and the combination of components or presence/absence of specific components.
  • It would be helpful to have more studies that measure skin cancer incidence as an outcome.

Study Characteristics

  • Studies were conducted in the United States (3 studies), Australia (3 studies), and the United Kingdom (1 study).
  • Most of the evidence came from interventions conducted from 1980-2000 (6 studies).
  • Most of the interventions reached a high proportion of the targeted community and included children, youth, and adults.
  • All of the interventions had individually-directed educational and persuasive components, such as didactic programs or small media (7 studies), and five of them also had considerable mass media components (5 studies).
  • Several studies also included environmental strategies to make it easier to engage in protective behaviors—such as distribution of sunscreen or provision of shade structures (4 studies)—and policy changes, often related to sun exposure during peak hours or tanning bed use (4 studies).

Publications