Suarez L, Roche R A, Pulley L V, Weiss N S, Goldman D, Simpson D M
Texas Cancer Registry, Texas Department of Health, Austin 78756-3199, USA.
Am J Prev Med. 1997 Nov-Dec;13(6):411-7.
We evaluated an intervention program for Mexican-American women to increase Pap smear and mammography screening.
The three-year intervention included the presentation of role models in the media and reinforcement by peer volunteers. We used a two-community (intervention and comparison) pre-post test design. Activities were targeted to a mainly Spanish-speaking, poverty-level, immigrant population. Pre- and postintervention screening rates were based on independent random samples of Mexican-American women 40 years and older.
Women reported a 6% absolute increase in Pap smear use similar to the 7% increase in the comparison community. Both communities experienced large but similar increases in recent mammography use (17% and 19%). Adjusting for differences in demographic factors, intervention and comparison changes remained identical.
Our peer intervention failed to accelerate the secular trend in cancer screening low-income Mexican-American women. Likely, promotional activities were too diffuse and the comparison community was contaminated with similar interventions. Strong social and market forces make it difficult to measure the effect of a specialized intervention on cancer screening rates.
我们评估了一项针对墨西哥裔美国女性的干预项目，以提高巴氏涂片检查和乳房X光检查的筛查率。
为期三年的干预措施包括在媒体上展示榜样人物以及由同伴志愿者进行强化宣传。我们采用了双社区（干预组和对照组）前后测设计。活动的目标人群主要是讲西班牙语、处于贫困水平的移民群体。干预前后的筛查率基于对40岁及以上墨西哥裔美国女性的独立随机样本得出。
女性报告称巴氏涂片检查的使用率绝对增加了6%，与对照组社区7%的增幅相似。两个社区近期乳房X光检查的使用率都有大幅但相似的增长（分别为17%和19%）。在对人口统计学因素的差异进行调整后，干预组和对照组的变化仍然相同。
我们的同伴干预未能加速低收入墨西哥裔美国女性癌症筛查的长期趋势。可能是宣传活动过于分散，且对照组社区受到了类似干预的影响。强大的社会和市场力量使得难以衡量专门干预措施对癌症筛查率的影响。
