While prior research has demonstrated the effectiveness of telephone outreach to motivate cancer screening, the Teachers College study is the first to show that the technique can increase CRC screening in a predominantly black population.
The study focused on a mainly minority population in the New York City metropolitan area. The 456 participants were all employed, had health insurance, were at least 52 years old and had not received or scheduled CRC screening of any kind in recent years. Half received phone education during the study - an average of five conversations totaling 23.5 minutes within six months-- while half received only printed material (via direct mail) recommending CRC screening.
AdvertisementThe impact of phone intervention far exceeded the researchers' expectations. Those who received telephone education were more than four times as likely to follow through with CRC screening as those who received printed material.
More specifically, 61 people in the phone intervention group (27 percent) underwent CRC screening within six months of receiving phone contact, whereas only 14 people in the control group (6 percent) underwent screening. Of those who underwent screening after receiving phone education, 18 received medically significant diagnoses, compared to three in the control group.
Of the 456 study participants, 288 were black, 74 white and 90 'other.'About 75 percent (324) had incomes under $50,000, and fewer than half (213) had more than a high school education. There were 324 women and 132 men.
'It is encouraging to find that telephone outreach can have a strong positive impact on the health-related behavior of this high risk urban minority group,' said Basch. 'Indeed, the impact of the phone intervention surprised us because it exceeded that of earlier studies that did not focus on minorities. The inference is that phone intervention may be particularly effective among groups who are less likely than the general population to have participated in screening.'
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