Volume 7: No. 2, March 2010

ORIGINAL RESEARCH
Profiles of 800,000 Users of the National Cancer Institute’s Cancer Information Service Since the Debut of Online Assistance, 2003-2008

Figure 1. Number of calls (A), LiveHelp contacts (B), and e-mails (C) to the National Cancer Institute’s Cancer Information Service, 2003-2008.

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Figure 2. Mean age of telephone callers and LiveHelp users of the National Cancer Institute’s Cancer Information Service, 2003-2008. Telephone callers (mean age, 52 y; standard deviation, 15.4 y) were significantly older than LiveHelp users (mean age, 41 y; standard deviation, 13.2 y) across all 6 years (independent samples t test, P < .001). For some periods during reorganization of Cancer Information Service infrastructure (breaks in the red line above), age was not collected in LiveHelp.

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Figure 3. Mean educational level of telephone callers and LiveHelp users of the National Cancer Institute’s Cancer Information Service, 2003-2008. We classified educational level on a 6-point scale as follows: 1, grade school; 2, some high school; 3, high school graduate; 4, some college; 5, college graduate; and 6, postgraduate. LiveHelp users reported significantly more education across all 6 years (independent samples Mann-Whitney U test, P < .001) than did telephone callers. For some periods during reorganization of Cancer Information Service infrastructure (breaks in the red line above), educational level was not collected in LiveHelp.

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Figure 4. Mean household income of telephone callers and LiveHelp users of the National Cancer Institute’s Cancer Information Service, 2007 and 2008. We classified household income on a 7-point scale as follows: 1, <$10,000; 2, $10,000-$19,000; 3, $20,000-$29,000; 4, $30,000-$39,000; 5, $40,000-$59,000; 6, $60,000-$79,000; and 7, ≥$80,000. LiveHelp users reported significantly more income than did telephone callers both years (independent samples Mann-Whitney U test, P < .001). Income data were not collected before January 2007.

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The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.

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