Table 2

Response rates by incentive amount, length and cancer type

Incentive amount

Colon

RR2

(RR4)

Breast

RR2

(RR4)

Prostate

RR2

(RR4)

Total

RR2

(RR4)


Short

Long

Short

Long

Short

Long

Short

Long

Total

N


$3

50.6%

44.9%

69.7%

68.4%

71.6%

63.6%

64.3%

59.4%

61.8%

566

$5

52.1%

41.7%

70.7%

70.7%

69.1%

62.6%

64.1%

58.5%

61.3%

584

Total

47.3%a

(57.2%)

69.9%b

(73.3%)

66.7%b

(69.5%)

64.2%

58.9%

61.6%

(67%)


Number of usable surveys

368

392

390

573

577

1150


aResponse rates in parentheses are adjusted for estimated deaths, according to CDC and SEER data. Rates with different superscripts were significantly different from each other in logistic regression models.

Kelly et al. BMC Medical Research Methodology 2010 10:65   doi:10.1186/1471-2288-10-65

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