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Table 1 Responder demographics by experimental arm

From: Survey mode and asking about future intentions did not impact self-reported colorectal cancer screening accuracy

 

Mail†

Phone†

 

Intention (N = 2248)

No intention (N = 3775)

Intention (N = 1701)

No intention (N = 1695)

Total Eligible (N = 9419)

P value‡

Responders, N (%)

914 (40.7%)

838 (22.2%)

956 (56.4%)

930 (54.9%)

3638 (38.6%)

< 0.0001

Among Responders

      

Gender, N (%)

 

**

**

**

 

***

F

503 (55.0%)

390 (46.5%)

572 (59.8%)

531 (57.2%)

4947 (52.5%)

 

M

411 (45.0%)

448 (53.5%)

384 (40.2%)

398 (42.8%)

4470 (47.5%)

 

Age

**

**

   

***

Mean (SD)

65.2 (10.2)

66.4 (10.8)

63.1 (10.0)

63.7 (10.3)

63.2 (10.4)

 

Race, N (%)

**

**

**

**

 

*

Caucasian

874 (95.6%)

795 (94.9%)

907 (94.9%)

889 (95.6%)

8677 (92.1%)

 

Other

21 (2.3%)

11 (1.3%)

31 (3.2%)

22 (2.4%)

504 (5.4%)

 

Unknown

19 (2.1%)

32 (3.8%)

18 (1.9%)

19 (2.0%)

238 (2.5%)

  1. *0.01 ≤ P-value < 0.05.
  2. **P-value < 0.01.
  3. ***P-value < 0.001.
  4. †P-values (denoted by asterisks) are comparing distributions of responders within each mode to the total eligible (treating “Total” as fixed).
  5. ‡Overall p-value comparing the distributions of responders between the four conditions.
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BMC Medical Research Methodology

ISSN: 1471-2288

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