Table 3.
Demographics of the sample and responders by recruitment method.
| Demographics | USPS | Portal | Total | P value | |||
| Sample |
|
|
|
|
|
||
|
|
Total, N | 34,934 | 14,336 | 4999 | 54,269 |
|
|
|
|
Responded, n (%) | 2037 (5.8) | 374 (2.6) | 728 (14.6) | 3139 (5.8) |
|
|
| Gender (male) |
|
|
|
|
<.05 | ||
|
|
Total, n | 15,947 | 7397 | 1825 | 25,169 |
|
|
|
|
Responded, n (%) | 905 (5.7) | 189 (2.6) | 255 (14.0) | 1349 (5.4) |
|
|
| Race |
|
|
|
|
<.05 | ||
|
|
White |
|
|
|
|
|
|
|
|
|
Total, n | 25,708 | 10,208 | 4518 | 40,434 |
|
|
|
|
Responded, n (%) | 1766 (6.9) | 307 (3.0) | 680 (15.1) | 2753 (6.8) |
|
|
|
African American |
|
|
|
|
|
|
|
|
|
Total, n | 3344 | 985 | 108 | 4437 |
|
|
|
|
Responded, n (%) | 57 (1.7) | 4 (0.4) | 11 (10.2) | 72 (1.6) |
|
|
|
Native American |
|
|
|
|
|
|
|
|
|
Total, n | 160 | 69 | 21 | 250 |
|
|
|
|
Responded, n (%) | 6 (3.8) | 1 (1.4) | 4 (19.0) | 11 (4.4) |
|
|
|
Asian |
|
|
|
|
|
|
|
|
|
Total, n | 860 | 442 | 94 | 1396 |
|
|
|
|
Responded, n (%) | 38 (4.4) | 7 (1.6) | 17 (18.1) | 62 (4.4) |
|
|
|
Other |
|
|
|
|
|
|
|
|
|
Total, n | 2596 | 1951 | 5 | 4552 |
|
|
|
|
Responded, n (%) | 97 (3.7) | 41 (2.1) | 1 (20.0) | 139 (3.1) |
|
|
|
Unknown |
|
|
|
|
|
|
|
|
|
Total, n | 1014 | 623 | 93 | 1730 |
|
|
|
|
Responded, n (%) | 17 (1.7) | 13 (2.1) | 15 (16.1) | 45 (2.6) |
|
| Ethnicity (Hispanic) |
|
|
|
|
<.05 | ||
|
|
Total, n | 3057 | 2139 | 94 | 5290 |
|
|
|
|
Responded, n (%) | 68 (2.2) | 34 (1.6) | 16 (17.0) | 118 (2.2) |
|
|
| Insurance status |
|
|
|
|
|
||
|
|
Self-Pay |
|
|
|
|
<.05 | |
|
|
|
Total, n | 5035 | 3190 | 2985 | 11,210 |
|
|
|
|
Responded, n (%) | 343 (6.8) | 99 (3.1) | 433 (14.5) | 875 (7.8) |
|
|
|
Medicare |
|
|
|
|
|
|
|
|
|
Total, n | 573 | 3 | 442 | 1018 |
|
|
|
|
Responded, n (%) | 16 (2.8) | 0 (0.0) | 71 (16.1) | 87 (8.5) |
|
|
|
Medicaid |
|
|
|
|
|
|
|
|
|
Total, n | 6672 | 2257 | 102 | 9031 |
|
|
|
|
Responded, n (%) | 232 (3.5) | 35 (1.6) | 17 (16.7) | 284 (3.1) |
|
|
|
Private insurance |
|
|
|
|
|
|
|
|
|
Total, n | 16,393 | 7847 | 966 | 25,206 |
|
|
|
|
Responded, n (%) | 1147 (7.0) | 215 (2.7) | 149 (15.4) | 1511 (6.0) |
|
|
|
Other |
|
|
|
|
|
|
|
|
|
Total, n | 1017 | 368 | 0 | 1385 |
|
|
|
|
Responded, n (%) | 30 (2.9) | 8 (2.2) | 0 (0.0) | 38 (2.7) |
|
|
|
Unknown |
|
|
|
|
|
|
|
|
|
Total, n | 4073 | 613 | 344 | 5030 |
|
|
|
|
Responded, n (%) | 215 (5.3) | 16 (2.6) | 58 (16.9) | 289 (5.7) |
|
| BMI category |
|
|
|
|
|
||
|
|
Overweight |
|
|
|
|
<.05 | |
|
|
|
Total, n | 9159 | 4599 | 1349 | 15,107 |
|
|
|
|
Responded, n (%) | 510 (5.6) | 115 (2.5) | 207 (15.3) | 832 (5.5) |
|
|
|
Obese |
|
|
|
|
|
|
|
|
|
Total, n | 10,372 | 3713 | 1893 | 15,978 |
|
|
|
|
Responded, n (%) | 569 (5.5) | 71 (1.9) | 289 (15.3) | 929 (5.8) |
|