Table 7.
Comparison of survey responders and non-responders
| Demographic Characteristics | Overall N = 7435 | Non-responders n = 5538 (75.2%) | Responders n = 1847 (25.8%) | P value |
|---|---|---|---|---|
| Cancer type, n(%) | ||||
| Breast cancer | 2425 (32.6) | 1725 (30.9) | 700 (37.9) | < 0.001 |
| Colorectal cancer | 2109 (28.4) | 1585 (28.4) | 524 (28.4) | |
| Lung cancer | 2901 (39) | 2278 (40.8) | 623 (33.7) | |
| Age, years (Mean, SD) | 68.6+/−9.46 | 68.3+/−9.67 | 69.7+/−8.63 | < 0.001 |
| Gender (1 = female) | 4768 (64.1) | 3534 (63.2) | 1234 (66.8) | 0.006 |
| Race/Ethnicity (Medicare only) | ||||
| White | 5264 (82.3) | 3885 (81.4) | 1379 (84.9) | 0.006 |
| Black | 918 (14.4) | 717 (15) | 201 (12.4) | . |
| Other | 213 (3.3) | 169 (3.5) | 44 (2.7) | . |
| Geographic Region | ||||
| Northeast | 108 (1.5) | 79 (1.4) | 29 (1.6) | 0.326 |
| Midwest | 1759 (23.7) | 1306 (23.4) | 453 (24.5) | |
| South | 5033 (67.7) | 3813 (68.2) | 1220 (66.1) | |
| West | 535 (7.2) | 390 (7) | 145 (7.9) | |
| Plan Type = Medicare Advantage (vs. Commercial) | 6380 (85.8) | 4761 (85.2) | 1619 (87.7) | 0.009 |
| Dual Eligible | 937 (14.7) | 745 (15.6) | 192 (11.8) | < 0.001 |
| Clinical Characteristics | ||||
| Comorbidity Index | 7.66+/−3.24 | 7.66+/−3.28 | 7.68+/−3.13 | 0.834 |
| Comorbid conditions (pre-index) | ||||
| Anemia | 2302 (31) | 1755 (31.4) | 547 (29.6) | 0.149 |
| Anxiety | 1294 (17.4) | 1008 (18) | 286 (15.5) | 0.012 |
| Autoimmune disorders | 590 (7.9) | 445 (8.0) | 145 (7.9) | 0.876 |
| Ischemia | 1616 (21.7) | 1230 (22) | 386 (20.9) | 0.315 |
| Cardiac diseases | 29 (0.4) | 24 (0.4) | 5 (0.3) | 0.343 |
| Cerebrovascular diseases | 864 (11.6) | 675 (12.1) | 189 (10.2) | 0.032 |
| Depression | 1079 (14.5) | 843 (15.1) | 236 (12.8) | 0.015 |
| Hypertension | 5023 (67.6) | 3770 (67.5) | 1253 (67.8) | 0.766 |
| Liver diseases | 38 (0.5) | 28 (0.5) | 10 (0.5) | 0.833 |
| Pulmonary disease | 229 (3.1) | 169 (3) | 60 (3.2) | 0.629 |
| Renal disease including ESRD | 1264 (17) | 958 (17.1) | 306 (16.6) | 0.568 |
| Rheumatoid arthritis | 214 (2.9) | 166 (3) | 48 (2.6) | 0.407 |
| Diabetes Mellitus | 2210 (29.7) | 1708 (30.6) | 502 (27.2) | 0.006 |
| Pneumonia | 859 (11.6) | 670 (12.0) | 189 (10.2) | 0.041 |
| Osteoporosis | 577 (7.8) | 430 (7.7) | 147 (8.0) | 0.713 |