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Table 7 Comparison of survey responders and non-responders

From: The relationship between comorbidity medication adherence and health related quality of life among patients with cancer

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