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Table 1 Study sample characteristics: Observed data (N = 6471)

From: Proxy and patient reports of health-related quality of life in a national cancer survey

Characteristic

Overall N (%)

Proxy-Reported N (%)

Patient-Reported N(%)

P-value

Respondent type

 Proxy

1011 (15.6)

1011 (100)

5460 (100)

N/A

 Patient

5460 (84.4)

   

Patient cancer type

 Colorectal cancer

2907 (44.9)

485 (48.0)

2422 (44.4)

0.0339

 Lung cancer

3564 (55.1)

526 (52.0)

3038 (55.6)

 

Patient disease stage/curabilitya

 Incurable

2089 (32.3)

410 (40.6)

1679 (30.8)

<0.0001

 Potentially curable

4382 (67.7)

601 (59.5)

3781 (69.3)

 

CanCORS site

 1

933 (14.4)

65 (6.4)

868 (15.9)

<0.0001

 2

1345 (20.8)

206 (20.4)

1139 (20.9)

 

 3

857 (13.2)

238 (23.5)

619 (11.3)

 

 4

1359 (21.0)

209 (20.7)

1150 (21.1)

 

 5

567 (8.8)

75 (7.4)

492 (9.0)

 

 6

755 (11.7)

124 (12.3)

631 (11.6)

 

 7

655 (10.1)

94 (9.3)

561 (10.3)

 

Patient gender

 Male

3590 (55.5)

680 (67.3)

2910 (53.3)

<0.0001

 Female

2881 (44.5)

331 (32.7)

2550 (46.7)

 

Patient marital status

    

 Married/partnered

4003 (61.9)

643 (63.6)

3360 (61.5)

0.1890

 Single/divorced/widowed/never married/separated

2433 (37.6)

361 (35.7)

2072 (38.0)

 

 Missing (blank/refused/unknown)

35 (0.5)

7 (0.7)

28 (0.5)

 

Patient race/ethnicity

 White

4400 (68.0)

599 (59.3)

3801 (69.6)

<0.0001

 Hispanic

479 (7.4)

108 (10.7)

371 (6.8)

 

 Black

886 (13.7)

160 (15.8)

726 (13.3)

 

 Asian (including Native Hawaiian)

370 (5.7)

97 (9.6)

273 (5.0)

 

 Other (including Native American, multiracial)

322 (5.0)

44 (4.4)

278 (5.1)

 

 Missing (unknown)

14 (0.2)

3 (0.3)

11 (0.2)

 

Patient age

  < =59 years old

1980 (30.6)

131 (13.0)

1849 (33.9)

<0.0001

 60–69 years old

1827 (28.2)

237 (23.4)

1590 (29.1)

 

 70–79 years old

1771 (27.4)

330 (32.6)

1441 (26.4)

 

 80+ years old

893 (13.8)

313 (31.0)

580 (10.6)

 

Patient educational attainment

  < High school (<12th grade completed)

1331 (20.6)

410 (40.6)

921 (16.9)

<0.0001

 High school/vocational/some college (<4 years)

3603 (55.7)

445 (44.0)

3158 (57.8)

 

 College (4 years or degree)/postgraduate

1464 (22.6)

120 (11.9)

1344 (24.6)

 

 Missing (blank/refused/unknown/not applicable)

73 (1.1)

36 (3.6)

37 (0.7)

 

Patient hospitalization in prior year

 No

5035 (77.8)

723 (71.5)

4312 (79.0)

<0.0001

 Yes

1348 (20.8)

263 (26.0)

1085 (19.9)

 

 Missing (blank/refused/unknown/not applicable)

88 (1.4)

25 (2.5)

63 (1.2)

 

History of arterial bypass

 No

6106 (94.4)

929 (91.9)

5177 (94.8)

0.0049

 Yes

280 (4.3)

60 (5.9)

220 (4.0)

 

 Missing (blank/refused/unknown/not applicable)

85 (1.3)

22 (2.2)

63 (1.2)

 

History of coronary artery disease (heart attack and/or bypass)

 No

5314 (82.1)

772 (76.4)

4542 (83.2)

<0.0001

 Yes

1096 (16.9)

228 (22.6)

868 (15.9)

 

 Missing (blank/refused/unknown/not applicable)

61 (0.9)

11 (1.1)

50 (0.9)

 

History of heart failure

 No

5955 (92.0)

875 (86.6)

5080 (93.0)

<0.0001

 Yes

408 (6.3)

112 (11.1)

296 (5.4)

 

 Missing (blank/refused/unknown/not applicable)

108 (1.7)

24 (2.4)

84 (1.5)

 

History of stroke

 No

5754 (88.9)

816 (80.7)

4938 (90.4)

<0.0001

 Yes

628 (9.7)

176 (17.4)

452 (8.3)

 

 Missing (blank/refused/unknown/not applicable)

89 (1.4)

19 (1.9)

70 (1.3)

 

Chronic lung disease

 No

4906 (75.8)

723 (71.5)

4183 (76.6)

0.0039

 Yes

1451 (22.4)

259 (25.6)

1192 (21.8)

 

 Missing (blank/refused/unknown/not applicable)

114 (1.8)

29 (2.9)

85 (1.6)

 

Diabetes

 No

5225 (80.7)

772 (76.4)

4453 (81.6)

0.0004

 Yes

1170 (18.1)

221 (21.9)

949 (17.4)

 

 Missing (blank/refused/unknown/not applicable)

76 (1.2)

18 (1.8)

58 (1.1)

 

History of kidney problems

 No

5727 (88.5)

879 (86.9)

4848 (88.8)

0.2488

 Yes

650 (10.0)

111 (11.0)

539 (9.9)

 

Missing (blank/refused/unknown/not applicable)

94 (1.5)

21 (2.1)

73 (1.3)

 

History of depression/psychological problems

 No

4964 (76.7)

749 (74.1)

4215 (77.2)

0.1117

 Yes

1421 (22.0)

239 (23.6)

1182 (21.7)

 

 Missing (blank/refused/unknown/not applicable)

86 (1.3)

23 (2.3)

63 (1.2)

 

History of previous cancer

 No

5158 (79.7)

785 (77.7)

4373 (80.1)

0.1068

 Yes

1236 (19.1)

211 (20.9)

1025 (18.8)

 

 Missing (blank/refused/unknown/not applicable)

77 (1.2)

15 (1.5)

62 (1.1)

 
  1. aFor lung cancer, incurable was considered AJCC staging IIIB or above, non-AJCC staging of distant, or unstaged; for CRC, incurable was considered AJCC staging IV, non-AJCC staging of distant, or unstaged