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. 2022 Jun 9;5(6):e2216406. doi: 10.1001/jamanetworkopen.2022.16406

Table 1. Participant Characteristics by Adherence to the 2020 American Cancer Society Dietary Guidelines Score Among Adults in the Cancer Prevention Study-3.

Characteristic Dietary score, No. (%) (N = 155 331)a
Quartile 1 (n = 37 366) Quartile 2 (n = 36 567) Quartile 3 (n = 40 659) Quartile 4 (n = 40 739)
Age, mean (SD), y 49.5 (9.64) 51.6 (9.69) 52.7 (9.63) 53.9 (9.48)
BMI, mean (SD) 29.5 (6.94) 28.2 (6.26) 27.2 (5.91) 25.5 (5.09)
Recreational physical activity, mean (SD), MET-h/wk 9.2 (8.54) 10.3 (8.75) 10.9 (8.82) 11.9 (9.08)
Sex
Men 7262 (19.4) 8624 (23.6) 7460 (18.3) 8870 (21.8)
Women 30 104 (80.6) 27 943 (76.4) 33 199 (81.7) 31 869 (78.2)
Race and ethnicity
American Indian or Alaskan Native 387 (1.0) 325 (0.9) 370 (0.9) 326 (0.8)
Asian, Native Hawaiian, or Pacific Islander 471 (1.3) 619 (1.7) 732 (1.8) 899 (2.2)
Black 1056 (2.8) 867 (2.4) 964 (2.4) 942 (2.3)
Hispanic 1896 (5.1) 1827 (5.0) 2085 (5.1) 2159 (5.3)
White 33 300 (89.1) 32 650 (89.3) 36 187 (89.0) 36 029 (88.4)
Otherb 256 (0.7) 279 (0.8) 321 (0.8) 384 (0.9)
Income, $
<25 000 1868 (5.0) 1462 (4.0) 1472 (3.6) 1409 (3.5)
25 000 to <50 000 5396 (14.4) 4258 (11.6) 4327 (10.6) 3913 (9.6)
50 000 to <75 000 7519 (20.1) 6632 (18.1) 6969 (17.1) 6595 (16.2)
75 000 to <100 000 6981 (18.7) 6493 (17.8) 7170 (17.6) 6910 (17.0)
100 000 to <125 000 5992 (16.0) 5983 (16.4) 6668 (16.4) 6582 (16.2)
125 000 to <150 000 3420 (9.2) 3796 (10.4) 4315 (10.6) 4268 (10.5)
≥150 000 6190 (16.6) 7943 (21.7) 9738 (24.0) 11 062 (27.2)
Educational level
≤High school 4152 (11.1) 2953 (8.1) 2443 (6.0) 1689 (4.1)
Some college or 2-y degree 12 393 (33.2) 10 492 (28.7) 10 415 (25.6) 8079 (19.8)
College graduate 12 381 (33.1) 12 773 (34.9) 14 496 (35.7) 14 349 (35.2)
Graduate degree 8440 (22.6) 10 349 (28.3) 13 305 (32.7) 16 622 (40.8)
Rural-urban commuting area
Metropolitan 30 387 (81.3) 31 360 (85.8) 35 810 (88.1) 36 967 (90.7)
Micropolitan 4593 (12.3) 3496 (9.6) 3211 (7.9) 2613 (6.4)
Small town 1478 (4.0) 1050 (2.9) 1033 (2.5) 728 (1.8)
Rural 908 (2.4) 661 (1.8) 605 (1.5) 431 (1.1)
Residing in a food desert
No 34 010 (91) 33 917 (92.8) 38 051 (93.6) 38 374 (94.2)
Yes 3356 (9.0) 2650 (7.2) 2608 (6.4) 2365 (5.8)
Marital status
Married or living with partner 28 174 (76.3) 28 024 (77.6) 31 251 (77.7) 31 358 (77.9)
Never married 3170 (8.6) 2655 (7.4) 2798 (7.0) 2848 (7.1)
Divorced, separated, or widowed 5588 (15.1) 5425 (15.0) 6184 (15.4) 6038 (15.0)
Work status
Full time 27 469 (74.8) 25 371 (70.5) 26 540 (66.6) 24 840 (62.3)
Part time 3545 (9.7) 3901 (10.8) 5125 (12.9) 5934 (14.9)
Retired 3087 (8.4) 4153 (11.5) 5264 (13.2) 6146 (15.4)
Other 2600 (7.1) 2546 (7.1) 2942 (7.4) 2939 (7.4)
Smoking status
Never 25 791 (69.2) 25 102 (68.9) 27 904 (68.8) 28 298 (69.7)
Current 1952 (5.2) 1123 (3.1) 873 (2.2) 492 (1.2)
Former 9509 (25.5) 10 213 (28.0) 11 754 (29.0) 11 816 (29.1)
Alcohol intake, drinks/d
None 13 132 (35.2) 10 047 (27.5) 9957 (24.5) 9426 (23.2)
>0-1 18 944 (50.8) 19 268 (52.8) 21 845 (53.8) 21 592 (53.1)
>1 5240 (14.0) 7202 (19.7) 8783 (21.6) 9667 (23.8)
Family history of cancer
No 14 047 (38.9) 13 195 (37.3) 14 345 (36.3) 14 060 (35.6)
Yes 22 091 (61.1) 22 216 (62.7) 25 141 (63.7) 25 481 (64.4)
Comorbiditiesc
None 19 777 (52.9) 19 402 (53.1) 22 476 (55.3) 23 834 (58.5)
1 10 477 (28.0) 10 253 (28.0) 11 278 (27.7) 11 115 (27.3)
≥2 7112 (19.0) 6912 (18.9) 6905 (17.0) 5790 (14.2)
Full-service restaurant
None or rarely 6797 (18.4) 6442 (17.8) 7288 (18.1) 8296 (20.6)
1 time/mo to 2 times/wk 27 546 (74.4) 27 231 (75.1) 30 538 (75.8) 29 792 (74.0)
≥3 times/wk 2675 (7.2) 2580 (7.1) 2458 (6.1) 2183 (5.4)
Fast food consumption
None or rarely 9166 (24.6) 13 814 (38.0) 19 921 (49.3) 27 025 (66.8)
1 time/mo to 2 times/wk 20 789 (55.9) 18 725 (51.5) 17 971 (44.4) 12 408 (30.6)
≥3 times/wk 7231 (19.4) 3838 (10.6) 2538 (6.3) 1053 (2.6)
Homecooked meals
None or rarely 1819 (4.9) 1173 (3.2) 844 (2.1) 552 (1.4)
1 time/mo to 2 times/wk 10 259 (27.6) 7481 (20.6) 6268 (15.5) 3877 (9.6)
≥3 times/wk 25 059 (67.5) 27 708 (76.2) 33 297 (82.4) 36 077 (89.1)

Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); MET, metabolic equivalent of task.

a

Total scores range from 0 to 12, with higher score indicating better diet quality. Quartiles are calculated using sex-specific cut points (men: quartile 1: 0 to <4.50; quartile 2: 4.50 to <6.25; quartile 3: 6.25 to <7.75; quartile 4: 7.75 to 12; women: quartile 1: 0 to <4.75; quartile 2: 4.75 to <6.25; quartile 3: 6.25 to <8.00; quartile 4: 8.00 to 12).

b

Includes individuals who identified as more than 1 minority race or ethnicity.

c

Comorbidities include diabetes; high blood pressure; high cholesterol; cancer; myocardial infarction; heart bypass surgery, angioplasty, or stent; stroke; and emphysema, chronic bronchitis, or chronic obstructive pulmonary disease.