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. Author manuscript; available in PMC: 2022 Dec 1.
Published in final edited form as: Med Sci Sports Exerc. 2021 Dec 1;53(12):2512–2519. doi: 10.1249/MSS.0000000000002751

Table 1.

Descriptive characteristics of the study sample. Values are frequency (weighted %) and mean (SD).

All Participants Male Female
Overall 2,640 (100.0) 1,460 (49.4) 1,179 (50.6)
Mean (SD) Mean (SD) Mean (SD)
Age (years) 45.3 (15.4) 46.5 (15.5) 44.1 (15.2)
Questionnaire Sedentary Time (hrs/d) 1 7.1 (3.6) 7.0 (3.4) 7.1 (3.8)
ACT24 Recall Durations (hrs/d) 2
 In-bed/sleep time 8.1 (2.2) 7.9 (2.1) 8.3 (2.4)
 Sedentary timeb 9.5 (3.9) 9.9 (3.9) 9.1 (3.8)
 Active time 6.4 (3.7) 6.1 (3.8) 6.6 (3.6)
Frequency (weighted %) Frequency (weighted %) Frequency (weighted %)
Age (years)
 20–29 435 (20.8) 201 (18.9) 234 (22.6)
 30–39 718 (20.1) 366 (17.7) 352 (22.5)
 40–49 494 (18.0) 304 (20.3) 190 (15.7)
 50–59 468 (18.4) 268 (18.2) 200 (18.6)
 60–69 394 (16.8) 237 (17.9) 157 (15.8)
 70–74 131 (5.9) 84 (7.1) 47 (4.7)
Race/ethnicity
 White, non-Hispanic 1,797 (63.7) 1,049 (66.2) 748 (61.2)
 Black, non-Hispanic 282 (10.9) 104 (8.9) 178 (12.9)
 Hispanic 336 (17.0) 148 (14.1) 188 (19.7)
 Asian 105 (3.6) 82 (5.0) 23 (2.2)
 Othe3 120 (4.9) 77 (5.8) 43 (4.0)
Educational Attainment
 High School or less 381 (34.6) 209 (35.4) 172 (33.7)
 Some college/Assoc. Degree 1021 (29.0) 524 (27.5) 497 (30.5)
 Bachelor’s Degree 721 (20.9) 424 (21.9) 297 (19.9)
 Graduate Degree 517 (15.5) 303 (15.1) 214 (16.0)
Household Income ($)
 < 50,000 959 (41.3) 448 (37.3) 510 (45.1)
 50,000–99,000 950 (34.1) 556 (36.5) 394 (31.8)
 100,000–149,000 449 (15.5) 269 (15.6) 180 (15.3)
 150,000+ 282 (9.2) 187 (10.5) 95 (7.8)
Occupational Status
 Working for pay 1,933 (67.2) 1,113 (70.2) 820 (64.3)
 Not working - looking/laid off 130 (6.2) 63 (6.0) 67 (6.4)
 Not working - other 174 (7.5) 42 (3.0) 132 (11.8)
 Retired 287 (13.4) 173 (14.2) 114 (12.5)
 Disabled 116 (5.8) 69 (6.6) 47 (4.9)
Body Mass Index (kg/m 2 )
 < 25 734 (27.6) 367 (25.2) 367 (30.0)
 25–29.9 870 (33.4) 538 (37.5) 332 (29.4)
 30+ 960 (36.5) 509 (34.9) 451 (38.2)
 Missing 76(2.5) 46 (2.5) 30 (2.5)
Aerobic Physical Activity 4
 Inactive 323 (13.9) 169 (12.7) 154 (15.1)
 Insufficiently Active 755 (27.8) 373 (23.9) 382 (31.5)
 Sufficiently Active 640 (24.1) 343 (22.4) 297 (25.8)
 Highly Active 912 (34.0) 571 (40.9) 341 (27.3)
 Missing 10 (0.2) 4 (0.1) 6 (0.4)
Region
New England 118 (5.0) 71 (5.8) 47 (4.3)
Mid-Atlantic 266 (11.8) 147 (12.7) 119 (11.0)
East North Central 479 (14.7) 257 (14.4) 222 (14.9)
West North Central 258 (6.0) 140 (5.7) 118 (6.2)
South Atlantic 497 (22.1) 261 (20.2) 236 (23.8)
East South Central 112 (4.7) 70 (5.5) 42 (3.9)
West South Central 248 (11.3) 140 (11.2) 108 (11.4)
Mountain 251 (8.9) 147 (9.1) 104 (8.8)
Pacific 411 (15.6) 227 (15.5) 184 (15.6)
1

Questionnaire: How much time do you usually spend sitting on a typical day?

2

ACT24 Recall Durations: Sum of total duration of individual sedentary behaviors reported on previous day (all recalls)

3

Other race/ethnicity includes non-Hispanics reporting Other or two or more race/ethnicities

4

Aerobic Physical Activity: Inactive (0 hrs/wk); Insufficiently active (0.1 to 2.49 hrs/wk moderate or 1.24 hrs/wk vigorous or an equivalent combination); Sufficiently active (2.5 to 5.0 hrs/wk moderate or 1.25 to 2.5 hrs/wk vigorous or an equivalent combination); Highly active (> 5hrs/wk moderate or > 2.5 hrs/wk vigorous or an equivalent combination)