Table 1.
Demographics of CHOICE Participants by BMI Category, N=5,918
| All | Participants by BMI Category (kg/m2) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Participants |
Underweight < 18.5 |
Lean 18.5–24.9 |
Overweight
25–29.9 |
Class I Obese
30–34.9 |
Class II/III Obese ≥ 35 |
||||||
| N=5918 | N=174 | N=2,312 | N=1,540 | N=934 | N=958 | p-value* | |||||
| Age, mean(SD) | 25.3 (5.9) | 23.2 (4.7) | 24.1 (5.4) | 25.6 (6.0) | 26.1 (6.2) | 26.9 (6.1) | <0.001 | ||||
| Race | |||||||||||
| Black | 3001 (50.7) | 72 (41.4) | 870 (37.6) | 809 (52.5) | 570 (61.0) | 680 (71.0) | <0.001 | ||||
| White | 2457 (41.5) | 84 (48.3) | 1250 (54.1) | 604 (39.2) | 296 (31.7) | 223 (23.3) | |||||
| Other | 460 (7.8) | 18 (10.3) | 192 (8.3) | 127 (8.3) | 68 (7.3) | 55 (5.7) | |||||
| Hispanic | 300 (5.1) | 9 (5.2) | 105 (4.5) | 99 (6.4) | 53 (5.7) | 34 (3.6) | 0.014 | ||||
| Monthly income | |||||||||||
| None | 1226 (20.8) | 35 (20.1) | 524 (22.7) | 304 (19.8) | 187 (20.1) | 176 (18.4) | <0.001 | ||||
| $1–800 | 1903 (32.3) | 75 (43.1) | 780 (33.9) | 494 (32.1) | 258 (27.7) | 296 (31.0) | |||||
| $801–1600 | 1666 (28.2) | 45 (25.9) | 587 (25.5) | 436 (28.4) | 295 (31.7) | 303 (31.7) | |||||
| $1601+ | 1106 (18.7) | 19 (10.9) | 413 (17.9) | 304 (19.8) | 190 (20.4) | 180 (18.9) | |||||
| Receiving public assistance | 2250 (38.1) | 48 (27.8) | 639 (27.7) | 625 (40.6) | 445 (47.7) | 493 (51.5) | <0.001 | ||||
| Trouble paying for basic necessities | 2393 (40.5) | 62 (35.6) | 828 (35.9) | 625 (40.6) | 433 (46.4) | 445 (46.5) | <0.001 | ||||
| Education | |||||||||||
| ≤ High school | 2007 (33.9) | 71 (40.8) | 734 (31.8) | 535 (34.8) | 345 (37.0) | 322 (33.6) | <0.001 | ||||
| Some college | 2512 (42.4) | 67 (38.5) | 895 (38.7) | 670 (43.5) | 408 (43.8) | 472 (49.3) | |||||
| College graduate | 1396 (23.6) | 36 (20.7) | 683 (29.5) | 334 (21.7) | 179 (19.2) | 164 (17.1) | |||||
| Ever smoking | 2765 (46.7) | 79 (45.4) | 1123 (48.6) | 731 (47.5) | 514 (55.0) | 546 (57.0) | 0.037 | ||||
| Current smoking | 1367 (23.1) | 48 (27.6) | 550 (23.8) | 374 (24.3) | 199 (21.3) | 196 (20.5) | 0.044 | ||||
| Sexual partners last 30 days | |||||||||||
| None | 1125 (19.2) | 21 (12.4) | 390 (17.1) | 316 (20.7) | 191 (20.7) | 207 (21.8) | 0.004 | ||||
| One | 4356 (74.5) | 136 (80.0) | 1750 (76.8) | 1124 (73.6) | 673 (72.8) | 673 (70.9) | |||||
| 2 or more | 370 (6.3) | 13 (7.7) | 139 (6.1) | 88 (5.8) | 61 (6.6) | 69 (7.3) | |||||
| Lifetime sexual partners | |||||||||||
| None | 39 (0.7) | 0 | 12 (0.5) | 14 (0.9) | 4 (0.4) | 9 (1.0) | <0.001 | ||||
| One | 516 (8.7) | 14 (8.1) | 253 (10.9) | 128 (8.3) | 72 (7.7) | 49 (5.1) | |||||
| 2–4 | 1630 (27.5) | 56 (32.2) | 680 (29.4) | 433 (28.1) | 231 (24.7) | 230 (24.0) | |||||
| 5–7 | 1727 (29.2) | 56 (32.2) | 646 (27.9) | 428 (27.8) | 303 (32.4) | 294 (30.7) | |||||
| 8–12 | 839 (14.2) | 15 (8.6) | 308 (13.3) | 225 (14.6) | 136 (14.6) | 155 (16.2) | |||||
| 13 or more | 1167 (19.7) | 33 (19.0) | 413 (17.9) | 312 (20.3) | 188 (20.1) | 221 (23.1) | |||||
| Douching in the past 180 days | 1340 (22.7) | 32 (18.4) | 407 (17.6) | 354 (23.0) | 248 (26.6) | 299 (31.2) | <0.001 | ||||
| Douching in the past 30 days | 590 (10.0) | 19 (10.9) | 168 (7.3) | 162 (10.6) | 99 (10.6) | 142 (14.9) | <0.001 | ||||
| Past sexually transmitted infection | 2461 (41.6) | 63 (36.2) | 801 (34.7) | 660 (42.9) | 441 (47.2) | 496 (51.8) | <0.001 | ||||
| Sexually transmitted infection at baseline | 518 (8.8) | 17 (9.8) | 170 (7.4) | 132 (8.6) | 85 (9.1) | 114 (11.9) | 0.001 | ||||
| Current menstruation flag | 856 (14.5) | 19 (10.9) | 342 (14.8) | 216 (14.0) | 129 (13.8) | 150 (15.7) | 0.458 | ||||
| Current hormonal contraceptive method prior to enrollment | 1520 (25.7) | 38 (21.8) | 636 (27.5) | 412 (26.8) | 199 (21.3) | 235 (24.5) | 0.003 | ||||
Except for age, all demographics are reported as N (%). SD – standard deviation; BMI – body mass index
*
p-values were determined using chi-square test (all categorical variables) or linear regression (age). For categorical variables, p-values represent the distribution of a given categorical variable for All Participants and within a specific BMI category, as shown.