Table 1 Basic demographic characteristics of the participants (N = 964 males and 922 females)
Female (%/P25, P75) | Male (%/P25, P75) | Total (%/P25, P75) | |
|---|---|---|---|
Age | |||
12–19 | 136 (14.75) | 194 (20.12) | 330 (17.50) |
20–49 | 394 (42.73) | 391 (40.56) | 785 (41.62) |
≥ 50 | 392 (42.52) | 379 (39.32) | 771 (40.88) |
Menstrual age | 12.63 ± 1.79 | – | – |
BMI | |||
< 18.5 | 21 (2.28) | 44 (4.56) | 65 (3.45) |
18.5–24.9 | 260 (28.20) | 288 (29.88) | 548 (29.06) |
> 24.9 | 641 (69.52) | 632 (65.56) | 1273 (67.50) |
Race | |||
Mexican American | 185 (20.07) | 175 (18.15) | 360 (19.09) |
Other Hispanic | 126 (13.67) | 116 (12.03) | 242 (12.83) |
Non-Hispanic White | 273 (29.61) | 322 (33.40) | 595 (31.55) |
Non-Hispanic Black | 221 (23.97) | 194 (20.12) | 415 (22.00) |
Other Race | 117 (12.69) | 157 (16.29) | 274 (14.53) |
Education | |||
Less than 9th grade | 156 (17.35) | 198 (21.27) | 354 (19.34) |
9–11th grade | 125 (13.90) | 150 (16.11) | 275 (15.03) |
High school graduate | 168 (18.69) | 174 (18.69) | 342 (18.69) |
Some college/AA degree | 261 (29.03) | 229 (24.60) | 490 (26.78) |
College graduate | 189 (21.02) | 180 (19.33) | 369 (20.16) |
Ratio of family income to poverty | |||
Under standard | 704 (76.36) | 726 (75.31) | 1430 (75.82) |
Above standard | 218 (23.64) | 238 (24.69) | 456 (24.18) |
Ever taken birth control pills | |||
Yes | 550 (59.65) | – | – |
No | 372 (40.35) | – | – |
Cotinine (ng/mL) | 0.03 (0.01,0.22) | 0.05 (0.01,26.20) | 0.03 (0.01,2.15) |
TT (ng/dL) | 20.45 (14.10,29.30) | 392.00 (285.00,517.00) | 120.00 (20.50,396.00) |
E (pg/mL) | 24.75 (6.44,84.50) | 23.20 (17.80,30.20) | 23.60 (13.00,37.80) |
SHBG (nmol/L) | 60.50 (39.96,90.49) | 38.32 (26.95,54.48) | 46.61 (32.36,71.47) |
FT (ng/dL) | 0.23 (0.15,0.36) | 6.91 (5.05,9.03) | 1.33 (0.23,6.95) |