Table 1 Characteristics of the participants, NHANES 2005–2010, 2013–2014 (n = 3741)
From: Association between total bilirubin and bone mineral density level in adolescents
| Â | Means or proportions |
|---|---|
Age (years) | 15.46 ± 2.26 |
Sex (%) | |
 Male | 1997 (53.38) |
 Female | 1744 (46.62) |
Race (%) | |
 Non-Hispanic white | 1094 (29.24) |
 Black | 1031 (27.56) |
 Mexican American | 1106 (29.56) |
 Other Hispanic | 313 (8.37) |
 Other race/ethnicity | 197 (5.27) |
Education, n (%) | |
 Less high school | 3190 (85.29) |
 High school | 307 (8.21) |
More than high school | 243 (6.50) |
Income (%) | |
 Less than $ 25,000 | 855 (23.54) |
 $ 25,000–74,999 | 1402 (38.60) |
More than $ 75,000 | 1375 (37.86) |
Body mass index (%) | Â |
 Underweight | 493 (13.21) |
 Normal weight | 1970 (52.77) |
 Overweight | 709 (18.99) |
 Obese | 561 (15.03) |
Alcohol use (%) | |
 Never | 3432 (93.39) |
 Past or current | 243 (6.61) |
Calcium intake (mg) | 1000.17 ± 673.29 |
Total bilirubin (mg/dL) | 0.75 ± 0.34 |
Diabetes (%) | |
 No | 3701 (99.41) |
 Yes | 22 (0.59) |