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. Author manuscript; available in PMC: 2024 Jan 1.
Published in final edited form as: Environ Res. 2022 Oct 28;216(Pt 3):114685. doi: 10.1016/j.envres.2022.114685

Table 1.

Participant characteristics in 1999/2000 (N = 1369)

Median (Q1, Q3)a
Age (years) 49.4 (47.4, 51.5)
Body weight (kg) 68.9 (58.6, 83.8)
Fat mass (kg) 25.3 (19.1, 34.3)
Body fat percentage (%) 40.4 (35.7, 45.1)
N (%)b
Site
Detroit area, MI 247 (18%)
Boston, MA 227 (16.6%)
Oakland, CA 306 (22.4%)
Los Angeles, CA 359 (26.2%)
Pittsburgh, PA 230 (16.8%)
Race/ethnicity
White 695 (50.8%)
Black 294 (21.5%)
Chinese 176 (12.9%)
Japanese 204 (14.9%)
Education
High school or less 248 (18.1%)
Some college 438 (32%)
College degree 336 (24.5%)
Postgraduate 347 (25.3%)
Smoking
Never 863 (63%)
Past 364 (26.6%)
Current 142 (10.4%)
Menopausal status
Pre- or peri- menopausal 969 (70.8%)
Natural/surgical menopause 198 (14.5%)
Unknown due to hormone therapy 202 (14.8%)
Currently on hormone therapy
No 1089 (79.5%)
Yes 280 (20.5%)
Obesity status
Normal/underweight 502 (36.7%)
Overweight 407 (29.7%)
Obese 460 (33.6%)
a

“Q1” stands for 1st quartile and “Q3” stands for 3rd quartile.

b

Percentages may not sum to 100 due to rounding.