Table 1.
Characteristics * of study participants.
| Overall | White | African American | Native Hawaiian | Japanese American | Latino | |
|---|---|---|---|---|---|---|
| N | 5267 | 918 | 750 | 684 | 1969 | 946 |
| Sex, % women | 51% | 49% | 60% | 57% | 49% | 48% |
| Age at dietary assessment, mean (SD) | 65.3 (6.9) | 64.3 (6.6) | 65.8 (7.3) | 63.3 (6.5) | 65.9 (7.1) | 66.0 (6.3) |
| Age at stool collection, mean (SD) | 74.6 (6.9) | 73.5 (6.6) | 75.3 (7.2) | 72.8 (6.6) | 75.1 (7.1) | 75.6 (6.4) |
| BMI, mean kg/m2(SD) | 26.4 (5.1) | 26.0 (4.9) | 28.3 (5.5) | 28.3 (5.5) | 24.8 (4.4) | 27.7 (5.0) |
| Normal-weight, % | 43% | 45% | 30% | 31% | 57% | 31% |
| Overweight, % | 37% | 37% | 40% | 36% | 34% | 42% |
| Obese, % | 20% | 18% | 31% | 33% | 10% | 27% |
| Smoking status, % | ||||||
| Never | 47% | 46% | 43% | 42% | 51% | 47% |
| Former | 42% | 41% | 47% | 46% | 40% | 41% |
| Current | 9% | 12% | 12% | 10% | 9% | 12% |
| Energy intake, mean kcal/day (SD) | 1869 (810) | 1925 (712) | 1660 (838) | 2067 (997) | 1789 (653) | 2006 (952) |
| Antibiotics use in the past year, % | 19% | 21% | 17% | 17% | 17% | 21% |
* The characteristics are from the 10-year follow-up of the Multiethnic Cohort (2003–2008; age at dietary assessment, BMI, energy intake and smoking status) or from the Adiposity Phenotype Study and microbiome GWAS (2013–2016; age at stool collection, antibiotics use). The characteristics are presented in percent for categorical traits and mean (standard deviation (SD)) for continuous traits.