Table 2.
Immune marker levels among control subjects (geometric means), by characteristics of the study population
| sCD23 (U/mL) |
sCD27 (U/mL) |
sCD30 (ng/mL) |
sCD44 (ng/mL) |
CXCL13 (pg/ml) |
|
|---|---|---|---|---|---|
| Age (years)a | |||||
| 50–59 | 37.8 | 198.3 | 27.5 | 357.8 | 56.7 |
| 60–69 | 42.5 | 222.5 | 30.2 | 386.3 | 54.2 |
| 70–79 | 42.7 | 246.3 | 35.1 | 413.1 | 64.0 |
| Study regiona | |||||
| Northeast | 40.4 | 224.8 | 31.3 | 385.5 | 56.9 |
| South | 43.7 | 221.2 | 31.3 | 389.2 | 55.0 |
| Midwest | 48.7 | 231.9 | 33.6 | 402.3 | 57.3 |
| West | 36.0 | 221.0 | 28.7 | 379.6 | 60.6 |
| Race | |||||
| White, not Hispanic | 40.9 | 224.3 | 31.6 | 390.9 | 57.2 |
| Black or African American | 43.6 | 215.3 | 25.4 | 352.9 | 59.9 |
| Other | 47.5 | 228.0 | 30.3 | 388.4 | 59.9 |
| Education | |||||
| Less than high school diploma | 45.3 | 231.0 | 30.8 | 399.1 | 60.2 |
| High school diploma or GED | 54.1 | 249.8 | 35.0 | 402.2 | 65.1 |
| Vocational or training school | 45.3 | 249.6 | 33.3 | 413.3 | 57.3 |
| Some college or associate degree | 41.6 | 216.9 | 30.2 | 386.8 | 54.4 |
| Baccalaureate degree | 35.3 | 228.9 | 30.3 | 370.4 | 53.9 |
| Some postgraduate or professional | 36.1 | 201.2 | 28.3 | 395.0 | 59.6 |
| Master’s or doctoral degree | 38.5 | 213.9 | 30.6 | 372.6 | 58.1 |
| Smoking status | |||||
| Never | 47.1 | 231.8 | 32.4 | 391.4 | 56.7 |
| Former | 37.7 | 214.0 | 29.7 | 381.3 | 57.3 |
| Current | 29.0 | 249.9 | 31.2 | 427.5 | 69.5 |
| Body mass index | |||||
| Underweight (<18.5) | 18.3 | 253.8 | 36.8 | 319.9 | 96.7 |
| Normal weight (18.5–24.9) | 36.5 | 219.3 | 30.1 | 380.8 | 55.6 |
| Overweight (25–29.9) | 41.6 | 217.9 | 31.6 | 394.1 | 57.1 |
| Obesity (30–34.9) | 50.6 | 241.1 | 30.7 | 396.9 | 60.5 |
| Extreme obesity (≥35) | 63.0 | 236.9 | 33.6 | 408.3 | 57.4 |