Table 1.
Demographic Characteristics of Patients
| Seropositive (n=208) |
Seronegative (n=37) |
p-value | |||
|---|---|---|---|---|---|
|
| |||||
| Age at Onset, median (mean, range) | 37.0 (38.3; 7.0–78.8) | 36.0 (38.6; 7.9–70.0) | 0.90 | ||
|
| |||||
| Female sex, n (%) | 191 (92%) | 25 (68%) | 0.0002* | ||
|
| |||||
| Race | |||||
| White, Non-Hispanic | 52 | 20 | 0.0007* | ||
| Non-White | 156 | 17 | |||
| Asian | 97 | 9 | |||
| Black | 44 | 5 | |||
| Hispanic | 15 | 3 | |||
|
| |||||
| Disease duration, median (mean, range) in years | 8.3 (8.8; 0.8–25.2) | 5.9 (7.5; 0.7–33.6) | 0.15 | ||
|
| |||||
| Time to initial immunotherapy, median (mean, range) in years | 0.7 (2.73; 0.0–27.9) | 3.1 (4.0; 0.0–23.4) | 0.02* | ||