Table 2.
Descriptive statistics by syphilis status
| Variable | Level | Syphilis | No syphilis | P-value |
|---|---|---|---|---|
| [N = 383 (1.3%)] | [N = 28 397 (98.7%)] | |||
| Age, mean (SD) | 58.7 (15.5) | 64.8 (15.1) | <0.0001 | |
| Sex, n (%) | Female | 166 (43.3) | 12 773 (45.0) | 0.5221 |
| Male | 217 (56.7) | 15 624 (550) | ||
| Race, n (%) | Black | 272 (71.0) | 7915 (27.9) | <0.0001 |
| Other | 14 (3.7) | 1311 (4.6) | ||
| White | 97 (25.3) | 19 171 (67.5) | ||
| Ethnicity, n (%) | Hispanic | 31 (8.1) | 3374 (11.9) | 0.0226 |
| Non-Hispanic | 352 (91.9) | 25 023 (88.1) | ||
| Dialysis modality, n (%) | HD | 364 (95.0) | 26 024 (91.6) | 0.0253 |
| PD | 17 (4.4) | 1721 (6.1) | ||
| Missing/unknown | <10 | 652 (2.3) | ||
| Access type, n (%) | AVF | 38 (9.9) | 2847 (10.0) | 0.5225 |
| Catheter | 233 (60.8) | 17 450 (61.5) | ||
| Graft | 15 (3.9) | 828 (2.9) | ||
| Other | <10 | 267 (0.9) | ||
| Missing/unknown | 96 (25.1) | 7005 (24.7) |
AVF: arteriovenous fistula; HD: hemodialysis; PD: peritoneal dialysis; SD: standard deviation.