Table 1. Baseline characteristics of chronic dialysis patients with anal abscess.
| Characteristics | All (N=43) |
Surgical (N=27) |
Nonsurgical (N=16) |
p-value | |
|---|---|---|---|---|---|
| Age, year | 59.98±11.93 | 59.59±12.35 | 60.63±11.56 | 0.788 | |
| Male gender, n (%) | 33 (76.7) | 21 (77.7) | 12 (75.0) | 1.000* | |
| Body mass index, kg/m2 | 24.20±3.89 | 24.12±4.06 | 24.38±3.62 | 0.857 | |
| Recent smoking, n (%) | 16 (37.2) | 11 (40.7) | 5 (31.3) | 0.534 | |
| Comorbidity, n (%) | |||||
| Hypertension | 23 (53.5) | 14 (51.9) | 9 (56.2) | 0.780 | |
| Diabetes mellitus | 25 (58.1) | 17 (63.0) | 8 (50.0) | 0.405 | |
| Coronary artery disease | 6 (14.0) | 2 (7.4) | 4 (25.0) | 0.174* | |
| Congestive heart failure | 3 (7.0) | 2 (7.4) | 1 (6.3) | 0.545* | |
| Cerebral vascular accident | 7 (16.3) | 3 (11.1) | 4 (25.0) | 0.394* | |
| Chronic hepatitis B | 4 (9.3) | 1 (3.7) | 3 (18.8) | ||
| Chronic hepatitis C | 11 (25.6) | 6 (22.2) | 5 (31.3) | ||
| Cirrhosis | 7 (16.3) | 2 (7.4) | 5 (31.3) | 0.082* | |
| Malignancy | 7 (16.3) | 3 (11.1) | 4 (25.0) | 0.394* | |
| Constipation | 27 (62.8) | 19 (70.4) | 8 (50.0) | 0.182 | |
| Hemorrhoids | 7 (16.3) | 5 (18.5) | 2 (12.5) | 0.695* | |
| Primary cause of end-stage renal disease | 1.000* | ||||
| Diabetic nephropathy | 15 (34.9) | 9 (33.3) | 6 (37.5) | ||
| Chronic glomerulonephritis | 23 (53.5) | 15 (55.5) | 8 (50.0) | ||
| Others | 5 (11.6) | 3 (11.1) | 2 (12.5) | ||
| Duration of renal replacement therapy, median days, (lower quartile-upper quartile) | 1,439 (633-2,779) |
1,381 (678-1,813.5) | 2,001.5 (730.25-3,091.5) |
0.462# | |
| Type of dialysis access, n (%) | 0.769* | ||||
| Arteriovenous fistula | 28 (65.1) | 17 (63.0) | 11 (68.8) | ||
| Arteriovenous graft | 6 (14.0) | 4 (14.8) | 2 (12.5) | ||
| Tunneled cuffed catheter | 3 (7.0) | 1 (3.7) | 2 (12.5) | ||
| Nontunneled central venous catheter | 1 (2.3) | 1 (3.7) | 0 (0.0) | ||
| Peritoneal dialysis | 5 (11.6) | 4 (14.8) | 1 (6.3) | ||
*
Fisher's exact test.
#
Mann-Whitney test.